Quote:
Originally posted by Adam Y.
I have done this before besides a little bit of sparks nothing really was destroyed. The only time you risk destroying a battery from hooking it up to a motor is if you stall the motor. Then again stalling the motor is just as likely to destroy the motor before the battery. It seems very hard to make an SLA acid battery explode. I have read horror stories about people abusing there batteries and all the battery would do is stink, and expand a lot.
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That's assuming the motor is in good working order. If it's shorted internally (if the brushes shomehow fell off and landed in the wrong place, etc), it's virtually the same as connecting a wire between the two terminals. Yes, the sparks are very pretty, but it really isn't worth it...