

🔌 Power your adventures with smart charging—never get stranded again!
The 3m Split Charge Relay Kit by HC-Cargo is a premium 12V 140A voltage sense relay system designed to safely and intelligently charge leisure batteries from 75Ah to 220Ah while driving. Featuring high-flex 110A cables, comprehensive installation accessories, and a protective conduit, this kit ensures reliable power management for camper vans, 4x4s, boats, and more. Its smart voltage sensing technology isolates batteries when the engine is off, preventing starter battery drain and guaranteeing vehicle start-up every time.
| Manufacturer | Simply Split Charge |
| Brand | HC-Cargo |
| Manufacturer reference | SCKC303 |
| Manufacturer part number | SCKC303 |
| Lift type | Automatic |
| Voltage | 12 Volts |
L**S
Brilliant piece of kit
Fitted it to my van. Has been working great.Instructions are very clear. finding a hole or making a hole to run the cable to the car battery was a bit tricky but it depends on the model. Some models have easily Accessible pre drilled holes. My kangoo was a bit of a nightmare. I had to remove my car battery and air filter to gain enough access to drill a hole. Once this was done it was very easy. Ran cable into cab under the passenger door seal and into the back where my deep cycle battery is located. so much easier than taking it out every couple of weeks to recharge. once fitted just drive around and the battery is charged. Very happy.
A**R
Good product
Fitted this to my T5. Easy to fit and good instructions. Works a treat 👍
M**E
Worth every penny
Great bit of quality kit put together for nice fittings used would defo use again
R**Y
As described - Works well
Superb piece of kitworks really well
F**A
Used in transit with leisure battery in rear
Perfect. Does what it sais on the tin. Easy install. Plenty wiring + connectors.
P**N
very good product
great for my van
M**T
great product
excellent product easy to fit
A**R
Definitely recommend this
Great kit (140amp) keeps my 2 110amp leasure battery’s topped up nicely, the kit has everything you need.
Trustpilot
1 day ago
2 months ago