C rating. This is a rating of how fast energy can be discharged (or charged) from (or to) a battery. The C rating allows us to see how many Amps (A) of current can be pulled from the battery continuously. The Amps are calculated by taking the mAh capacity of the battery, diving it by 1000 to get the Ah, and then multiplying it by the C rating.

For example: A 1300 mAh battery, with a 35 C rating, will provide 45.5 Amps. (1300/1000) * 35 = 45.5

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