4sevens
Flashlight Enthusiast
Hi...
I'm interested in the typical internal resistance of NiMH batteries and how to measure it.
Specifically, I'm testing the Rayovac IC3 15 minute AA and AAA's
and I would like to see how they compare with other NiMH's.
This is what I have done so far. I've tested the AA's with
2000mah and AAA's with 800mah.
By shorting the battery with a meter measuring current up to 10A
I find the AAA with give 6A and the AA gives almost 7A.
If I calculate using V=IR I get about .25 ohms.
Is this the right way to go about it?
David
I'm interested in the typical internal resistance of NiMH batteries and how to measure it.
Specifically, I'm testing the Rayovac IC3 15 minute AA and AAA's
and I would like to see how they compare with other NiMH's.
This is what I have done so far. I've tested the AA's with
2000mah and AAA's with 800mah.
By shorting the battery with a meter measuring current up to 10A
I find the AAA with give 6A and the AA gives almost 7A.
If I calculate using V=IR I get about .25 ohms.
Is this the right way to go about it?
David