Battery charging question

@landonkun yeh I saw this glitch a while ago!

i believe @PXSS got to order them at a very good price! Since the price still stays low, even if you order 40pcs, I believe!

Hey guys, need some help. My set up uses three 4 cell batteries that add up to 50.4v. I have a 12s bms for the board for charging. I wired everything up like the description showed. I have an aluminum cased charging brick with a fan and all that. The charging brick is shown is specs to charge to 50.4v yet my batteries aren’t charging. I have all the wires connected right and the charging brick has the LED light on showing it’s on but nothing charges.

I am struggling with finding a way how to charge my battery only up to 80%. It’s only because I want to increase lifespan, and because I am riding mostly short distances. Is there a charger I can use to charge the 10s2p Sanyo Battery which I have in my Backfire G2 to a preset percentage? Is there some charger from hobbyking or somewhere?