Discharge the pack to one volt/cell 4 volts for 4 cell pack. You will have to remove the outer sleeve or stick pins in to pick up the cell case. Then with the pack still under load look at the voltage of each cell, you will probably find one cell with a voltage way below the others. This will be the bad cell that is pulling the overall voltage down so you get an early cut off. You could replace that one cell but that is not a good idea with packs as now you will have one cell different from the others. In all probability there is nothing practical that you can do with this pack other than replace it. Of course a lot of this depends on how you have been charging it. If only fast charge that could be your problem, the cells are out of balance, but they should have been balanced out by the repeated cycling if you were doing it at a C/10 rate - charge 16 hours, discharge C/5 to 1v/cell. Check the leads to the pack to make sure you have not developed black wire problem which could lead to an early cut off due to the high resistance build up in the corroded wire.
Red S. Red's R/C Battery Clinic http://www.rcbatteryclinic.com Check us out for "revolting" information. > From: Raymond Juschkus [mailto:[EMAIL PROTECTED]] > Sent: Monday, March 04, 2002 11:05 AM > To: RCSE Post > Subject: [RCSE] Re:Battery Memory > > > Hi, Anyone know how to remove a memory from a 700mh receiver > battery? I > have cycled it about 10 times and all I get is about 20 min. Ray RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
