Electrified Downhill bike

[Metallover]

You could charge a123s straigh off a power supply and the pack would stay balanced. Ebikes, especially with hub motors seeing around 20a max, and a large capacity pack capable of 100s of Amps, don't even make these cells sweat. Look around on ES and see what they say about the a123 cells.

I dont balance charge my turnigy pack, although I balance them every five runs orand; they are never off by much. I charge them in a 6s 6p configuration...

The only thing you really need is a lvc. Hobbycity has a few alarms, I love the voltage and temperature monitor. Check the balance ever couple weeks with a voltmeter and balance charge if needed, but with a123s you should be ok.