How To Check If A Rechargeable Battery Is Good. Let me give you an example so youll understand how to check a rechargeable battery with a voltmeter. How do you check rechargeable AA batteries.
If not it is not rechargeable. Get a charger and charge the battery or batteries in question. For AA and AAA use a resistor of about 10 ohms or a small incandescent flashlight bulb in parallel with the multimeter.
For a AA AAA C or D battery set the voltage dial to 15V.
Get a charger and charge the battery or batteries in question. Get a charger and charge the battery or batteries in question. For a AA AAA C or D battery set the voltage dial to 15V. To see how these rechargeable batteries compared to each other I charged them according to each manufacturers instructions and then ran them down in two ways to simulate how batteries are used.
