[tc3_racer_001]

simple sum. 5s = 5x 4.2v x 10A charge = 210W of power going INTO the battery... the charger isnt 100 percent efficient and would need 20%+ to be safe = around 250W

now, your supply can supply at 100% *assuming the stats are correct...* atound 10A at 12v = 120W... you need something more than 2 times this to run these high voltages!!

ok, so how many A could you charge at? well, 120W divided by (4.2x1.2(to get 120%, safety margin))5 = 120W/25v = 4.8A, and that is using the supply to its greatest, and wht voltage would only be like 10.5 or less, so you would most likely only be able to charge @ 3.5A