Willie, Sure - On EndlessSphere there is a whole world of hobbyists assembling batteries and replacing cells from packs they blew up. BTW, first thing to check is if that cell self-discharged below the threshold from the BMS to allow charging again, sometimes the cell is not bad, it just needs to see charging often enough to avoid it self-discharging too low, so measure the cells, put a little bit of charge in cells that are below the cutoff (typically 2.5V) and see if it comes back and wants to play nice or that it is really dead. I have resurrected several Li-Ion packs that had such a cell with high discharge and the only consequence was that the one cell has slightly higher internal resistance and self-discharge, so as long as you keep it charged regularly and avoid maxing out the current draw (which is usually not a problem on an eBike: typical motor draw is 500W so that is only 1.5C from a 36V pack
Cor van de Water Chief Scientist Proxim Wireless office +1 408 383 7626 Skype: cor_van_de_water XoIP +31 87 784 1130 private: cvandewater.info www.proxim.com This email message (including any attachments) contains confidential and proprietary information of Proxim Wireless Corporation. If you received this message in error, please delete it and notify the sender. Any unauthorized use, disclosure, distribution, or copying of any part of this message is prohibited. -----Original Message----- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Willie2 via EV Sent: Monday, June 15, 2015 9:12 AM To: Electric Vehicle Discussion List Subject: [EVDL] Bicycle battery A battery for my Prodeco bicycle turned up dead. The OEM replacement is nearly $500. Can someone point me toward a better solution? 36v, ~10ah. Has anyone heard of anyone doing cell replacements? _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
