The CTC batteries I bought from:

http://www.batterypete.com/batteries...ery-lfp128198/

This battery doesn't have a discrete cell balance plug, though they do have an on-board BMS and are rated for enough surge/duration current to handle engine start.

The balance/charger uses a pulsed low current for cell balance. The pulsed current allows the charger to continue to charge any "high" cells without risk of overheat/damage while bringing up low cells. That's the plan anyway. I hope.

bumper