No, amps do not have to match, but the power supply or charger must be able to supply enough amps as required by the device being powered or charged.
Is it OK to use a higher amp charger?
Yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed. Since the voltage is held constant [5V], the only factor that determines current draw is the load [another term for resistance] the device places on the charger.
Can I charge my laptop with a lower amperage charger?
It is possible to use a lower amperage charger to run and operate your laptop, but may not able to simultaneously charge the battery..
How many amps does a laptop charger need?
Most likely, all you will need is 5 amps. Look at your laptop power adapter [the black brick]. On the backside it should tell you what the power draw is in amps. Most likely its 1 to 2 amps.
Is it OK to charge laptop with different charger?
The short answer is; No. You should never intentionally use another laptop’s charger on your laptop. Plugging a different charger that isn’t meant for your specific model will not lead to anything good. In fact, it may immediately, if not eventually, fry your battery and you will have to get a new one.
Do amps matter on laptop chargers?
Distinguished. Input amperage, power supplied to the charger from the utility company does not matter.
Can I use a charger with higher amperage than the original laptop?
Yes, Your laptop has been designed to draw up to a certain amount of power when running at full power. This means that you can quite safely use a charger with a higher wattage [or amps] rating as the laptop will only ever draw the amount of power required at the time. Jul 2, 2019.
Can I use 5V instead of 3V?
There is not such thing [or there should be no such thing] as a 3V USB anything USB is 5V, and always will be. It is a standard that all devices must comply with. This means that you should not be able to find an AC adaptor to 3V with USB, If you do find it, don’t buy it.
What happens if you use the wrong wattage charger to charge your laptop?
If the wattage is higher than your original charger, the laptop will charge just as fast, if not faster, than with your original charger. The laptop will consume as much current as it is designed to.
What happens if you use the wrong charger on a laptop?
Using a charger with the wrong voltage rating can potentially damage your laptop. This is typically caused by too high voltage. But using a charger with too high current won’t damage your laptop. Using a charger with too low current rating might fry the power supply, but not the laptop.
What happens if I use a lower amp charger?
If you get a charger with amperage less than your original power supply, you risk overheating your charger, burning it and in many case your device will stop functioning and/or charging.
How many amps is my computer using?
Ratings of commonly used household appliances Domestic Portable Appliance Amps Used Watts Used Desktop computer 1.3 Up to 300 Television 55” UHD