Hi Brooke, I've considered that, but the problem is that we have a lot of batteries to test (and we want to do multiple cycles each) and don't want to devote much manpower to it. I was therefore thinking that a device which could BOTH charge and discharge would be best. I'm considering getting both a programmable power supply and programmable load and putting them together with a PC to create such a device, but I was hoping to find a simpler solution. Sean On 7/27/07, Brooke Clarke wrote: > Hi Sean: > > If all you want to do is measure battery capacity then an electronic load may > by all you need. That's how I do it. See: > http://www.prc68.com/I/EL1132.shtml > Rated for 60 Volts, 60 Amps, 360 Watts. But these come in many sizes. I use > an old laptop to program 1 minute at the current used by a transmitter then 9 > minutes at the current used by a receiver to test batteries that go into radios. > > -- > Have Fun, > > Brooke Clarke > http://www.PRC68.com > http://www.precisionclock.com > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist