> > > But if all you need is ten or twenty charge cycles, go for it. > > You really think it's as bad as 10 or 20 cycles if not discharged below > > 38V (36 cell pack, average of 1.05V per cell)? You could consider termination on a multipole socket such that you get access for charging and maintenance. This could be a tap per battery + ve or, best, each battery with both leads isoalted and brought to the socket. Add an N pole ojining plug for operation and parallel or whatever access for charging. Needless to say, an N pole socket has it's own problems [tm]. Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .