On a recent trip to Florida I picked up some FREE! Vectrix NiMh batteries from a very nice man by the name of Copper. Since my EV budget is next to nothing at this point I was very excited. Now that the batteries are checked off the list Im trying to find a suitable charger that's cheap. The Vectrix pack voltage was around 120V but I only plan to use 72-80V on my bike to match the Alltrax AXE7245 that I found on eBay for $150.00. So what do you guys feel would be a fitting charging system for a battery pack like that.