Is it normal for a receiver battery to have a different balance plug than regular lipos? I'm running a 2S Lipo from Losi for my receiver and its balance plug is smaller than the common lipo balance connectors which means it won't fit any of my balance ports. Any help here? Thanks.

there are several different styles of balance plugs. its not because your lipo is a receiver pack, it more comes down to what that manufacturer uses. you will need to find out what style it is and get an adapter

Losi uses the thunder power balance connector, not the more common JST unfortunately.

Ah makes a whole lot of sense now. Thanks!