My Valence 40ah battery which cost 100 dollars used after being recycled from a medical cart was always in balance...however it was $1,200 MSRP new. so you get what you pay for. I may try to find another of those as the 40 ah more closely matches the Leaf lead capacity. Lawrence
On Tuesday, April 20, 2021, 6:32:59 PM PDT, -Phil- <p...@ingineerix.com> wrote: I have 2 weeks of voltage and current datalogs taken at 1 second intervals. The absorption phase seems adequate if you drive it enough. If you aren't driving far or often, add a tender. Mine had the integrated solar panel, but didn't work because it was parked inside. I sold the Leaf in 2014 and it's battery was fine. In fact, I think the Lead outlasted the Lithium from what the second owner told me. I don't know of any 12v Lithium replacements that mid-balance. All are top-balance, so if you believe what people are saying, then it most definitely will NOT stay in balance. On Tue, Apr 20, 2021 at 6:26 PM Lawrence Rhodes <primobass...@sbcglobal.net> wrote: > I live in San Francisco so freezing isn't an issue. It seems your findings > differ from the Leaf forum. They seem to think the lead battery is > constantly undercharged so lithium would fair better since the battey's BMS > will balance the battery constantly resulting in longer life even at 80% SOC. > What I would worry about is the possible 120 amps from the DC/DC converter. > Lawrence Rhodes... > > > > > > > On Tuesday, April 20, 2021, 6:19:58 PM PDT, -Phil- <p...@ingineerix.com> > wrote: > > > > > > I owned a 2011 Leaf and my tests showed that it did a proper 3-stage > temperature-compensated charge. > > The reason the 12v battery doesn't last as long as many would expect is the > rather high quiescent loads from the Telematics system. This is the same > problem in many EVs today. > > I think I've discussed why you don't want a lithium battery in place of lead > in any vehicle several times here already. (Load dump capability and if you > live in colder areas of the country, temps below freezing are an issue.) > > On Tue, Apr 20, 2021 at 5:45 PM Lawrence Rhodes via EV <ev@lists.evdl.org> > wrote: >> https://mynissanleaf.com/viewtopic.php?t=22752 According to these guys a >> lead battery is not what a Leaf needs. Seems a lithium of some sort would do >> great. Another site said the DC/DC converter can put out as much as 120amps. >> The brakes and other systems that run on the 12v system might need a boost >> if the battery fails and braking is very important. After finding out that >> the lead battery is under charged I suspect an undercharged lithium battery >> might fair much better and for longer. Lawrence Rhodes >> >> >> >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20210421/9a3c35a8/attachment.html> >> _______________________________________________ >> Address messages to ev@lists.evdl.org >> No other addresses in TO and CC fields >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >> ARCHIVE: http://www.evdl.org/archive/ >> LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org >> >> > > _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
