Ebike power cuts out under load. I used this forum to determin how to check the codes.

Ebike power cuts out under load *This item is a service provided in-store only. It makes quite a noise, similar to when screw on cassettes tightened up under load. When an old battery shows full charge but cuts out under load, it's just an old battery that has lost capacity. Bigbikebob 10 W. Another post mentioned could be loose battery connection since the hill is full of potholes and road surface irregularities that’s causing rattles. Redrock; Jun 25, 2024; General Ebike Discussion Your motor is a pretty ideal load. Took it out for a ride while everything (motor, controller, battery) is ice cold. Very thankful for that, as I was quite a way from home. 2 = 58. using the ping v2. After install if I go up a significant hill with full 1500w of power for like 2-3 minutes the bike cuts out. Thread starter Bigbikebob; Start date May 21, 2015; 1; 2; Next. The LCD goes blank and a key reset is required to get going again. You could measure it and analyze it, but the end result is you will be buying a replacement I tried adjusting these to make it so my battery would read empty at 20% discharge (theoretically) and increased all of the values. This could be why your e-bike keeps cutting out and it’s usually caused by a damaged inhibitor sensor. but making tweaks to your ride can cause issues to your e-bike power supply, particularly around the wheels Sometimes when I am starting from a dead stop, the power will randomly cut out; the motor won't run (pedal assist or throttle) but the display will still be on, and to fix it, I have to reset the controller. When I put a lot of load through the pedals there is a loud clanking sound, once per pedal-press. Cutting out like that is likely to be either the controller or the battery BMS. Controller started to cut off power under load - Solved. Court J. Does anyone know what might be wrong? This is really frustrating! Thanks. It Since the CA is still powered up when the motor cuts out - we know it's not the battery hitting BMS LVC (Also could look at controller LED) From the CA Diagnostics Screen we can see the operator throttle sweeping from 0. , but won't supply power. Rocks, loose connections, or burned-out components could damage it. Electric Bike Outfitter Motor Cuts Out. I don't have fuses anywhere yet and could be hitting a thermal cutoff. I am told the assistance The issue occurs when I start off with high torque at low speeds, causing a rattling or rumbling noise. Power cuts out under certain circumstances. Posts: 158 Mentioned: 2 Post(s) Tagged: 0 Thread(s) Quoted: 43 Post(s) Likes: 0 Liked 0 Times in 0 Posts You state that Recently got a Bafang BBSHD from Luna Cycle with their 'hot rod' programming. Next as that could cause the power cut-out, and the problem would persist with another battery of the same make. How long have you had the battery, and what's the motor setup? If both your connectors and your battery cells look good but your issue with your throttle causing your eBike to cut out persists, it is likely the root cause is a faulty battery management system (BMS). I remove speed limiters when I use small mid-drives between the pedals. Hi there I have a 2013 ebike bought it new in 2015 been riding it up until a month ago and started cutting out it went back the factory had new motor and reset the torque and controller. The controller is suspect. Sometimes, the issue will be as simple as cleaning the throttle or making sure the connection between it and the controller is tight. I charge the battery completely up, check the voltage and it shows 54. The motor power cuts off when it : 1) hits a speed of 36 kmh or 2) it goes up a slight slope, even with speed lower than 36 kmh. It started out as an occasional quick cut out of power in the lower rpms but progressed to the point to where the bike is unrideable. This is a fairly “normal” thing, depending on the model, power output, battery charge, and the capability of Almost all E-bikes today have a built-in safety feature that cuts out the battery under heavy load, preventing it from overheating and becoming a fire hazard. I only converted the bike a month ago and all the parts are hardly used so far. An electric bike cutting out can The first step in troubleshooting an electric bike that cuts out is to check the battery connections. Different ebike models feature different pedal assist systems; some are built around the front sprocket chainring while others are *If* it's a phase-current-induced motor hall signal issue (which it might not be; it's not all that common in relatively low power systems), you can try to fix it in a few ways, but they all require some form of modification of the motor/controller cabling or the motor or controller. Under load, the power cuts out and loud popping and flames fly out from the muffler. The challenge with dots is you don't know what 2 dots and 4 dots mean. The three LEDs are present *until* the battery cuts out, then all three disappear on the cut out. I have a Bafang 1000w mid-drive with a 52v pack that suddenly is cutting power under almost any load. Apr 8, 2009 3 0. This morning at -10C (14F) I rode mainly under power (70-80% throttle) and after about 8 kms (5 miles) the motor skipped a beat, then a few My e-bike hub motor (48v) cuts out after only turning the wheel for a few seconds. Sounds like the controller is cutting power. Loose or corroded connections can disrupt the flow of power, causing your bike Here are some possible explanations for why your e-bike’s power transmission is disrupted. Thread starter 808ebike; Start date Jul 1, 2022; 1; 2; Next. Attempting to draw energy from a bike motor that by design does not have the If the brain gets faulty, the whole bike can cut out intermittently. 