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When you buy a battery how can you tell which one contains the most energy?
Wiki User
∙ 13y ago
Batteries often have some kind of declaration of the Ampere-hours that they can store. Small batteries are often graded in milli Ampere hours [mAh]. The larger the number , the more power they store. If the battery does not declare its capacity then you will have to try it out in your application.
Remember that different types (chemistry) of batteries are good for different load patterns. One type might be good for delivering a lot of power over a short time (starter motors in cars use lead-acid chemistry) another type such as running a clock or hearing aid uses very little power but over a very long time (silver oxide batteries are often used there).
Wiki User
∙ 13y ago
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Have a shop load test the battery.
