2007-05-17 09:16:43 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
The higher the amperage used, the less of the available power will be usable.
2007-05-17 09:25:16 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A battery's capacity is rated in Amp-hours. If you use a battery at it's rated current, you should expect to have at least 90% of the terminal voltage available for the given number of hours in the rating.
Ideally 'amps' multiplied by 'hours' should be constant. That is, if you double the amperage you should get it for 1/2 the time -- if you drain 10x the amperage you should get it for 1/10th the time. It doesn't work that way. If you drain a battery at 10x the rated amps, then you will almost always get much less time than 1/10th the rated hours.
Battery manufacturers publish specification sheets for their various batteries, and these spec sheets show discharge curve 'families' for different discharge rates.
Going the other way (less current), you usually get more than the rated time for a given current (less than the rating).
.
2007-05-17 09:29:13 · answer #2 · answered by tlbs101 7 · 1⤊ 0⤋
You need to specify whether you are talking about a rechargeable or non-rechargeable battery. Obviously "life" has a different meaning for each. For a non-rechargeable battery, it's "life" would constitute a single discharge cycle, and obviously, the higher the discharge current, the shorter the "life". For a rechargeable battery, it's "life" would be mostly related to the number of charge-discharge cycles, plus probably a number of other factors, depending on the battery's technology. So, in this case, it's mostly impossible to say how discharge current might affect it's "life", at least until all those conditions are defined.
2007-05-17 12:57:46 · answer #3 · answered by Anonymous · 0⤊ 0⤋
A battery is a chemical pump of electrons. Once the battery is hooked up to a circuit the electrons can flow. Unfortunately the chemicals get used up in this process and become exhausted in time. The higher currents the battery provides exhaust the chemicals that much faster.
2007-05-17 09:39:10 · answer #4 · answered by Kevin R 1 · 1⤊ 0⤋
the more amps used, the shorter the battery life
2007-05-17 09:19:22 · answer #5 · answered by Lobster 4 · 0⤊ 1⤋
in theory but all conditions temp ,draw recharge intensity many things contribute to deteriation ,spelling ? MORE COLD CRANKING AMPS THE BETTER
2007-05-17 09:27:18 · answer #6 · answered by bear 1 · 0⤊ 0⤋