Why do some racers solder their battery/motor wires instead of use plugs?
Most battery plugs are very inefficient in use and racers want to squeeze every bit of power out of their motors and batteries. Soldering the wires directly to the motor and/or battery instead of using plugs is one way to regain some of the lost battery power. There are a couple of types of plugs that lose almost no power, however preassembled battery packs aren’t equipped with them.
