The lipo can't "force" more current into your motor than it will draw. And the active braking doesn't have anything to do with lipo capacity or discharge rate, since at the point where it begins braking, the power from the battery has already been cut off. Lipo only affects things when the motor is turning.
I have a wattmeter that measures the current draw as well as the voltage drop of the battery under load. Use it for my RC planes to make sure the propellor is sized correctly to the motor. I hooked it up to one of my guns and it drew about 25 amps. Now, if the battery is only able to supply say 10 amps, the motor will take it all, and draw 10 amps. Which is bad for the battery, for the motor to try to draw more than the battery can supply. But if the lipo is able to supply MORE than 25 amps, be it 26 amps or 26 MILLION amps, the motor will still draw 25, because that's as much as is physically possible.
Incidentally, the AWS claim that the raptor can handle 100 amps is BS IMO. We had this discussion on another board and an engineer I know personally posted this:
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Edit - I went downstairs to our electrical dept and had my electrical engineer calculate the required PCB trace thickness to transfer 200 amps continously with a 70°C temp rise (95°C / 203°F total). Assuming the trace is 2mm thick, it would need to be 245mm wide. If we let the copper get hot, say 200°C / 392°F, then we can get away with only 130mm wide traces...
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I know he's talking about 200 amps not 100, but still, look at the math. The FET itself may be rated for 100A, but the rest of it, well, isn't.