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Is it ok to use a 5v 1A AC adapter for a device when the original adapter is supposed to be 5V 500mA - will it damage the device?
Yes - what matters is the voltage - it has to be the same. The device will only draws 1A as needed - the adaptor with higher amp,i.e, 2A is fine. As long as the adaptor has amps equal to or greater than those of the device, it will be ok!
Can you run a 4.3v device with a 5v power adapter?
Yes, you can run a 4.3v device with a 5v power adapter as long as the amperage of the 4.3 volt device is under the amperage capacity of the 5 volt adapter.
How many mA does USB 1.1 provide?
USB 1.1 port (5V power) current is limited to 500mA.
Can you use a 5v 1A charger for a 5v 500mA device?
No. In general, a charger needs to be able to figure out when the battery has reached full charge, otherwise the charger can damage the battery by overcharging it. You need to use the specific charger required for the battery. And, if you are trying to power a non-battery device that requires 1A from a 5V 100mA source, you will not be able to maintain 5V, so it will not work there either.
Will a 5V 2.5A adapter damage a device that requires a 6V 2A adapter?
No, underpowering will not "power" the device, it will not run. You must get an adapter that is 6V and (2A or higher) will be ok as well.
Can a 220v window unit run off 208v?
Actually it can happen with a T.V but windows only takes 5v , not more and not less. A tv can take min 200 and max 220. So never give your windows more than 5v because it is an electronic device and TV is an electric device.
How do you make a LED light?
A: Most LED needs a minimum voltage and minimum current in the right direction positive anode negative cathode to light up. Unfortunately the voltage can be as low as 1.2 to 5v and the same apply to the current from 5ma to 500ma. So there is no set values it depends on the device.
How do you make LED lighting?
A: Most LED needs a minimum voltage and minimum current in the right direction positive anode negative cathode to light up. Unfortunately the voltage can be as low as 1.2 to 5v and the same apply to the current from 5ma to 500ma. So there is no set values it depends on the device.
Can 5V 2A works with a device requiring 5V 2.5A?
No... the source does not have the required capacity. The device (sink) would ask for more current which the source will not be able to provide. Do not use this source-sink pair.
I have a 20mAh power bank with 5V 2.1A output, Can I charge my Realme phone which supports VOOC 5V 4A charger I know it will charge my device slower but will it harm my device?
لا يشكل ضرر
Can a 3.7v or 7.4v li-po battery power a 5v device without spoiling it?
Yes a 3.7v or 7.4v li-po battery can power a 5v device without spoiling it because P=IV.
Is there any danger to powering a 12V 200mA case fan via USB at 5V 500mA max?
If wired correctly, this will not damage the fan or the USB port, as the fan will take less current at a lower voltage. The main problem with this arrangement is the fan would either not start, or would run very slowly, so probably useless for cooling anything. If you can get a 5V fan, not more than 500mA, this would be much more effective. (Note- If wired incorrectly, reverse polarity could damage both USB port and fan, short circuit could damage your USB port.)
