the icharger 4010 has the most inter discharge power out of any charger that I know of. It has a max of 130watts of discharge per channel and a max of 200 watts when combined when using both channels. So assuming your discharging a fully charged 8.4volts 2s battery 130 watts is a 15amps+ discharge.

the 406 only gets you 80 watts of discharge power. Still pretty good. Good for about 10 amps of discharge power.