> > A NiMH battery should be trickle charged (assume constant current > > of a few milliamps, rather than a high current pulse > Panasonic regard trickle charging as the least-preferred method> > http://www.panasonic.com/industrial/includes/pdf/Panasonic_NiMH_ChargeMet= hods.pdf Actually, somewhat less than "least preferred". At best non-preferred. See bottom of page 13, left hand column. Summary: "Don't do it, see us." > Duracell are OK with it at C/300 > > http://www1.duracell.com/oem/Pdf/others/nimh_6.pdf So ghey say. Almost nobody reputable says this for higher energy density NimH (say 2500+ mAh / AA). So this comment from Duracell MAY be the marketing left hand not taking to the development engineer right hand. That said, C/300 for a 2500 mAh cell is ~=3D 8 mA and about 12 mW charge energy/cell. You'd HOPE that this was toleable. Many say that it's not. Russell McMahon. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .