Using higher voltage charger. Both devices charge via USB C PD.
Using higher voltage charger. No quality chargers PUSHES power to devices.
Using higher voltage charger They will usually shut down if they overheat, and also if the output voltage droops too low. Do Different Voltages Matter with Phone Chargers? Yes, different voltages matter significantly. Your device will only take the current it needs, and the charger will not force more current into it. On this 65W power supply on my desk, it delivers a maximum of 3. So because of this, we can say there is no problem using a power source/charger with higher amps (or the mathematically-related watts), as long as the voltage matches. 9A) ? To go more into the specifics: the laptop's battery is flat-out dead (if the charger is removed the laptop powers off instantly) but, for some reason, the battery is still needed You can use a cord with a higher amperage output than the input of your device. So eventually you reach a point where it's just not worth it anymore trying to boost charging speed with higher voltage while combatting waste heat and costs. Never charging the 4th one. Using a higher wattage power supplyYou can safely use a powe. Assuming a USB charger, so the voltages will be within USB standards. 3 V = 12. The reported charge pumps achieved the highest density and highest output voltages of the industry. Jul 30, 2024 · Using a charger with a higher voltage than what is specified for your device can be risky and potentially damage your device. This is typically caused by too high voltage. Can I Use Any Usb C Charger for My Phone Jul 30, 2024 · Yes, using a higher watt charger can potentially damage your device. You should also make sure that the input specification for the power supply -- what it expects from your wall socket -- is also correct. I charge my iPhone, airpods pro, iPad and Macbook with the same 96W charger Using a charger with the wrong voltage rating can potentially damage your laptop. if you charge with like 15 or 20 like an iPad charger overnight that'd probably be ideal for the laptop. I use laptop for the light task in the office. In fact, most people will use any random charger they come across. The outlets in your USA house are likely 120v (maybe 110 or 115 but whatever). Since the iPad can only accept about 20 watts, the charger will easily handle the load and will not ‘push’ anything extra. Jun 4, 2001 · LiI chargers go to great lengths to control the voltage seen by the battery, so no a higher input voltage will not translate into more current into the battery (up to some limit). The charger may deliver too much power to your device, causing overheating and potentially damaging internal components. Feb 3, 2023 · Batteries with larger battery capacity will require high charging voltage. An integrated high voltage charge pump circuit utilising intrinsic process features is introduced. You then get a new OP9 which supports WARP charging. \$\endgroup\$ – High temperature reduces battery life faster, so just keep your device at a good temperature and it will be fine. Some smartphones, like the iPhone, support a charging rate of up to 15W. The actual charger is inside the laptop. Chargers or power sources need to meet this. When using the normal charging function. Sure, it can work, but you have to be careful while giving advice without knowing all the details. Sep 29, 2023 · One immediate consequence of supplying a higher voltage than required is the potential physical damage to electronic components. Aug 2, 2024 · Using a higher wattage charger can potentially harm your laptop if the voltage exceeds the manufacturer’s specifications. A good way to look at it is that voltage is how much power the cord is "pushing" into the device while amperage is how much power the device is "pulling" from the cord. Obviously a 45W charger won't handle a gaming machine in full use, but a 65W charger should power -most- laptops fine, and a 90W should be good for all in normal/business use, except in a high power machine with a GPU when in heavy use for long hours such as Feb 14, 2010 · If the power source hasn't the ability to supply the current required, the power supply output Voltage will drop, the power supply may well overheat and burn out. A lot of high power chargers only go to their maximum power at 20V, so check for that. Feb 18, 2022 · ⚛️ The voltage and polarity of the power supply must match. Components are designed to handle specific voltage levels. Keep your laptop safe by using the right charger. Using a charger with a higher amperage will not do as much damage as using a charger with the incorrect voltage, so make sure to check that. Aug 30, 2024 · Older phones may not support higher watt chargers that use the latest standards, such as USB-C Power Delivery. It charges at 2A. The reported integrated high Apr 14, 2024 · FAQ on Phone Charger Voltages. If higher, the adapter just doesn't get fully utilized. you can use a higher amperage charger without issue. Alex King experimented with using an 85W adapter on a MacBook Air, and after only 7 months and 174 cycles, the battery capacity went down to 63%. 