26V - so the operator throttle is working fine. When speaking of loose connections, you’ve to check the following If you’re experiencing power cuts with a new ebike that you’re just starting to use, it might be because the pack has been sized, engineered, or manufactured with less than the required high current capacity for supporting heavy loads. Russell 1 MW. Joined Jan 27, 2014 When your system cuts out under load, this is exactly what’s The first step in troubleshooting an electric bike that cuts out is to check the battery connections. It is a failsafe to not burn out the motor. This noise was totally absent from the previous controller and is similarly absent when the motor is lifted off the ground or when the bike is already at speed. The loosened prongs, throttle, and motor can cause the failure of sensors, batteries, pedal assist, and on controllers. When Hello. If the controller is faulty, the bike may not receive the correct signals, causing it to cut out. If I pedal (on 5) it cuts out pretty much right away. I can't see how anything in the connection between the battery and controller would improve between the time the motor cuts out and me turning off the key and turning it back on. Our Lectric folding ebike XPrem You want to be careful that none of the cells are dropping down to the danger level under load. power cuts out under loadfast acceleration or inclines or standing startsI’ve replaced everything twice. I am very conservative with my power usage - I like to pedal and do not have a throttle Hi folks, so I got this cheap chinese "Enduro" frame ebike. Should be easy Wow - Magic Pie fiascotypical GM; Power cuts out under load; Main Power Line. egoelectricbikes. I jiggled some wires, pulled the battery and plugged it back in, and the power came back on. I found this document: Controller Fault Code PDF, It's definitely not any of the common ebike mid drives like CYC or BBSHD. but it can easily get up a fairly steep hill but then cuts out, but it also cuts out under less load, so I don't think it's Some controllers with user-configurable LVCs will have overly cautious defaults, like 42v for a 48v battery. That means the cell voltage is dropping below 2. e. The wheel still spins freely when I cycle under pedal power, but the moment I send any power to the motor, it begins to vibrate. S. If you find corrosion, you have to replace the pin connector or wiring. SO, twist throttle and the motor turns the wheel for few seconds, motor stops turning wheel, twist off throttle, twist on throttle and motor turns wheel for another few seconds. I have to pull out the battery and put it back in to reset. Removal and EBike Technical . i figured out a hack too so that you can use the two 36V in series without the diodes and without running the power through both of the BMSs. 8 volts Fully charged, each cell group would be 4. System has developed a fault whereby all runs fine when back wheel raised and throttle applied. The faulty controller can cause the electric bike to cut out due to an interruption in power flow from the battery to the motor. I unplug and replug the battery but nothing. If it was 25%/dot it may be dropping 26% or 49% it's not possible to know for sure. . The parts that could be causing this are: Controller Battery Motor Wiring Harness Pedal Assist Sensor Throttle Brake Kill Switches So as you can see, this is a big list and includes most of the electrical components on the bike. Understanding why your e-bike might suddenly stop providing power can help you troubleshoot and get back to a smooth ride. Beautiful expensive doorstop at this point. Loose or corroded connections can disrupt the flow of power, causing your bike to cut out unexpectedly. 2. At 3. When I go uphill, the engine keeps shutting down. it is a Unit Pack Power 48v 7Ah with Samsung cells. Weird thing is, the battery never went dead, just keeps cutting out the power. ) 2. Lithium-ion and Lithium-polymer batteries consist of Of late the power cuts out for no reason. My suggestion; ride the bike on a relatively flat grade at low power settings and try to exceed 14/16km, and if the battery still cuts out under these conditions I'd say you have a battery problem, but not necessarily conclusive, but leaning towards the battery. E-bike will start then stop, turn throttle again sam Common Causes for 2-Stroke Engines Cutting Out at Full Throttle. Each 4 are connected to the BMS, which measures the voltage and switches off power or charging when they get to certain high or low values. Nothing wrong with the BMS, in fact it's actually doing a The mid drives that I happened to ride can be configured to have a brake cut-off switch which I use as a manual power cut off when shifting. It Hi all, I have a new issue with my ebike. Other possiblities include a current or power fault limit in It's also important to avoid placing excessive strain on the motor, such as by overloading the e-bike or by shifting gears while the motor is under heavy load. Make sure the battery terminals are clean and securely fastened. At rest, all 4 light up. Why not just consult the manufacturers if your bike is still under warranty? BeeCool ebikes are all covered under a 2-year warranty. Aries / Aurora loses electrical power -- Fully seating Aries / Aurora I've got an eBike that I built that runs at 72v with two 36v Ping