I have been considering this too, but for some old Priuses I have. It is not easy! Equallisation is done by overcharging the full cells at 10-15A, can't do that with Lithium! With these cells, which are the same as my prius ones, overcharging is allowed. Also, even with Ni-Mih they are degraded by continuous overcharging, and is the reason they fail so often. I have considered making another battery computer with a BMS that handles the new battery, could either replace the old one, or you could keep both, and generate voltages the old computer expects, drop the voltage with a divider to make it believe the battery is low when it really is, and boost it when the battery is full to make it stop charging. I would use Li-po4 cells for the flatter discharge curve.
-----Original Message----- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Rod Hower via EV Sent: 23 May, 2018 9:11 AM To: Electric Vehicle Discussion List; EVDL Cc: Rod Hower Subject: Re: [EVDL] Honda Insight Lithium Upgrade Insight Central: Honda Insight Forum | | | Insight Central: Honda Insight Forum Honda Insight Forum: Join our Honda Insight forums for free today to discuss Honda Insight hybrid, fuel economy,... | | | Everything you want to know about the Insight, including upgrades.In case it doesn't publish that link its www dot insightcentral dot net On Tuesday, May 22, 2018 4:05 PM, lektwik via EV <email@example.com> wrote: Hi Folks A friend has a 2001 Honda Insight with a degraded NiMh battery pack and wants to upgrade it to Lithium. I suspect there are multiple reasons this may not work, primarily that the on-board battery management software isn't compatible with Lithium. If anyone could provide "insight" on why this could or won't work it would be appreciated. Also any links to more info would be appreciated. Thanks! Roy _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)