Mercury - Thruster Power to Battery Cable (20 ft) Rigging Accessory 84-8M0174061. OverviewThis 20-foot power cable gives your thruster a solid, direct feed from the battery. It's meant for boats where the battery sits a good distance from the thruster module, or when the wiring path takes a longer route than usual. The extra length helps you route the cable cleanly without stretching or forcing tight bends. Once it's hooked up, the thruster usually reacts with steadier, stronger push, especially