Packs. Sub-reddit for discussion, review and maintenance of eBikes from major and not so major manufacturers. Putting too much weight or load on the motor can cause more wear and tear. EBike Toolbox - Bargains! $ Endless Sphere Wiki - Lost? re-volt 100 µW. My Sur-Ron motor is not moving OR is cutting out while riding but the lights and dashboard remains ON The crash sensor is located under the top part of the controller, if you have disabled the brake & kickstand sensors, adjusted the throttle and checked the connector and you still get cutouts (without ever loosing power to the dashboard and Also, after a good days use (about 6hrs), whenever I full throttle the motor, the power cuts out, until I have to re-throttle it again, and it does the same thing over and over, it’s very annoying. Now, you can have your e-bike diagnosed to replace the sensor, but in most cases, owners Battery pack cutting out under load. Consult your bike's user manual or a professional to determine the appropriate battery life expectancy. I'm trying to know if there is a difference of behavior in motor low voltage cut-off and battery BMS cut-off. O. Why? Alex Stegemann Modified on: Wed, 9 Feb, 2022 at 11:00 AM. It's not possible for me to monitor the voltage while running under load, that is, me riding it and opening the throttle. Understanding these common causes is the first step in troubleshooting and fixing the problem. It’s been suggested it may be the BMS cardI need specific instructions as to a fixso far only vague suggestionsUGH. The BMS may also shut down the battery to prevent it from For all of my e-bikes (3 each different brands), if I’m under very heavy load and the battery has been drained a bit, I had the power cut out due to a voltage drop under load. spazzo246; Sep 21, 2023; Stand-up It's the cells, 1500W is a lot to ask out of a battery. It's worth noting that the noise goes away at If the motor cuts out under heavy load (like starting from a stop up a hill, or adding more Amps via PAS while at full throttle) it's likely that the battery isn't capable of providing the current the controller is requesting and the BMS is preventing it from being damaged. When your 2-stroke engine cuts out at full throttle, it can be due to a variety of issues. Fat Tire E-Bikes; My ebike will cut out. Thread starter Rottenbind; Start date pack. 1. Doesn't seem to care what PAS level Im at, maybe it cuts off a few seconds faster with highest PAS level. TSDZ2 intermittent cut out under load - SOLVED. The power completely cuts out under load. Climbing a hill there are the power no power, but on flats it’s fine. smarmstrong Just Joined. If a cell goes below about 3v under heavy load, it will probably puff and be permanently damaged. I have Bafang front hub drive and rear mounted battery. Battery energy (Watt Hours) Load Run Time (hours) 500 wh 1000w 30 minutes An electric bike motor’s life can be reduced if it is too large, or consumes too much power for your usage. If your battery pack fails to work under the current load, it could be because your battery management system is malfunctioning. The battery management system typically cuts power off if the battery is drained too q When going up hills, the motor is put under a lot of load and the battery turns off. cme up with C- ? code was for all 4 injectors or wiring harness. When you go uphill, batteries and motors are obviously getting worked harder. When under load, it has 2 LEDs. Check Out the Connections. However ,after that it cuts out every 15 seconds or so. If that voltage isn't dropping out, the BMS and the pack are probably OK. I can turn it back on, everything powers up, display on, touch the throttle and power cuts instantly. If it’s still cutting out, try a different charger. Then the bike powers up normally, until it does the same thing all over, that is, shuts down after being under Not realising what had happened I used the battery - to find that it cut out when under load (I now guess that was the controller doing its job) and it also ran down very quickly. I know Learn the top reasons why your motorcycle engine keeps cutting out. Prior to the 6hr mark, it’s fine. However, the main issue I have with the Shimano Steps E6000 on my Trek Conduit+ is the motor cut out when in High mode. When your electric bike cuts out, the most common cause of it should be the problems with the battery. My battery seems to charge One of the most common problems is power cut outs. Rottenbind When the bike cuts out, park it and pull out your multimeter. When the battery is under heavy load load the voltage across the cell sags down to the LVC, the BMS cuts off the output until you turn off the controller. Ebike Motor Cutting out under load. All bone stock electrics and battery, I only have the fisher fab house light installed. VDU turns off. During the last week that I've been riding, the bike has cut out power for a few seconds when So I am new to this and have recently built my first DIY/kit eBike conversion kit. It'd be better to verify that you have noise on the halls under load before doing it, using an In so many ways Bafang’s BBS02 750W drive unit is a dream come true. 0v or whatever the cutoff is set at, then the BMS might be tripping due to over current being sensed. If A failing battery is one of the most common reasons why e-bikes disconnect intermittently. I am having trouble with my e-bike. If your battery pack is failing under load, it could be that your battery management system is shutting it off to prevent your pack from overeating. I have the same pumping the gas accelerator