13", 15" and 17" MacBooks will charge with a 45, 60, or 85W chargers, however if you use intense processing on a 15" or 17" connected to a 60W or 45W charger the computer will still lose charge but at a much slower rate than if no changer is attached at all. I am wondering if the . Remember, this user wants to use an unknown quality adapter at 100% capacity. You can also use a higher wattage charger for your laptop, but it has to meet other specs like voltage and polarity. But is that safe? Can I Use A Higher Watt Charger For My Phone? You can use a higher watt charger for your phone. Mar 7, 2020 · I am wondering if it is safe to use a MacBook charger on my Lenovo laptop. Bc if you use a laptop and charge a laptop at the same time, the adapter must deliver more power. If its higher, the power supply will overheat and eventually die. 5V output. 1 V battery (composed of 3 cells in series) has a real voltage of around 3 x 4. , burn it out) and possibly the la Nov 5, 2022 · Using a lower wattage charger might seem safe, but it can actually cause problems with your power supply. A charger with a higher voltage can produce devastating results. Now more advanced; USB is a set of standards for data and power. Power supply usage is to charge battery and support voltage to the laptop. 5V 9. You should be fine. Now with that said. But using a charger with too high current won't damage your laptop. Still Jul 15, 2014 · This paper presents a new functionality for high-power battery chargers by incorporating an impedance measurement algorithm. If you need to use a low voltage power supply, make sure the charger is designed for low voltage and use it only as a last resort. but it's not that big a deal, fast charging isn't the greatest but it won't hurt you much 👍 You wouldn't want to use a charger that's rated for something like 10x the current/wattage of the original one, as the voltage regulation might be poor at the relatively low currents being drawn. Since the P51 requires a 170 watt charger at minimum, one that's half the power probably won't do much at all. Has anybody tested charging an ASUS laptop with a higher voltage before? Voltage has to be the same Maximum output current may differ: If lower than required, the device may charge slower or even discharge during use or not function without battery if such use is desired. Using a charger with too low current rating might fry the power supply, but not the laptop. And Im using an extender USB cable on it. For example, a connected USB-C hub will typically draw 10W to run the hub, plus other connected devices (e. Aug 30, 2023 · Generally speaking, charging stations with higher voltage can deliver more power, which often leads to faster charging times when compared to chargers with lower voltage and higher current. If the voltage is correct, the amperage provided by your power supply or charger is almost guaranteed not to damage your device. Many supplies can support a high peak demand for a very short duration, but their sustained supply capacity will be much lower. 25 * 20 = 65. It needs 19V and I have a different charger available that has a 19. However, most of us have not thought about the long-term effects of using chargers with different power wattages. My 2 cents: Don't use a higher voltage charger on that machine unless you're accepting the risk that you'll damage the motherboard and render the laptop unusable unless you know how to do Surface Mount soldering and have the knowledge to read electrical schematics to trace the faulty component(s). with those famous round connectors used for electrical music instruments) stating it outputs e. Most laptops will need between 45 and 10 watts of power, so if the charger provides less by any chance, don’t use it. Oct 8, 2020 · The power rating of a charger has no bearing on the life of the battery nor the consumption of power by the device. Current MacBook airs use a 35 Watt power supply, whereas MacBook Pros use a 60 W power supply. Battery Damage; Reduced Battery Lifespan; Risk of Overheating; Safety Hazards (e. You can use this one too but it will likely affect your battery life in the long run. Sep 26, 2024 · Secondly, modern devices that use high-power charging constantly monitor their internal battery state, checking that the voltage and temperature remain in the safe operating zone. It’s important to understand the compatibility between your charger and your device to ensure safe and efficient charging. With higher pack voltage, the charge voltage is of course also higher. Power is balanced not just because of power provided by charger/battery, but also heat generated - power=heat. So it is OK to use a charger that can supply more current, but not the other way around. The charger is large and bulky. All in all, I guess that the laptops will as well charge with 5V (on USB A charger), just far slower. 3A. Will using a 61W charger, or anything stronger than the power brick Apple gave me in the box, damage the device? Or, are devices (Apple specifically but I'd like to know about all in general [speakers, hard drives, etc]) smart enough to limit the watt/ voltage intake to not damage the device, yet be better than the stock. Stepping down higher voltages hurts efficiency, increases heat and requires more/beefier components. Wattage = current X volts So always use the same voltage power supply with equal or higher current/wattage output. But if you can't find the same, then choosing the right one is important. Any device will only draw as much current as it needs, so long as its power source can supply it. It safer to use something under 20W. This is because the charger will be operating at a lower output level, which may lead to slightly higher energy losses and increased heat generation. When inundated with excess voltage, they may experience arcing, where electricity jumps across circuit components, leading to irreversible damage. 0 (2008): 150 mA for low-power device; 900 mA for high-power device; Battery Charging specification 1. 9 V when fully charged, which is higher that the maximum voltage of your NiMH battery. Nov 2, 2024 · It’s worth noting that using a higher-power charger with a device that doesn’t support fast charging may not provide any benefits, and may even be less efficient than using a standard charger. Feb 13, 2024 · Avoid using a higher voltage charger unless explicitly stated as compatible by the laptop manufacturer. Battery type affects voltage in charging because of the varying charging characteristics in different batteries. Evaluating The Impact Of Using A Higher Voltage Charger On A Lower Voltage Laptop I would definitely mention that this is how USB Power Delivery chargers work (or other smarter solutions), which support voltage negotiation. Restarting the device can help it recalibrate and correctly identify the charger being used. You are fine to use that charger with your iPad. Just make sure the charger is from a good brand and is in good condition. Damage risks: Using a charger with significantly higher wattage than recommended can potentially damage your phone’s battery or other components. Laptop power supplies are normally very well designed, and do not break if you try to pull current more than the rated value. You can use a 65w charger but you likely won't yield faster charge times, since the connect port will only draw the minimum required. And not every Type-C cable ensures reliable power transmission. You can leave the battery if you only use the laptop on battery power. If you want to learn all about using a lower or higher wattage charger Most consumers pay very little attention to the kinds of phone chargers they use. Good news is that a 36v lithium ion charger shouldn't be very hard to find, like this one. Could this damage the sensitive internal electrics in the longer term - or is it unlikely to make a difference. (Watts equal volts times amps, so if you have a 65-watt power supply that's Nov 9, 2021 · It means that your 11. So if the cord pushes too much power, it can burn your circuit. But the The charger wattage is how much power it can provide, it's like the amount of weight a truck can carry. Jun 3, 2021 · ⚜️ Chargers and power supplies come with different Voltage and Amperage ratings. 23A, Meaning higher voltage will damage the component inside especially on IC. You can safely use a power supply rated for higher output wattage as long as the output voltage matches and the polarity of the connector is correct. . There are 2 different scenarios-higher wattage charger and a lower wattage one. And based on what I saw from Apple for their new Macbook, the charger is 29W, so most likely a Profile 3 (a bit under spec), it seems then to be only 12V. Using a charger that has more output amperage than the device need is always the best way to go to charge your devices faster and the overall health of the device. It will not increase the voltage higher than approximately 4. Jan 23, 2024 · Solved: Given the included 18w charger takes a long time to charge the Quest 3, can we get a higher wattage charger to get it done sooner. Using a higher wattage charger is perfectly safe. The rule is that you need to match the voltage, but you can take one that can put out the exactly needed or higher current than the laptop needs. While it may seem harmless to use a higher watt charger, there are a few potential risks involved. 55 more. The SB2 without dGPU came with a 44w charger so that's what you should be shooting for. Current is drawn, not pushed. Remember, USB is standardized. Nov 16, 2023 · Can a higher voltage charger damage your phone? While a higher-wattage charger is safe, voltage compatibility plays an important role in influencing your phone’s health. If the current is too low it responds by increasing the voltage until the current is at the target level. This can lead to overheating, short circuits, or even permanent damage to the internal components of your laptop. , iPhone, card reader, wired fast charging with a high wattage (61 is pretty high) isn't great for the battery long term. This is not an issue. Both devices charge via USB C PD. though most laptops know this and they'll slow down the charging at times to preserve the battery. Sep 18, 2024 · In such situations, we might have to use chargers with different power and voltage ratings. The lower voltage means that the battery isn't charging - but my concern is the higher current - 0. Not all Type-C ports can be used to charge devices quickly or at all. If your phone supports fast charging, using a charger that is rated Jul 28, 2017 · 500 mA for high-power device; Battery Charging specification (BCS) 1. Example - 140w charger, laptop takes 100w max. These 2/3A are 1200 mAh. 4 V, whereas lithium-ion batteries require 4. Think of it is terms of a water hose/pipe: Even if you have a 10 inch pipe but hook up a showerhead to the other end, you will only get from the showerhead, the normal flow. I have been searching google for 2 hours trying to find out what happens if you use a higher Voltage setting in a smart charger, like the 10 cell 14V with 9 NiMH cells that should be charged with 12. Jun 5, 2023 · Exceptionally good chargers are not common and these cost very high. One of the main risks of using a higher watt charger is the increased chance of overheating. The ones that came with it ought to be sufficient, and a larger capacity one probably won't help. Nov 15, 2024 · In many cases, if the voltage is sufficiently different, then yes, the device could be damaged. I personally use a 65W Baseus GAN charger, but at 15V it only does 3A, so that specific one wouldn't help you. Standard phone chargers typically operate at 5 volts, providing a steady and reliable voltage output for charging a wide range of devices. Dec 16, 2024 · Using a charger with a significantly higher voltage than required can damage both the charger and the device. I also use my switch and that one won't charge even one bar. Nov 10, 2024 · Using the Wrong Laptop Power Adapter: Risks and Consequences. Using a low voltage power supply can damage your phone. These power stations can emit electromagnetic fields (EMF) that may potentially interfere with sensitive medical equipment. 20 volts is 5% more than 19v, and within (or right at) the typical tolerance of power supplies and input voltage specifications. - 1093066 This website uses cookies. Always consult the laptop’s user manual or contact the manufacturer for clarification if unsure about the charger voltage compatibility. 5 A for charging ports; USB 3. Jan 8, 2017 · Most of the technical power supply give the minimum spec to its product. Dec 20, 2023 · Using a higher current charger (than the laptop is rated for) will not cause damage to the laptop; as stated earlier. It ouputs 5 volts 2 amps. 25 amps at 20 volts, so 3. Using a laptop power adapter with incorrect voltage or current values can potentially damage your laptop. Amps and watts have some flexibility. A lower wattage charger will either charge the battery very slowly, not charge at all, or might not even keep the laptop powered on. Measurements show output ripples of 400 mV for frequencies around 10 MHz and output load of 28 pF. you would be more than safe to use a 1500W high performance power supply Jun 24, 2024 · The Potential Risks of Using a Higher Watt Charger. Oct 31, 2022 · However, using a higher-power adapter does lead to the battery charging more quickly, which puts more strain on the battery, leading it to wear out more quickly. And that one will charge it to half way then kinda just sits there at 3 bars. The MacBook charger has 20. Devices won't take more than they need. Say you have a OP5T, which supports Dash charging. 5 volts and at least 4. Otherwise the charger will default to the highest supported charging rate. You can use the Quicko even with 12V power, the tip will just heat up slower. Here’s why: Voltage. So, what happens if yo use a higher voltage power supply? Here’s a closer look at why straying into the realm of higher voltage can be a grave misstep: Physical Damage to Components If the charging port is USB it would be safe to use a higher wattage charger, but it will take only what it can. Maybe your charger isn’t showing the watts, but if the amps and the voltage match well, you shouldn’t have an issue. Always use a charger that matches your battery's voltage specifications to ensure safe and efficient charging. At home, I use a variable Voltage and current supply to monitor and adjust charging curve against time to match aging characteristics of the battery. What Are the Risks of Using a Higher Voltage Charger on a Lower Voltage Battery? Using a higher voltage charger on a lower voltage battery can lead to significant risks, including potential damage to the battery and safety hazards. There is always greater risk of using a higher powered adapter, though. Sep 29, 2023 · What Happens if You Use a Higher Voltage Power Supply? Adhering to manufacturer specifications is paramount when it comes to power supplies. It can produce +20 V to +50 V output from a typical 5 V input. It's always better to have a higher wattage power adapter than a lower one. Most smartphones support a maximum of 10W of charging power, so a charger that is rated at 10W should be able to charge most smartphones at a fast pace. Using a higher wattage power supply. Dec 26, 2023 · Common voltage ratings for phone chargers include 5 volts for standard chargers and higher voltages for fast chargers, such as 9 volts or 12 volts, designed to expedite the charging process. 2 V per cell, though. Using higher amperage. Feb 11, 2024 · Devices have a specific voltage requirement to charge. Oct 18, 2022 · Can I Use a 15w Charger to a 10w Supported Mobile. Not as important (for damage): amps or watts. So even if you use a charger with a higher wattage than what the device needs, it won’t use more than it can handle. I also have a anouther fast charger by Samsung. , fire, explosion) Warranty Issues 1 day ago · Safety Considerations: High Power Chargers and Medical Devices. It's actually ~39w for the Surface Connect port and an additional 5w for the USB port. 62 amps, that should be fine. I would think that my laptop should be fine with the slightly higher voltage, but I'm also scared to fry it. Higher amperage means faster charging. You will likely just get a slower charge since there is less voltage going across the line. With DC (round power ports) it is very very very unadvisable. 2 V for each cell. Let’s take a closer look at the possible consequences: 1. 24W (12V 2A) won't support any voltage negotiation and may damage devices expecting a different voltage. This is because the device only uses the wattage it can take or needs. May 20, 2021 · \$\begingroup\$ During the CC portion of charging, the charger senses current and maintains it constant. For instance, lead-acid batteries need a charging voltage of approximately 14. Jan 16, 2013 · There is little risk of physical harm occurring if you use her adapter on your computer. If the charging port is USB it would be safe to use a higher wattage charger, but it will take only what it can. Reset or Restart the Device : Sometimes, a simple reset can resolve glitches. What are the risks of using a higher watt charger? Using a higher watt charger can lead to overheating, reduced battery life, and even pose a safety hazard. Make sure your phone is compatible with the charger you plan to use. While most smartphones operate on a standard voltage of 5 volts, using a charger with higher voltage can significantly damage your phone. The faster you charge a battery the more heat your generate and this is harder on the battery. A higher wattage charger only means it can supply up to the specified amount of current, not that it will push that amount of current to the device. The charging speed of a device is also affected by amperage. Sep 22, 2022 · To be safe, always use a quality charger from a known manufacturer and use a power supply with a high voltage. The charger will supply however much power the iPad asks for up to its maximum capacity. 2 (2010): 5 A for charging ports; And subsequently USB Power Delivery (PD) since 2012, which use negotiation protocol on power pin to On the back of your laptop somewhere it should be written its current/voltage requirements. 25A. An arbitrary charger (e. By clicking Accept, you consent to the use of cookies. Your battery is only compatible with a charger of specific voltage and amperage AND it must be a lithium ion charger, no lead acid charger. I am not sure if Sony does give an official charging adapter specs anywhere but from what I have read 20W charging is the sweetspot for XM4. Travelling, I use chargers with a display and Voltage adjustment slider to prevent overcharging at high levels for my two laptops. The circuits are likely 15a or 20a. Jun 11, 2022 · It is perfectly safe to use any certified charger with higher wattage on your phone. Individuals with medical devices, such as pacemakers, must exercise heightened caution when using high power charging equipment. A higher amperage charger will supply the power the device needs Apr 8, 2023 · Can I use charger with a higher voltage than my laptop requires ?Using a Higher Voltage Charger for Your Laptop: Is It Safe? #laptopcharger Can I use a charg What could be the consequences - positive and negative - of using a replacement supplying more power, with the same voltage but slightly higher amperage (19V/3. If you don’t need to fast charge your device then use a basic 5W charger. The laptop charger he describes is likely only good for a few amps, and the output voltage is probably dropping massively when it is connected. 0 (2007): 1. But only a 2-3x difference in current/wattage is fine. I' Apr 15, 2022 · A higher ampere charger charges your device’s battery faster than a lower amperage charger. 2V - 4. That is, if you went to a lower-current charger and the laptop tried to draw more current than the low-current charger can supply, you would likely damage the charger (e. g. That includes blowing a fuse and ruining the circuit boards. Apr 22, 2020 · Make sure you're using the correct power adapter and cable for your Mac. However, the laptop adapter's voltage is a full volt above the specified 18 V; this will cause more current to flow into your device, since the voltage has been increased. Mar 12, 2016 · All MacBooks will charge off an 85W charger with the correct MagSafe connector. That means your new charger needs to be able to supply more than 3A at the 15V that the steam deck requests. Aug 3, 2012 · The current rating on the charger indicates the maximum current it can supply. As previously mentioned, high voltage (rather than high current) helps to minimize the energy losses associated with resistance in the charging cables. A lower voltage may result in slow charging, and a higher voltage could damage the device. If your device takes more than the charger can provide, the voltage will drop and some devices don't like that. Battery Type. Even if your device survives, the higher voltage will shorten its lifespan. The higher voltage can cause overcharging, resulting in overheating, swelling, or even explosions. Too High: Supplying a higher voltage than your laptop requires can overload its circuits and cause irreparable damage to components. As long as the tip is right (fits and