Reconditioning is an expensive word that is used by people who offer you a large bill for recharging your Prius pack, because NiMH self-balances when overcharged. Presuming you have a 2001-2003 Prius, its pack has 38 modules of 6 cells each, so nominally 7.2v x 38 = 273.6v. (2004+ Prius has 28 modules, Toyota simply deleted 10 modules from one side, that is why the disconnect is still between a bank of 19 and one of 9 modules.) NiMH is rather insensitive to discharging to 0v. Typical full charging voltage is 1.45v per cell, so a peak voltage of 330v. Make sure charging current is low enough and you certainly stop when pack starts sagging from heating up, I have seen the destruction of severely overcharged Prius pack, even destroying the compression plates at the end of the pack. I have charged my Prius pack by taking a multivoltage power supply of about 100W, opened it to locate the large 400V bulk capacitor that is the output of the PCF boost stage, attached a string of 3 identical incandescent bulbs, then attach that contraption to the battery (behind the contactor), fired up the power supply (which causes the entire pack to be grid connected! Be careful!) and insert the maintenance disconnect to complete the circuit. The supply creates about 400v, if the pack is completely dead then all bulbs light up brightly. The higher the pack charges, the dimmer the bulbs become. Cor.
On Thu, Nov 14, 2019, 11:32 AM evtlfp20 via EV <[email protected]> wrote: > I appreaers prius pack has no bms circut, so on an aged pack can I use > my i charger 306b in nicad intilze mode to help revive it ? if it has > not gone belew 1.5 or some thing like that ? > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/index.html > INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at 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/20191114/6b07c2cf/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/index.html INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
