hey thanks for the input.
this is whats written on thunderpower's site
''Q: Which charger/balancer combinations are approved for charging G4 series batteries at rates of 3C to 6C?
A: G4 series batteries are capable of being ultra-fast charged safely at rates up to an amazing 6C (for charge times of 10 minutes or less!) with no loss in performance or cycle life delivery when using approved charger and balancer combinations. We have a number of new charger/balancer models in development now that will be capable of ultra-fast charging even our highest capacity batteries so be sure to keep an eye out for release of these new models in the near future. In the meantime the following is a list of charger/balancer combinations approved for charging G4 series batteries at rates up to 6C:
Thunder Power RC; All models
Bantam; e-Station series (models w/built-in balancer)
FMA; CellPro series
Hyperion; EOS series (models w/built-in balancer)
Junsi; iCharger series
All other charger/balancer combinations have not yet been tested or have been tested and are not approved. We recommend charging at rates up to 2C max with all other charger/balancer combinations and 1C max when charging without a balancer''
when they say 6C, do they mean 30amps for a 5200 pack??
this sound really fast compared to the dead slow 5.2 amp charge!!!