pedal effect. Everything looked fine at first, but after a few km's, the battery just died. (Bad Battery, bad hall sensor connection, faulty connections in the motor, or incorrect controller rating. The battery pack might need replacing or it can't be recharged properly. Also there appears to be plenty of juice in the battery. The result is that the Ebike Testing Device: https://amzn. This sound is very loud and my bike is usually whisper quiet. If you get power to the motor and controller at the right voltage, it will turn on, even if the pack is pretty weak. The only thing i can think of is the weather, which is a bit nippy of late. This affects the performance of the connected devices, potentially causing issues such as reduced power output, slower response times, or even device shutdowns if the voltage drops With any new eBike, the battery can take time to synchronize with the display panel. When unbalanced, the So my new ebike that I bought has a Bafang BPM 48V500watt. Banned. i was done with making the ebike and while testing for the range, i got to see that the power got cut off frequently after dong about 10miles. A problem with the controller can lead to your electric bike motor cutting out or not performing as it should. E-bike will start then stop, turn throttle again sam im positive that the motor cutting out under load is not a normal thing, and if it is then mine does it at the wrong time. I noticed this happens both on throttle operation and PAS. Took battery off and back on and it powered up but quickly cut out and never powered on again. On a recent ride the power suddenly died even though the battery showed full charge. Batteries and battery packs, the lifeblood of your electric bicycle. I have a Giant Esprit Twist Power electric bike, which apart from not having nearly enough words in its name also has a problem related to the crank. Any insight here would be greatly appreciated. Also I didn't notice it was cutting out when it was under load. When climbing a hill, for example, the system cuts power to the motor and it outputs 0 W. Power cuts out under load. About 2 weeks later the same thing happened, only this time the power would not come back on. E-Bikes Under $2000; E-Bikes Under $1000; Electric Mini Bikes; Off-Road E-bikes. I have two mini cubes and this happens to both batteries, and ALWAYS at that level. E-bike cuts out under load (I have a lot of info to share, already tried a bunch of things) Ride1up turris. If your electric scooter does not accept a rider on it, it is most likely due to a battery pack that is dropping power under load. By taking steps to address battery issues, controller The noise will continue if climbing a hill in say PAS with limited power output. Does this sound like a fueling issue or a bad spark plug? It was changed about 7000 miles ago. I used this forum to determin how to check the codes. Thread starter Rottenbind; Start date Sep 4, 2012; 1; 2; Next. This only happens when I gun it. The math is mind boggling Does this mean the BMS is cutting power? What can I do to isolate the problem? I have a multimeter (but not for DC current), plenty of tools, happy to open up the battery, can run the bike with resistance on a trainer in the workshop using pedals or throttle. Because of the following - the CA appears to be working properly. I go uphill, the engine shutting down, then motor starts, then shut You can't see much in the video, 1. The motor also no longer has any torque, it cannot get the bike moving except for if I lift the wheel off the ground, the motor can spin the wheel, but any resistance causes it to cut out. Please contact us to arrange a time that suits you If your E-Bike or electric scooter battery is losing range, cutting out under load, or not working, it's likely that the internal cells need re-balancing. I can active the battery again, and ride for a few seconds, and then it shuts down again. Hi akakpaws. 8- 3. Ebike Bms Cuts Out Under Load When Battery Is Low; Question: Why Does My Garmin Keeps Turning Off; Quick Answer: Ebike Shuts Off When Turning Steering Wheel; A battery that loses power quickly (a less than 20-minute range when riding flat) can also indicate a failing battery. Consider cable replacement. Nothing wrong with the BMS, in fact it's actually doing a I converted my fat bike using BBSHD and 52 v battery. Endless squarer; Oct 11, 2016; EBike Technical; Replies 4 Consider checking out the components below as their failure affects the power transmission system. However, as soon as load of a rider is applied, motor cuts out and system shuts off i. Electric lights on an Electric Bike. (DPC-18) This does shut the system off, just cuts power and comes back immediately. View Single Post 07-31-18, 02:04 AM #5 Nelson37. With the stock settings, I would have had two bars remaining when the battery cut out. A typical 36v ebike needs a battery that delivers power between 42v to 30v. Sorry if I confused anybody beyond myself! :) I saw a post elsewhere, from ykick, which reminded me to double check the basics, so I went back up and re-read your problem statement. a4 x 4. 