12V Split Charge Relay Kit 140A with Pre-Wired Cables for Camper, Car & Boat

Variant

€56,95

Keep your starter battery protected while charging your leisure battery automatically. This split charge relay kit makes sure you always have power where you need it—and a reliable engine start when it matters.

No complicated wiring or guesswork. The intelligent voltage-sensing relay handles everything in the background, so your batteries charge safely while driving and separate when the engine stops.

Charge smarter and protect your main battery every trip

✅ Keeps your starter battery ready so your vehicle always starts

✅ Charges leisure batteries automatically while the engine runs

✅ No ignition feed needed, simplifying installation on modern vehicles

✅ Pre-assembled cables save time and reduce wiring errors

✅ Works across cars, campers, boats, and 4x4 setups

✅ Built-in fuse protection adds safety to your electrical system

The 140A voltage-sensing relay detects when your vehicle’s charging system is active. As voltage rises, it connects your leisure battery so it charges while you drive. When the engine turns off, the relay isolates the batteries to prevent drain—so your main battery stays ready to start.

This kit comes pre-wired with terminals and includes 3 meters of red power cable (split across multiple leads) and 1 meter of black earth cable. Fuse holders, fuses, battery terminals, and mounting accessories are all included, giving you everything needed for a complete install.

Ideal for camper vans, motorhomes, boats, and mobile work setups, it fits neatly into your electrical system without complex modifications. The included instructions and wiring diagram keep installation straightforward even for first-time setups.

Unlike basic wiring setups, this system automatically manages battery separation and charging without manual switches or constant monitoring, keeping things simple and reliable every trip.