Hi Fred and All, Rig one up with a Lightobject wthr meter. I'm going to use one to control my Volt module's charging, monitoring, etc. They have a wide selection online at very reasonable costs. Jerry Dycus From: fred via EV <[email protected]> To: via EV <[email protected]> Sent: Saturday, June 20, 2015 10:24 AM Subject: [EVDL] recharging/testing a LiFePO4 hi capacity cell All this talk of self-discharge and related issues has brought to mind my "spare" 180 ah cells, sitting idle in a "storage" capacity. I'd like to test these cells for capacity after all these (uncertain) years. I have a rather powerful radio-control-related charger, but the computer within tops out at a 100A battery capacity and as such, times out the charge sequence before reaching a proper level. The same thing happens with the discharge aspect. I would like to not spend a lot of money but do not have a good idea of the best way to top off my individual cells in the proper manner and then a suitable method to discharge to test them. Even a moderately low discharge rate of C/4 at 45 amps would give some indication of relative capacity and balance across the five batteries. I have a bench top power supply but it does not have anything near the level of current capacity considered useful for a 180ah cell.
All ideas are welcome and appreciated. thanksfred -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150620/6cf5798d/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) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150620/e269b037/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)
