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I have a Motley Crue and lots of 4S batteries for my Revolt, my question is if I run two 4S 30C 4200mAh in parallel in my MC will I have 60C and increase my run time?
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C rating is a coefficient to calculate constant available discharge rate. If you ran 2 4s batteries in parallel you would have a total capacity of 8400 mah or 8.4 amp hours. To calculate maximum constant discharge rate take total capacity in amp hours (8.4 in your case) and multiply it by the c rating of the cells (30). This gives you a constant discharge rate of 252 amps. An important note: c ratings are not always completely accurate and are more commonly used as a relative figure between batteries to distinguish quality. However, in your case I'm assuming you are talking about the grim racer batteries which I have found in my experience to have a true c rating and if any ambiguity exists I would say they may be slightly underrated.
As for run time the increase in capacity will increase run time as c rating shouldn't play a factor in that regard.
Hope this helps,
Jimmy -
You will still have 30C, but you will double the current your battery can put out as would now be capable of 30 x 8.4Ah = 252A as opposed to 30 x 4.2Ah = 126A, you will increase your runtime.Paul Upton-Taylor, Greased Weasel Racing.Comment
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cool!! thanks guys, understand clearly now.Comment
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