LiPo cell balancing?
I'm getting back in to racing after being out about 13 years. Just bought a Onyx 245 charger and duratrax LiPo battery (DTXC1810) 2 cell, 7.4v, 3700mah. It has a 2mm jack for balancing, but was not included with the battery. Anyone have any insight on this? I'm confused as these batteries are totally new to me.