Wow, but not good......

[nitrostarter]

Yep but I might have another problem. When I ran it, the runtime seemed really low, like 5-7 minutes. When I drove it close to me, I can here a sizzling type noise, or like air was being released, I didnt know what it was. Took my batts off to go charge them earlier and there's what looks like battery acid on 1 of the cells and now Im having trouble charging it, looks like the cell might have died maybe?