This charge adapter cable allows you to connect your Scorpion Backup Guard to any standard Li-Po balancing charger that uses JST-XH style balance plugs. The charge adapter is very easy to use. You simply plug the balance lead from the Backup Guard into the female balance connector on the adapter, then you plug the male balance lead into the balance port on your charger. Finally you plug the pair of 4mm bullet connectors into the output port of your charger. Set your Li-Po charger for a 2-cell battery pack, set the charge current to 0.5 amps and then start the charge.