Hi,
I use about 2ah per mils or 330W/hr per mile and work is 30 miles each way & charge at work (about 60ah down on the 130ah batts). Sometimes I drop to 90-100ah down (on LinkPro Xantrex meter) about once a week when I have extra errands on the way home. The pack gets charged close to 100% on each cycle twice daily. Sometimes I run out at lunch for parts, (that's where the 70 miles daily comes from.) I have 20k miles right now onthe pack and the battery scanner shows no low cells. I made my own balancers on www.evdl.org/lib/mh linked to the charger, when any one cell hits 3.6V the charger (ferro-resonant Lester type transformer) cuts back to 2A. If any one cell hits 4.0V, stop charge & display OV fault (scanner catches which one). When all are 3.6V or DV/DT=0 stop. Have a renewable energy day, mark www.REEVAdiy.org Date: Tue, 5 Nov 2013 12:35:29 -0500 From: Mark Hanson <[email protected]> To: "[email protected]" <[email protected]> Subject: [EVDL] LiFePO4 Miles on EV's Message-ID: <[email protected]> Content-Type: text/plain; charset="iso-8859-1" Hi Ben etc, I'm in Roanoke, VA (see below) & charge/discharge twice daily, 60-70 miles total per workday about 350 miles per week. On week-ends I run errands Sat & Sun about 16-30 miles. The batts are just mounted on the erector set bracketing you get at Lowe's, no special heating/cooling. Have a renewable energy day, Mark www.REEVAdiy.org Hi Mark, Can you comment on how aggressively you use your batteries? What climate are you in? Do you cool/heat the batteries? I have the same batteries so I'm curious. thx -ben www.evalbum.com/4001 Hi Ben etc, I charge to 3.6V per cell dv/dt=0 similar charger I've used on Pb and ni-cads, when the voltage stops rising on the entire pack .01VPC = stop. On Oct 22, 2013, at 7:17 AM, Mark Hanson <[email protected]> wrote: > Hi Folk's, > > > > With the talk of miles on your LiFePO4 EV's, I just turned 20k on my set of > 36ea 130ah CALB batteries. When I ran lead many moons ago, 10k miles was > about it. Hopefully I'll get 60k on the Lithiums since they are 6X more > expensive than lead & what the manufacturer claims 3K cycles or 60k miles. > > > > Have a renewable energy day, > > > > Mark in Roanoke, VA > > www.REEVAdiy.org -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131107/12ef3a2e/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)
