Mastervolt Charge Mate Pro 40 - Electronics Charge Relay [83304002] Automotive/RV This significantly reduces the risk

This significantly reduces the risk of a flat starter battery for example

this cable provides data only and CAN NOT be used to power the GP33

000 lumens of lights and focuses it from bow to stern

Durable Construction

Mastervolt Charge Mate Pro 40 - Electronics Charge Relay [83304002] Automotive/RV This significantly reduces the riskCharge Mate Pro 40 Electronics Charge Relay Current limited electronic charge relay with high efficiency and reverse current protection A secondary battery on board requires a dedicated charging solution. The Charge Mate Pro makes it possible to distribute the charger or alternator current effectively between two battery banks such as a starter and a service battery. The Charge Mate Pro connects both batteries during charging and keeps them isolated