finally took apart and repaired my 280c (no dremel was involved) but in the process removed the pram battery to avoid any leakage (just in case) and.. out of curiosity.. dismantle it.. (its dead anyway)... discovered it was 2 Panasonic UL2330 regargable 3v lithium coin cells... problem is... theres 3 wires to it.. the two coin cells are stacked and there is a red on the '+' of the first and a black on the '-' of the second... but a white inbetween the two... the only thing i could think of for such is the batteries are charged differently than they are used... so my question is; are they charged in parallel and used in series or vice versa? or am i completely off whack and the white wire does something different alltogether... ? _______________________________________________ DuoList mailing list [EMAIL PROTECTED] http://listserver.themacintoshguy.com/mailman/listinfo/duolist
My theory is that they are 2 different circuits charged in parallel. Furthermore, I am guessing that the recharging of the cells stops when either of the cells reaches a certain limit. If you examine used PRAM cells, its seems like one is drained, and the other isnt much drained. I rigged up a little do-dad that allows the duo to charge only one of the cells (most depleted) to get old PRAMS back up to snuff.
Mad Dog _______________________________________________ DuoList mailing list [EMAIL PROTECTED] http://listserver.themacintoshguy.com/mailman/listinfo/duolist
