For the typical flashlight battery (AAA, AA, C, D), all of them are 1.5 volts, but how much current do they offer?(I'm guessing it's around 100 to 150mA, and it varies according to the type of load that's on it).And does it differ according to the battery size? (does a "D" cell offer more current than an "AA"?) or is it just that the D lasts longer?

It depends. For AA cells, the digital cameras draw more than a half ampat times. D cells can handle much more than an amp. If you want thebatteries to last longer, then the current drain should be less. We'retalking about alkalines here.

How much current does a flashlight battery offer?

Sep 02, 2004 21 Replies

Rate this thread:

Ken Smith 21 years ago

In article , Ken Weitzel wrote: [.. about mAH ...]

No, think of it more like "useful volume". A paper thin electrode has to have more area than a slightly thicker one. Its how many atoms you can change the chemical condition of before the battery runs out that determines the mAH of a battery. The active area is more important to the max current numbers.

-- kensmith@rahul.net forging knowledge

Vote

The Phantom 21 years ago

I opened up a current production AA NiMH and measured the thickness of the two wrapped up plates. One was .02 inches and the other was ..035 inches thick.

Its how many atoms you can

Vote

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required