So far I know that a LiPo cell is 100% charged at 4.2 volts. I don't, however, know what the danger reading is when discharging a cell. Ialso don't know how to figure a 50% charge voltage for storage. I'd appreciate an explanation of this basic stuff. Thanks kindly. rr Incidentally, I got several responses recently about a 3-cell battery that had a sharp voltage drop. Mfgr agreed that the cell was bad and is replacing the battery. Thanks to responders on that one.