[starscream]

If these chargers were truely 3C chargers, coolhandcountry would be correct, but I believe these chargers will only charge at 10 amps max so the 6400mah packs should take twice as long to charge as the 3200mah packs.
These chargers charge the packs with around 80% efficiency so your looking at atleast 12 amps per charger.
With those numbers the CE23 amp power supply should handle charging at 9.5 amps but personally I would charge at less than that to be safe. I usually charge at 7.5 amps with two chargers, just to keep the power supply happy :027: .