What happens if use Li-Po battery at max c-rating???

[Kane1234]

Hi there,
I was wondering what would happen if we operate the Li-Po battery at max c-rating?
I was operating a quad-plane VTOL in RTL mode and realized there was scenario that the drone was operating almost at the peak c-rating of the Li-Po battery (i.e. current draw about 100A) and then plunge down to 0 A. Is this a consequence of operating at max c-rating? if not, do you guys know what's the effect of it?

 

[JCLs]

Per your next post you using 15C, 4000mAh batteries. If you believe C rating on your batteries, C ratings are often dubious, especially higher ones, then your “instantaneous” max draw is 4 x 15 or 60 amps. You have two batteries in parallel so you double that to 120 amps. Your 100 amp spikes are fine and I bet not real accurate looking at your steady draw being less than 20 amps. Spikes do not hurt batteries, but heavy draws of several seconds could. Battery would be really hot and probably puff pretty quickly as repeated.


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[betty]

You can try. Your battery will be puff soon.