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BrianG · 06.24.2009, 11:11 AM

Nope. That formula will always give you 1 as the answer. (Ah*1000)/mAh=1.

There is no way to calculate C really. The C is a capacity multiplier to get a total discharge rating. And, you'll need to determine an end voltage. As the current load increases, the battery voltage will drop. If you are happy with 3.2v/cell at load, then just measure the current at that voltage. Then, divide that current by the Ah (or mAh*1000) to get the C rating.

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	06.24.2009, 11:11 AM Nope. That formula will always give you 1 as the answer. (Ah1000)/mAh=1. There is no way to calculate C really. The C is a capacity multiplier to get a total discharge rating. And, you'll need to determine an end voltage. As the current load increases, the battery voltage will drop. If you are happy with 3.2v/cell at load, then just measure the current at that voltage. Then, divide that current by the Ah (or mAh1000) to get the C rating.