- Mar 18, 2011
Bms rating that Jimmy fitted is 50amp, he said that the 17ah GA cell pack would supply 22a without issue, a spin up the road at full whack sagged within a minute , only for it to recover after a few minutes of rest. You have me worried that I could destroy this pack , I may have to turn the motor down a little, For a little un it sure is greedy , many thanks to D8ve for input as I'm a bit of a thickie when it comes to all the tech stuff. Maybe I should find time to study amps and ratings a little more, surprised that the small motor isn't making heat with the large amperage going in, your thoughts?No you still get sag because you have privileged distance over power, you want at least 30Qs if not HD2s with a 22 Amp controller and those motors. You only get 15 Ah for the same number of cells but 60 A or 80 A current on tap. What is the BMS Amp rating?
I have nuked a bottle battery with my GSM at 15 Amps! These motors draw max Amps differently than hub motors do - maybe they ramp up quicker? Maybe they sustain current draw over longer periods? In any case they eat weak batteries for lunch...