Following up on Marcus' good comment... I should amend that if you know the cells are close in SOC (my assumption from the original message) then you could charge four in series with a charger for 12V PbSO4 batteries (or by alternator in a 12V ICE car). It is not ideal because if one of the cells is very low then the other 3 could be overcharged. Or if one is damaged and has a limited capacity compared to the others. If you could monitor or check the individual cells carefully to stop charging when the first cell reaches 3.6V then the others are protected.
It is just a suggestion in case you don't have a more appropriate charger. Probably should have kept the idea to myself. You really need a good Ah meter. The JLD 404 allows you to shut the charger off on certain conditions. Very handy. A good low cost, DIY tool for charging and discharging batteries. I gather there are various more sophisticated and costly BMS / charger combos. On Sun, Dec 29, 2013 at 12:26 AM, Marcus Reddish <[email protected]>wrote: > SNIP > Please do not ruin your cells by charging them with a 12v bat charger as > suggested. They will not be balanced and the higher cells will be damaged. > SNIP -- Put this question to yourself: should I use everyone else to attain happiness, or should I help others gain happiness? *Dalai Lama * Tell me what it is you plan to do With your one wild and precious life? Mary Oliver, "The summer day." To invent, you need a good imagination and a pile of junk. Thomas A. Edison<http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 550-2430 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell (919) 513-0418 Desk [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131231/d0243726/attachment.htm> _______________________________________________ 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)