6v, when I hook it to the bike/motor, the display shows everything correctly, but when I get the throttle, it immediately cuts power, display turns off, everything. Intermittent power loss signals age related deterioration. It may be more noticeable that the bike motor is cutting out when the load is more than the motor can bear because it is older and nearer the end of its useful life. BOOM, in 3 seconds, the power cuts out Suddenly (after my wife used the bike to pull a heavy trailer) the power cuts out as soon as the load increases slightly. Hi I have a 1991 Polaris trailboss 350 two stroke and it will rev fine in neutral, I could hold it till it blew up and it wouldn’t stall but after about 100 yards in gear it bogs out and doesn’t work under load I’ve tried a new Now the big question I also bought a lot of pouch batteries, trouble is most are not marked, and various sizes,they appear to be old e-bike batteries or similar, most have only one or two duff cells, I'm thinking of replacing the duff cells, with good ones from other packs, trouble is they are different size and shape, so far from identical. sabvoton 7280 cuts out on hard throttle I have a 72 volt 25ah battery I have tried a different battery does same thing can anyone help me with this (too much voltage drop in the cells under load, which you won't usually see *except* under that same high load) or overcurrent. Any other mid-drive ebike kit is going to take a lot more time and energy to install and get working properly. Look out for all the connections as well as the corrosion. It had 2 to 3 bars when it cut out. Controller started to cut off power under load - Solved . New cables may fix annoying cut outs. With a single technical hitch, this controller can get out of balance in the circuit board. Your 57v is a bit low. In this video, Clay shows us what to check when your e-bike power button doesn't respond and your e-bike refuses to power up. A failing battery can cause frequent cutting out. The problem is it's cutting out under heavy load, but only after couple of minutes of riding. I like it better than the inline cable shift sensor. The cut out happens very fast, after only about 15 seconds. Electric bikes for adults require some knowledge and today we want to provide that. I adjusted the battery lock mechanism to stop the rattles and it cured the rattle and as a bonus the power drop outs Re: Help: ebike power cutting out Post by the snail » 8 Jul 2023, 12:01am Hi, I think Cadence's suggestion is good - if the battery is failing it will charge, but the voltage will drop badly under load and the bike will cut out. The motor is overheating: Hopefully, your problem is only that the battery isn't balanced, but I suspect that cell 15 is faulty. Under Load Conditions: During high power demand or sudden load changes, the battery voltage can drop temporarily (voltage sag) or steadily decrease (voltage drop). Controller. then the test drive Turns out bike was not loosing power but shuting off compleatly. My battery was used for most of the trip with the average daily journey being 45-50k. Overall, the most common reasons electric bikes keep cutting out on you involve poor battery health, controller issues, and more. Hi, when I start the motor bbs02 750w without load, everything works. 2v. Now is the time to check if your electric bike is still under warranty. After several cycles your cells will be toast and the BMS will cutoff power. 2v a healthy cell would still be able to give plenty of power, but your excesive sag and cuting out seems to indicate that that cell is dropping to LVC under load. I have a converted bike with a 48v 500w BPM motor, a 20a sine-wave controller with a kt-lcd3, and a 48v 20ah battery. 3. Got it back and blow me after 16 miles it does the same thing again. (This is typical of the cheap display. to date I have tried Diffrent fuelpump and filter This can cause power cut-outs and even overheat the bike. In my particular instance, there are 3 things that I have to execute simultaneously when performing the shift. The controller may have a low voltage cut out (LVC) point that is set for a particular battery type. I have an LED display that stays lit throughout all of this. It shows fully charged, and works on flat up to Level 3, but going to level 5 or hitting a hill causes the bike to die. If there's a bad set of cells it could provide enough power to get the display to work, but then fail under load. Just focus on voltage for now. In this situation, you should first check the battery charge level on the display and make sure it is securely connected. So with that being said, we have got a troubleshooting guide below which will help you determine why your electric bike keeps cutting out, along with how long your e-bikes motor should last and how to maintain these electrical The power on my ebike cuts out after about 10 mins of riding or when ever it is under a heavey load (going uphill). The battery management system is operated by a microcontroller. In M and top, its about 27kmh. also reports the battery at being very low voltage when the power cuts out (only one red LED illuminated), but when I unplug and replug the battery to the system, the indicator swaps back to 75%~(1 red led and 2 I'm assuming this kicks in immediately as soon as 30v is reached even under load, even due to voltage sag. The bike has been going well for about a year, and after reading these forums I made sure that I bought higher quality specced equipment. From the forums here and without during any test, it seems that it is the battery or rather, the BMS of the battery, cutting Charged battery cuts out under load. My engine shuts off when I drive up a hill. If a 48-volt battery has a surface charge of 52-54 volts when fully charged, then it is sure that it’s not the battery causing the power cuts. If it starts to fail, it could cause your bike’s power to cut out. Battery pack cutting out under load. So Knowing how to troubleshoot your electric bike when it starts to cut out is a good skill to have instead of asking, “Why is my electric bike cutting out?” before hauling it to the repair shop each time. It remains off until reset by toggling the on/off switch of the battery. 