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I got my batteries back last night and threw them all together to discharge and balance them. They should be back in the car before the weekend (when I get to take a trip to pickup a Prius for a friend)!
I did want to elaborate on the BMS a bit. The first version of it had one feature, over-charging protection. This 2nd version will be adding a few additional features including: over-discharge protection, SOC gauge, Prius off PHEV operation. Over discharge protection is pretty self explanitory, stops the kit when the batteries get down to a programmed DOD. The SOC gauge is an LED bar graph display that will act like a fuel gauge for the PHEV batteries. The Prius off PHEV operation will allow the PHEV kit to charge the OEM pack even when the Prius is turned off. This allows you to park the Prius with a partially discharged pack and not have to sit there with the Prius on while the PHEV charges the OEM pack. The PHEV will automatically shut off once the OEM pack has reached a programmed SOC.
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