5mtr Split Charge Kit with 12V Durite 0-727-33 140amp Voltage Sense Relay + 110amp 16mm Cable

Top quality Professional Medium Duty split charge relay system/kit supplied with 110amp 16mm cable

Suitable to install into most Camper Vans, Motor homes, 4x4s, Day Vans, Mobile workshops, Cars and Boats. 

You will be supplied with everything you need to fit this kit

  • 12v 140amp Voltage Sense Split Charge Relay
  • 5mtrs 110amp 16mm Red Power Cable
  • 1mtr 110amp 16mm black Earth Cable
  • 1 x Pair 8mm post type battery terminals
  • 2 x Fuse holders & 100amp Fuses including spare.
  • Crimp or solder ring Terminals to connect everything together.
  • Heat shrink to protect all the connections.
  • 15 x Cable ties + 10 x adhesive cable tie fixings to keep everything tidy.
  • 15 x fixing screws
  • Drill bit
  • 2 x sticky pads to use if required
  • 2mtrs Split Black plastic conduit to protect cables in Engine bay.
  • Easy to understand Fitting Instructions + after sales support if required

A very simple kit to install, all you need to do is to connect your starter battery to your leisure battery(s) by using the kit supplied, with the easy to understand fitting instructions and a wiring diagram.


The voltage sense relay simply detects the rise in voltage from you vehicles charging system when it exceeds 13.3v to allow you to charge your leisure battery(s) while your engine is running. 

When your engine is switched off and the battery voltage drops below 12.65v the relay will isolate your leisure battery(s) from your main starter battery so it does not drain your main starter battery and you will always be able to start your vehicle. 

All of the range of 140amp voltage sensitive relays are dual sensing meaning that if a charging voltage like through a mains charger or solar panel is applied to the leisure battery that exceeds the relay activation voltage of 13.3v it will activate the relay to allow this charging device to also maintain the starter battery.

Additional Information

  • