[DMXF]

Xack - I spoke with a tech person at the lithium battery manufacturer and he said two of the same models of their battery would have a lot of cell imbalance problems running in parallel, resulting in significantly reduced performance. He mentioned a BMS (Battery Management System) as being needed to optimize this. I'm just not convinced how big of an issue that is, for example he even said their batteries were not good for an application like a Cobra or boat and when I pressed him why not he just said "we haven't tested them for that". As opposed to initiating a whole research project, I just thought someone out there has probably been through all this. The lithiums sound like they could very well be a much better option than even batteries like gels and dry cell lead acids, in large part because of the weight savings... a typical group 45 battery like used in a Cobra weighs around 45lb and TWO of the Rebat size lithiums only weight a total of less than 10 lb.