For simplicity's sake, I am using the DURALITE 123's because they have their own balance circuit built in and I can continue to use the "stupid simple" duralite 4 output charger.

No programming, zero hassle, just plug em in and walk away. When the little green lights go out, the batts are charged. This does not take advantage of the 123 fast charge feature, but I don't care. I have enuff amps on board for a minimum of 10 flts each in my Rx and ECu batts, so i dont need to charge at the field.