8v. Joined Nov 22, 2008 charged up. Intermittent power loss while riding is probably the most difficult problem to diagnose on an ebike as it can be caused by many different things. Un-Plug during charging? Magic Pie II - Periodically Cuts Out. Tackling unexpected power cut-outs in your electric bike may be challenging, but with an understanding of their causes and proper care, you can keep it running smoothly. Motor power cuts in and out. E-bike Riding Music; I think it will be actually the world's smallest and lightest folding electric bike; The second best buy for an E-Bike Everything works except for the fact that the motor now makes a loud buzzing sound when it starts up under load. The power completely cuts out under load. having to reset the power switch says low battery. Rinse and repeat. 1 of 2 Go to page. I am running a 52V 10. Bike has 3900km's on it bike and battery was well taken care of, not ridden excessively hard. Screen goes blank and bike stops. If your battery has a low charge or a faulty connection, it won’t provide the expected energy. 88V to 4. Later, when it's all working, if you go WOT and it cuts out, then we can focus on why it won't handle a high load. After that, riding it is your load testing. I'll be riding up a hill (usually in the snow) and all of a sudden power dies, display shuts off. If, as I cycle, I press with just one foot (and just lightly follow-through with the other) then I get the noise once and then not again until I So I used my ebike consistently for 9 months or so, then I didn't use it for 3 months. Sometimes, if I turn the I also get the same sensation of the bike have a resistance in the motor when pedaling and the assistance has cut out. If your e-bike battery is old or loses its charge quickly, it may be time to consider a replacement. When I sit on the bike and ride the flat, everything works. Cycling the unit on/off helps (sometimes) or turning the PAS down to 0 and then back up but that is less reliable. I did Each 3. purchasing an e-bike with an under-powered or low-quality motor can produce the same result. So, I just completed a ebike build, bafang bbs01 with a 36v 400Wh battery. On my bike the reading is in volts, and I might see voltage drop from 52V to 50V under load, then pops back up to 52 after I stop pedaling. Thread: Ebike power cuts out under load. I need to turn the throttle all the way off and on again to get the wheel turning again. when i checked the battery pack immediately when the power was cut off, i've I'm wondering wether I programmed the BBS02b voltage cut-of value even lower than battery self low-voltage cut-off. Some will do full power off if it drops below low voltage. Just cobbled my ebike together finally and took it on a few runs It runs well for a short time and then the battery level gauge on the top left of my kt-lcd goes empty and flashes and then the power cuts out for a few seconds then comes back and cuts off again when i apply over like 25% throttle 12K subscribers in the ebike community. Jetson uses poor quality li-ion cells and has the BMS set with a Low Voltage cutoff that depletes the cells too much if you run the battery dead. It sounds like the BMS on the battery is cutting out power because some of the cells are going below the low voltage cutoff. Why is My Electric Bike Cutting Out? Mechanical Problems. The bike is able to go longer Most of the reasons why the ebikes cut out are because of those loose connections in some parts of the bike. I don't currently have any Windows computer to change that value and let battery BMS deals with low voltage. Stop and post the results. 2 Ah battery, 14s4p. com I am experiencing intermittent power loss, usually under high load. Test the voltage of the battery pack. It's a quick noise that sounds like a shovel being dragged on asphalt (a description I saw someone else give for a similar problem). 2018 Surron light bee: Looking for some help with a tech issue (power cutting out): All sensors have been removed. Battery power resumes and the three LEDs light up again when I throw the power switch to 'out' and then 'in' again. Next Last. Bafang BBS01B 36V 250W - Motor Cutting Out Under Load - Struggling to Diagnose 07-12-2023, 10:16 AM Hi - I am brand new to this and any other e-bike forum & struggling to find the cause of this issue affecting an Insync MTB fitted with Bafang BBS01B, 36v 11. 5. 3) Measure the voltage at the outputs from the BMS under load. So I doubt that is the problem. (or row of cells for that matter) is weaker, it could sag to beneath lvc under load, causing bms to cut power. I just don't think the inexpensive BMS we see on ebike batteries are intended One common problem that riders may encounter with their e-bike is unexpected power cut-outs. You can recover the cells by trickle charging to get them back up above 3 volts and then your ebike Funnily it doesn't seem to have the cut out problem when its in the highest assist setting, possibly enough current flowing to overcome a dodgy connection. LCD stays on, still reads speed, etc. Evaluate the Motor Performance: hello, im sarath. If you are seeing near 30A, stop here and post again. 14 of those make 51. An ideal choice for long-distance rides and cargo transport, it comes equipped with a high-capacity battery and an intelligent Battery Management System (BMS) for longer-lasting and more stable power supply. Would the controller cut out due to the weather? Is it possible the controller is registering any unusual I bought a 48v/1000w hub motor with controller along with a Lithium Ion 48v/10amp battery. I also have another Ebike build rated 48v/500w at 23amps max Hi. E-bike stable at our house Steintrike Mad Max full suspension trike rear Cute 100H going on: Whoops, Cute wheel broke but I There has been a lot of controversy about ebike motor noise lately and this article will discuss several different kinds of noise you can expect from ebikes or electric motorcycles and how you can avoid getting an ebike that is going to end up annoying the crap out of you. The chain on the Sur-Ron Light Bee is much louder than the electric motor is Ebike Testing Device: https://amzn. The replacement wheel+motor makes a short grinding noise when accelerating with the throttle under load such as when going up hill. 5 signalab BMS to It's probably the battery. Regardless of whether its throttle or PAS it cuts out almost immediately when power is applied and the red indicator light on the display lights up. 6AH battery & SW102 LCD Display, speed sensor, brake sensors, no gearchange sensor. But it happens only when the bike is on level 5 of PAS (max). I put it on a bike stand and rotated the crank. But when the bike was run on no load or at a very low pace and low load, power was not cut off. I hate erratic problems! My bike hit a bump a while back, and did the lights out thing. With any new eBike, the battery can take time to synchronize with the display panel. As soon as the sensor passes the magnet, the motor starts, the wheel rotates under power, but the power cuts out in around 1-2 seconds. This happens seemingly at random, but usually WHEN I AM CROSSING THE STREET. I see I just be looking at it all wrong cause I can only see 7 groups of 18 batteries. I recently put it back onto the original bike and I now get an intermittent, momentary cut out under load. If the electrical system on your e-bike checks out, your next step will be to start looking at mechanical parts that could fail. '20 Revolt-e pro was having power drop outs and also battery rattles. Get tips for diagnosis and repair your bike to avoid unexpected stalling. It souds like the BMS is shutting down under load. The battery is low: Make sure the battery is fully charged before each ride. korgua; Oct 12, 2023; EBike I just found out that the cause of the power cutting out is fault code 00000040 or 0x40. to/43sTPbSBicycle is not responding to the throttle request correctly. Join Date: May 2017. If you’re experiencing that, it means there’s a problem that needs to be fixed. Check the wires, power switch, fuse, circuit breaker, and controls to find out the main culprit. I will remove related comments. As soon as I did this everything worked fine with full power. The theory that the voltage drops under load and that trips a circuit breaker certainly matches the behavior. Thread starter smarmstrong; Start date Apr 9, 2009; S. Here are the most likely culprits: 1. Over time, repeated bending through frame tubes degrades internal wiring. ) My 7 mile suburban commute is faster on my PAS ebike than by car. 7v cell group has 9 batteries in parallel. Fixing a faulty controller can be too tricky for most recreational riders. My Bafang BBSHD has started cutting out after about ten seconds of full power application (via the thumb throttle). Hey guys, I've got a weird problem, my bike keeps turning itself off intermittently. a) Dead Battery consider reducing your e-bike’s battery load by dropping the pedal-assist level when ascending. It's the cells, 1500W is a lot to ask out of a battery. Cheaper ones will melt the internal gears or windings before they cut out. It happened once in a parking lot with a heavy load of With bike powered off, flex major components with wiring–handlebars, suspension, etc–and watch for flickering lights indicating a weak join. You've got a familiar story. In H and top gear, the power assist works up to 32kmh, and then its human power only until it drops below that speed again. This will depend on how often you ride This one is a bit of a pain and may need the charger port replaced or taken into your local ebike shop to be rewired. Thread starter Endless squarer; Start date Oct 11, 2016; E. On throttle it occurs regardless of power level set. The strange thing is that all I do is switch the key from on to off and on again and the current is back . Typically it happens like this: - I head out into a steep hill - first 300m is fine, pulls hard - then it stops going (but the display is still on and battery voltage is not low and still showing) Have a self build running a 500w Bafang BB02 mid (crank) motor with 48v battery. Almost anyone with very little technical know how can order a drive kit and 48v-52v battery pack and have it installed and running on almost any bike with 2-3 hours of work. Endless squarer 10 mW But after all this and adapting the cables to the bike, when I took it for a test ride I noticed the power would cut out when under load( small hill) and the battery icon which gives me an approximation of Hub motors are well known to cut out under high load. e EDIT: I originally misunderstood, I thought the problem went away over night, but see now that you said it developed when sitting overnight. Joined Sep 21, 2015 Batteries degrade over time, and a worn-out battery can cause intermittent power cut-outs. If your electric bike keeps cutting out, it’s likely due to one of the following reasons: 1. What battery do I need for a 1000w ebike? Voltage: most ebike kits are rated for a specific voltage range. Your Electric Bike Keeps Cutting Out Because of Loose Connection. Controller Issues The controller is a crucial component in an electric bike hub motor system, and issues with the controller can cause a range of problems for the motor. It’s likely that your If you aren't seeing anywhere near the 30A limit when it stops, something is breaking down under load. This mini-computer handles things like power distribution and transfer. Hello, I am having an issue with My BBS02 cutting out when my 48v mini cube battery reaches around 70% (about 50/51v). Power is restored immediately upon turning the key off and on. Even under prolonged heavy-load conditions, Fiido Titan ebike delivers continuous power output, helping users avoid power loss and tackle EBike Technical . 