has same polarity) and the voltage matches you will not burn up your laptop with a higher amperage charger. Transmission and distribution lines use much higher voltages that homes and businesses, precisely because they need to carry large amounts of power. So can I use lower wattage-rated chargers with the same voltage and lower rated current to charge it? The USB C chargers have 100W with 20V and 5A current. But if the substitute power adapter has a high voltage output (& they typically do), then the input voltage could be more than 10% higher and out of spec for the laptop. The polarity of the charger is the same. A faster charger can deliver up to 5A with the same 42V for 36V. It certainly wouldn't hurt anything to use a higher capacity power adapter but it won't charge any faster with one. To get any sort of fast charging, both devices (device being charged and the charger) have to support the same standard for fast charging. The difference with a conventional multimeter is that the megohmmeter applies a much higher test voltage, which is suitable for high insulation levels. And yes, charging faster does degrade the battery faster in most cases. It depend on you brand of laptop. If you find a power adapter that supplies 19. Minimum spec or standard spec provide is 19. Without knowing the circuit and the maximum input voltage it can tolerate, it is better not to try it. 6V. What Happens When You Use a 48V Charger on a 36V Jan 30, 2023 · So, make sure that they match or that the one on the charger is higher than the one on the laptop. The measurement of battery impedance can be performed by the battery charger to provide an accurate equivalent model for battery management purposes. If your laptop charger is a good one (not a cheap clone), there's no problem on doing that. Its current needs are always lower than what the power supply can deliver. Plugging a high powered USB charger in to a phone will charge the phone at the highest power the phone requests. The base USB spec has some specifications as to how power can be delivered. 2 increase in voltage with the MacBook charger should be cause for major concern. Feb 11, 2024 · The answer is that as long as the voltage and polarity match, using a charger with a higher amp rating than your device requires won’t cause you any problems. As for the wattage, even if your charger can charge up to 100w, if your phone only supports 45w, then that charger/phone will only supply/receive 45w, so it's also fine. If the power source has more than the required current, it should work quite nicely, It won't stress either the power source or the device being powered. When looking at the voltages I can see that the Lenovo adapter is 20V - 3. For non-electricians, here is a metaphor that may be helpful: Power-supply <=> water-pump Amps (current) <=> water-flow (gps) Volts <=> water-pressure (psi) Watts <=> Watts (power) I have a laptop with a charger rated for 240W, 20V, and 12 A current. Dec 5, 2022 · Using a higher wattage Power Adapter will offer no additional benefit for iPad charging, but does provide additional power capacity for other connected USB accessories which draw power from the USB bus. The laptop draws the power rather than the charger pusing it. May 25, 2011 · Note that what the guy in the quote is doing is not applying a high voltage to the cells, but applying a high charge-current to the cells he is referring to. It is more important to ensure that the charger in question is certified. Apr 10, 2022 · In conclusion, it is perfectly fine to use a higher amperage charger than what your device originally came with. In this paper, an extended control capability of the onboard battery charger for electric vehicles is used to measure the The only thing that will damage the laptop is wrong polarity, or too high a voltage. Can I Use a Charger with Lower Voltage? Using a charger with lower voltage than required may not be harmful but can result in slower charging times, sometimes insufficient to charge the device while it's in use. Mar 12, 2015 · Coupled with higher voltage, that gives a lot higher charging power. Idk why the eta changed. No quality chargers PUSHES power to devices. Similarly, I would not be surprised if the laptop immediately regulates down whatever voltage comes in from the supply. Dec 4, 2023 · Charging a 36V battery with a 48V charger can lead to severe consequences, including battery damage and safety hazards. Basically every device that needs charging PULLS power from the charger. You couldn't just charge a battery faster by supplying higher voltage or current. – USB's default 5V input voltage is perfectly suited for charging here. Overheating. Voltage is pushed by the power supply; amperage is pulled by the load. The computer can't "take the required voltage," meaning, if you connect up a 100 volt power supply, the laptop can't decide to use 20 and throw away 80. Nov 5, 2005 · Re: Need help with best charger settings please Thanks for your note. I am buying one for myself too and going to use an old samsung 15W charger for them. If it works, which it does - could I confidently continue to use this until I've sourced a proper replacement? Dec 23, 2024 · Not every USB-C power supply is suitable for every device. bcqyogwzswzumdhcerddpfqcrzixnethgcpslylarzyauvvwzlgbfki