The connectors shouldnt matter at all Jamie.
Its true that the better connectors you use, the less resistance and the more efficient charge/discharge you will get, but for charging NiMH even the old Tamiya style ones would be sufficient.
Just make sure the charger is pumping out the correct Amps at the correct Voltage and you wont go far wrong.
Oh, and get the connectors the right way round!
Black to black,
Red to red,
...Blue to bits