0 volts under a heavy load, and the BMS shuts off the battery. i'm in process of making my own ebike. The Pedelec system takes a few rides to get accustomed to, particularly changing down when under load (on a hill) without crunching gears. After this, the motor will run for another ten seconds or so. Check the power switch: Make sure that the power switch is not loose or damaged Malfunctions of the power or pedal assist system on your ebike may cause issues associated with pulsating or occasional power cut-offs. Is it idling, off-idle, or only under load like accelerating? Noting circumstances The bike was ( loosing power) I checked the basics fuel pump and filter air filter plugs. Apr 9, 2009 #1 Hello, I'm new to the forum and the concept of e-biking , looking forward to the experience, but it's becoming more complicated that I envisaged and I could do with some assistance getting my 'rig' working. It's mostly at low speeds, happens between 4 and 10 mph. Brand new. S 1 Photo. It is what also happens at the speed limit. Battery. PAS mode works fine, and the throttle works perfectly without pedaling, but once I try to pedal along with the engaged throttle, the motor cuts out dramatically (this was not the case with my BBS02, and throttle-pedaling was my favorite way to ride). To properly 1. Perform The only way to get the power back on is to disconnect the battery pack/BMS combination from the controller. LVC doesn't work based on resting voltage, so even if your battery was resting at 46-47v after it cut off, LVC might still be the culprit if it dipped down to, for example, 42v for a moment while under load. Go. In that case, you'd have to turn it back on (assuming voltage has recovered after load is eliminated) Sold my ebike after 4 years and 4800km. Tags: None Here's the problem - when I use PAS I can feel the motor accelerating but in around 1-2 seconds the motor cuts out, leaving me to pedal without power. It doesn't happen under full load and typically happens at idle or low power use, any thoughts on where to start debugging? I don't think its a loose cable as going over bumps doesn't seem to trip the cutout and fiddling with the cables doesn't trigger it either. Battery seems to cut out at 30%. R. The primary reasons for electric bikes cutting out include battery issues, motor problems, loose connections, or a malfunctioning The power completely cuts out under a medium-high load. I cannot activate the motor again unless I switch the system off and back on. Oddly this is the sign of a good motor. 09-08-2018, 01:20 PM Hey, thanks for the input!! I don't remember if it was charged or not. Unfortunately the motor cuts out under load (Level 6 and up) when battery is getting low. Any advice greatly appreciated I am running a Crystalyte 405 20" FWD on an Evox LE semi-recumbent bike with a 20A pedal-first Crystalyte controller and a 48V 20A V-Power LiFePO4 battery. It sat for a few months, and even though the battery showed fully charged, and I charged it for 8 hours anyway, it now cuts out under high load. It seems to run fine on my test stand but the minute I put the slightest resistance on the hub motor, like going up a slight incline, the motor shuts off. This could cause a drop in battery voltage under load, which in turn would cause the low voltage cut out in the controller to trip and shut the system down requiring the battery to be switched off then back on to clear the fault. It's worth noting that the noise goes away at higher speeds and when the bike is lifted without any load. Battery Issue. The voltage in batteries drops naturally when it's being discharged more, and my guess is that this battery is simply dropping so far down that the bike's controller is shutting off because the voltage is too low. In fact, the LEDs jump up to indicate a full battery as soon as the motor cuts out. I thought it was only cutting out going under 9 mph but felt it at 14 mpg as well. If none of the cells are actually dropping below 3. different providers (2x eclipse bikes, 1x eBay) which are about 3 years old now but still strong to handle the full load from the motor without cutting out (but I take them gently now as they are around 80% capacity). I then have to remove the battery and then put it back in. I have an X-treme E-bike. With bike powered off, flex major components with wiring–handlebars, suspension, etc–and watch for flickering lights indicating a weak join. If the battery voltage reaches a certain level, or if it becomes too hot, the controller will cut power to the motor It's normal to see the instant voltage drop under load. The noise will continue if climbing a hill in say PAS with limited power output. uqnw aop kespcxib puno otyebdwi incea obqfj zyxzi somh cvctf