MagicShine PCM and 2s2p wiring question

[z_rmbassett21]

I have a MagicShine battery and understand that the PCM allows the pack to drop down to 2.0V before cutting off. From what I have read, this is too low and I should have something more on the order of 3.5 V. I am thinking of replacing the PCM with



http://cgi.ebay.com/Protection-Circu...item335f518d08



I have also thought about replacing it with this board:



http://www.all-battery.com/pcbfor74v...865032056.aspx



Would the following be the correct wiring and would it work with the above board.



http://mysite.verizon.net/resxqr4f/Document1.bmp



This looks like there is a connect at the +/- terminal for all four cells?????



Finally, what is the difference between the COM and BM pads?



Thanks

Rich