I bought a PowerLab 8 for charging. Then went to Ebay for 2 Dell computer server power supplies for about $35 shipped. I wired them together to produce 24 volts. I can now generate 40 amps of charging power and can charge 6 3750, 6s packs in a matter of minutes!
.. I also gave my build table a face lift. Added a new piece of sheetrock to build surface. . Then I added 3 110.. now it's off to bed to get up for work mm