On Sat, Oct 9, 2010 at 2:34 AM, RussellMc wrote: > Here's a battery that would suit you if used with two in series. > 18650 LiIon but rated at 13 A discharge. It has a substantially lower > capacity (1300 mAh) =A0and a slightly lower rated terminal voltage (3.6V) > =A0than typical LiIon cells (2000+ mAh, 3.7V). They claim 400 cycles to 7= 0% > capacity at 1C charge/discharge rate - which is =A0acceptable and better = than > some. > > =A0http://www.bipowerusa.com/products/BIPOWER-LI-ION-HR18650-1300.pdf > > >From =A0http://www.bipowerusa.com/bipower.asp True, but that's still 7.2 volts. I was wondering how to make a power supply with an adjustable voltage output. I'm going to be stacking two 18650 Li-ions in series anyway, to total 7.4 volts. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .