A123 26650 LiFePO4 cell related documents. Provided some information re charging which I've not seen from other manufacturers. Their fast charge mode with Vcell =3D 3.8V, Icc =3D 10A and 15-minute-total-cycle termination is consistent with fast charge implementations seen elsewhere but not commonly described on data sheets (that I have seen). Proper Operation of A123 Systems High Power Lithium-ion cells Only 1 page but extremely informative http://liionbms.com/pdf/a123/charging.pdf A123 Battery pack design safety guidelines (draft) Useful. Somewhat sobering. http://liionbms.com/pdf/a123/guidelines.pdf Battery datasheet - A123 High Power Lithium Ion ANR26650M1A http://www.akukeskus.ee/anr26650m1a_datasheet_april_2009.pdf Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .