If you had a battery rated as 100 mAmp-hr, and it was in a circuit that had a current of 50 mAmps, how long would you expect the battery to last?
i think 2hrs
2006-09-25 09:49:16 · 3 answers · asked by Diggler AKA The Cab Driver 1 in Science & Mathematics ➔ Physics
Well 100mA-Hour mean that it should run for an hour at 100mA. It won't run for that long. AT 50mA theoretically will run for 2 hours but it really won't. You might wanted to get a more powerful battery say 200mA-hour might be a better battery to get. It is understood that you should only pull half the current that battery is rated for but I since you are pull such a little amount you might as well get more time out of the battery.
2006-09-25 17:35:52 · answer #1 · answered by DoctaB01 2 · 0⤊ 0⤋
The higher the current the shorter the battery last due to heat generated inside the battery.
If you draw 1 mAmp the batery might last for 100 hours but if you draw 100 mAmp the battery could not last 1 hour.
It is best to refer to the battery's characteristic from manufacturer.
2006-09-26 10:14:08 · answer #2 · answered by dwarf 3 · 0⤊ 0⤋
Ask yourself why ThomasF has got this right
2006-09-25 17:21:54 · answer #3 · answered by andyoptic 4 · 0⤊ 0⤋