When the current from your boat’s alternator has charged the main engine battery to a voltage of 13.7 Volts, the Voltage Sensitive Relay cuts in the  trolling motor battery then draw power from your main engine to efficiently charge your batteries on runs between fishing spots, this keeps you on the water longer and decreases on-shore charge times, it also extends your Minn Kota/ Motorguide electric trolling motor battery life by protecting your battery from frequent deep discharges

This Perfect, ready to go wiring harness charges your Minn Kota/Motorguide Battery bank from your boat's alternator. Wires directly from your starting battery to the front Minn Kota Battery with a VSR & Circuit breaker in line.
Just bolt on to your existing battery lugs and your charging worries are over. Perfect for "on-water" charging when you don't have a 240 Volt outlet to plug in to.
Suits any 12 Volt starting battery to 12 Volt second battery bank arrangement or 24 Volt starting battery to 24V second battery bank arrangement.

Your batteries will last longer as well by not being run down to the state of getting the plates sulfated which is the culprit of ruining a good battery.

They are only intended to keep you running stronger longer. They are not intended to fully charge your battery. You need a good on board charger as well to keep your batteries maintained properly.

Includes:

• 4.5m wiring loom with protective conduit
• 12 volt 140Amp VSR (Voltage Sensitive Relay)
• 50Amp Thermal Breaker
• Battery lugs (fitted)

Other Charging and Wiring Harness Options:

• Wiring Loom 2.5 Metre to Suit Minn Kota - Ready Made with 50 Amp Circuit Breaker and Marinco Heavy Duty Thru-Deck Power Plug and Socket (th2.5)
• Wiring Loom 5.0 Metre to Suit Minn Kota - Ready Made with 50 Amp Circuit Breaker and Marinco Heavy Duty Thru-Deck Power Plug and Socket (th5m)