So, I'm kind of in a debate, and before I say something that makes me look like a clown , I thought I'd check with the group. Someone said that a "dying or low battery in car or motorcycle will destroy the starter motor....because the motor will respond to reduced voltage by increasing the AMP draw....thus causing too much heat". I don't think this is true....well, not exactly. (BTW- I also think heat is a function of WATTS not amps per say.....am I wrong?) I don't think that a motor cares how many volts are coming in, so long as they are adequate to allow the motor to spin at its designed speed, and also are not too much. However, if LUGGING (trying to get up to speed but can't), then I think the amps are not increased per say....but they do stay at "peak" or "startup current" (due to the load) for an extended period. I guess what I'm saying is that I THINK it's not the low voltage that kills a motor (via heat from extra current)....it's the LOAD that has increased because the motor is not able to spin at full speed, thus increasing the amps (no higher than they were with a "good" battery.....but keeping them there for extended period) ?? So, if a motor runs on 10-12 volts, and spikes at a current draw of 200amps for 1 second and then drops to 30 amps once up to speed......IF the battery is getting low and is only at 8 volts, then, the motor still won't draw more than the 200amps (right or wrong?)...but it may continually pull that kind of current (the 200a), since the motor is "lugging" and unable to attain speed. Am I out in left field on this one?? Maybe someone can take what I said.....and make it more clear in terms of amp draw of a motor. Hope that's slightly more clear than mud....but I think maybe it isn't?