R/C Tech Forums - View Single Post - How to figure out brushless motor amp draw
Old 12-04-2023 | 10:34 PM
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gigaplex
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Originally Posted by sn47som1
The goal is not for timing, thermal or heat analysis. I need to know the max amp draw from the motor at its highest level, full burst. This is one of the best ways to spec out a highly efficient brushless system with lots of headroom right? If my battery is rated at 850 amps, and lets say my Tekin motor pulls a max of 150 amps, then I would have tons of headroom from the battery and wouldn't even come close to overloading it.
No battery is actually rated for 850A, C ratings are mostly bogus. When speccing a system, usually the ESC will specify the motor limit. It's rare but some ESCs like Castle specify a minimum C rating on the battery too but that's not often a concern.
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