Hi, Does anyone have a good reference about end of charge voltage for NiMh batteries depending on the temperature ? Reading one of Russel's posts I found his idea of using a shunt regulator to control the "termination" of the battery charge great but was not able to find any references anywhere I searched for what would be the best voltage to clamp. My application does not need 100% of the batteries capacity but temperature variation may be big and I need the batteries to last as long as possible. 1.4 volts "fells about right" but I would prefer to find some references to begin testing. Best Regards, Alexandre Guimaraes -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist