I think you could Matt, No problem. I have a slight concern with a ground looping wire acting like an antenna. But without High Current ESC's and we are not trying to transmit any video or anything like that the signals collected would be pretty negligable.

On that loop you can locate your batteries anywhere you would like. I like to put Shottky Diodes in series with my batteries to isolate them in the unlikely event a cell shorts out in one of the packs. I haven't seen that in A123's but it seemed pretty common in NiMh batteries. If you don't use a loop i guess it makes the most sense to put one battery on each end of the +/- bus.

Steve<font color="#444444" face="arial, sans-serif" size="2"><span style="line-height: 16px;"></span></font>