Do you think this is too risky of an experiment? The Ping guy said that he does not recommend connecting his batteries in series or parallel; however, he suggested that I use diodes when I parallel the batteries. I need 100Ah for my brushless Etek motor, and I don't want to carry 300lbs of car SLA batteries. By the way, I am trying to construct an E-Wheel like the guy who modified his Honda Insight. Any suggestions? Thank you.