When people say it's too high of C rating, what those mouthbreathers fail to understand is that the C rating is not a measure of how much amperage is going into your gun.
The C rating is the size of the pipe that the gas flows through. Bigger pipe, more flow. Doesn't mean the engine is using more gas, just means it COULD use more gas.
If your motor wants to draw 21A, then it's going to draw 21A whether your battery supplies 15A or 2000A.
One thing to keep in mind is MOTOR START SPIKES
If your motor pulls 21A when it's firing full auto, it could very well pull 75A for a few milliseconds when it first begins to turn.
Any time you see guys with slightly puffed lipos, it's the motor start spikes that are damaging that lipo.
More C rating = more better, ALWAYS
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