Quote:
Originally Posted by Cmartin2001
out of the eight batteries 4 were bad at first glance testing at just 2v. i purchased 2 new 6v to get me back up to 36v.
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i found the first battery was dropping to 0v while the rest would only drop to about 5 under load.
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That's your huckleberry. So you have eight 6v batteries. 4 were good-ish, giving you four 6v (24v) and four others that aren't worth a second thought. The first time you hit the gas those other four will drop to 0V each and good luck getting the cart to move... Removing two and adding two new 6V batts just adds confusion. The four "good" batteries are probably shot just not as shot as the other four. Plus it sounds like you're charging a 48V pack with a 36v charger? That's no bueno.
To me your options are a 36v pack and keep your current charger or a 42V or 48V pack and get a different charger. You really can't test well until you have the batteries sorted. Bad batteries will make the rest of your testing error prone.