[Unsullied_Spy]

I have the 5i (little brother of the 1210i) and I bought 2 LBA10s and the little kit to charge in series. Basically you just hook the positive of one balancer into the charger, then the negative from the other balancer, then connect the remaining plugs on the balancers with the cable from the kit (2 4mm female bullets and some wire) and then there is a networking cable that goes between the two balancers (not sure if this is needed or not, but I like to know what voltage each cell is at). With my 5i it takes a while to charge 4s and 5s because of the low wattage, but it's better than charging one-at-a-time IMO.