[othello]

I am using the hyperion 1210 with my 2 5s1p A123 connected in series. With 10s A123 the charger starts at 5,4A and finishes at 4.4A. A full charge takes around 32 minutes (without balancer). The more the cells are out of balance the longer it takes (even witout balancer).

But the hyperion 1210 also starts slowly when the cells are below 29-30V. Therefore i charge 1 minute in 9s mode @ 5A and then switch to 10s mode.

Although A123 cells do remain quite good in balance, they are not perfect and do start to drift in voltage. I too now will buy a lba10 or a Astro blinky for A123. Balancing during every charge cycle is not necessary. So one balancer should suffice.

As of april 2007 the LBA10 "net" balancer is compatible with A123 cells.