js5895 said:
Hi,
Can I test AAA, AA, C, etc. batteries to see if they're good, like car
batteries.
Check the voltage and get for instance, 12.8v(100%), 12.5v(50%), 11.8v(10%)
If so, do I put a load on it while testing? Like a light bulb.
Thanks.
Curiosity is good. You should do whatever it takes to satisfy it.
But, the only load that makes sense in testing batteries is the load
that you are gonna apply. Batteries destined for a digital camera
need to be tested at high load. But that would give pessimistic readings
if you were gonna use the batteries in a clock.
For a quick check,
Stick 'em in a flashlight and see how dim it is.
Used to be able to buy batteries with a built-in tester. Peel that off
and use it. Can't find any in my battery box. Not sure they make 'em
any more. Expect that function cost way more than people were willing
to pay.
mike
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