This is the "Squid" multi connector charge lead from ProTek R/C. This lead connects to your charger with standard 4mm banana plugs, and allows you to charge nearly any battery.

The ProTek R/C 2S High Current Charge/Balance Adapter is the solution you have been waiting for if you charge/discharge your 5mm bullet batteries at higher than normal amp rates, or need a heavy duty low resistance charge cable.

This is a heavy duty EC3 style connector charge lead from ProTek R/C. This charge lead has a EC3 style on one end connected to 4mm banana plugs with high quality silicone wire.

ProTek RC Heavy Duty 14awg XT60 Charge Lead (Male)