On Dec 25, 2005, at 2:06 PM, Philip Pemberton wrote: >> Some NIMH cells spec ZERO overcharge, and some can handle up to C/10 >> although they don't really like it. > > *scribbles out "maintenance charge" section of his design plan* > > Right, that's one less thing to write code for :) > Most NiMH batteries go dead through self-discharge alarmingly quickly (though there are supposed to be some new cells out there that improve this a great deal.) If you're like me, you really want some sort of charger where you can go to get cells that are near full charge, and just leave cells in there waiting for your arrival. If they can't take a maintenance charge, this makes the code MORE complicated rather than less complicated! BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist