Originally Posted by JanGeo (Post 109683)

A guy in California was working with someone that purchased more then they needed for the projects they are working on so I purchased 18 LFP40AHA cells from him last month. The pack of 4 I actually put on a UPS scale 0-50lbs and the way Lithiums work is they age faster when fully charged and cycle life is not affected by letting them sit at a less than full charge state unlike Lead acid batteries which really loose capacity when left discharged. I have them sitting on my desk in front of me right now with 17 connected in series and when I measure 4 in a row I get 13.4 volts. I also have done a few discharge cycles on a couple of cells and find that they hold their voltage pretty steady for most of their capacity if you don't draw too many amps out of them.