Quote:
Originally Posted by Cobb
If you hook your 220 gen set to your prius battery I hope you record it for youtube. 
You need almost 300 volts dc and an amp or so. You want to do it slowly, 350ma is even better once you start to approach full. You dont want to damage anything as those packs and cells are hard to find. |
Well that is what the lightbulb is for, a 40 watt bulb @ 120v uses 333ma. You do need to monitor pack voltage occasionally, but a couple light bulbs and a voltage doubler (or rectifier if you have 240v) will force a limited amount of current into the battery. Although it is horribly inefficient, it has been done before. As the pack voltage rises, the bulb resistance goes down and allows the current to stay somewhat stable. The goal is to get the pack charged just enough to start the engine. at 6.5ah it will be fully charged in 20 hours at 333ma rate.
But running a couple 40 watt bulbs for 10-20 hours is pennies next to buying fancy chargers.
Another option, I have a triton RC charger, you could charge each cell individually, and identify potentially bad ones (and replace them).