I'm not impressed with that charger at all. I could not find anything in there about using in conjunction with a balancer of any type or brand. If your pack is charging fine with the main lead then that connection is fine. Next take and try to balance the pack with the LBA-10 by its self. If that works then you have an issue with the Charger and the balancer not communicating with each other. I would suggest contacting The Charger Manufacturer and asking them what the issue might be.
Keep me informed........
Jason