I was charging the quad I did with my super brain... But last night I wired both of the chargers I had together.
First I only wired it so it used 2 batteries out of the second charger. Then I ran the trucks batteries all the way down (took about 40 mins btw) and used my newly wired 6 cell charger to charge it just for a test. It maxed the truck out at about 5.2 volts. So just to make sure it does the job right each time, I re-wired it to be an 8 cell charger... Still need ot test the 8 cell charger.
