Use batteries for digital camera - never sure if fully charges and have some of different Milliamp rating - this ws listed on package but not on battery. I want to separate by mAh rating.
Can get voltage checked on tester but unable to figure out how to test for mAH By way of example, an Energizer (non-rechargeable) AA battery has a rated capacity of 2,850 mAh (milliamp hours) at 1-1/2 Volts and 25 mA continuous drain.
That means that it should provide 1-1/2 volts at 25 mA current for 114 hours (2,850 / 25 = 114).
You can set your amp meter scale to 100 mA, and if the battery is pushing 25 mA you should read it easily. However, mAh is a measure of milliamps produced over a period of time (hours).
The only way you could measure that would be to load each battery at its mA rating and see how long it actually lasts before it's discharged.
Seems like a lot to go through. I'd just charge them all and carry a spare or two!
I don't know if that helps...I hope so. | 