is it possible to do a long charge of the hybrid battery with a regular battery charger? if so how? thanks for your help
No. The Hybrid Battery is 201 volts. It is rare for a dealer to have a charger for it, they are mostly kept at Toyota Regional. An example is of page 6 of this PDF http://www.autoshop101.com/forms/Hybrid15.pdf Very brave folks have disassembled the 28 cells and charged each individual cell with 7.2 volts.
As a comparison, there's a method for charging the civic hybrid battery in-car. It requires first removing the battery and installing temperature sensors and splicing in a wiring harness. It's pretty involved, will set you back about $1000, and requires a fair bit of DIY and learning. Personally I think I'd prefer to just go with a new or refurb replacement battery. Product: http://99mpg.com/Projectcars/gridcharger/ A (long) video on the install:
The first version of the Prius came with it's own HV battery charger built into the car. It charged the battery from a 12 volt car battery. One of these chargers would work on the gen1 Prius if you could obtain one from Japan. John (Britprius)
