Here is my setup for a 12S 2P 10ahr pack
Having switched over to Lipos, I needed a safe way to charge them. The only solution I felt comfortable with was to use a quality RC charger. The Hyperion was the one I felt was best designed. I then made a DB25 board to use as the balance plug. Here is the board attached to 4 6S 5000mA Turnigy packs. This setup is a 12S 2P configuration giving you 10ahrs at 48volts. The balance wires are just long enough to plug into the DB25 board. You need a second one at the recieving end of the charger.
As you can see the board is attached to the end of the pack. The balance wires are just long enough to fit. There is enough room for my smart switch which would make this pack completely stand alone. Allowing me to let others use the pack without worry.
The bag used is a Topeak RX. It uses an integrated sliding mechanism for easy removal.
I padded the pack to protect the lipos
I balance charge during every charge, this setup makes it easy to do.
I could of shortened the wires going from the charger to the DB25 board but the wire pattern is not 1:1. You would need to wire it, instead I just used short balancing cables. I used ribbon cable for the connection between DB25 boards. This allows for hardly any wiring.
I still have boards available for anyone wishing to go this route. Bare boards $10 each. Built $25.viewtopic.php?f=6&t=12654&start=135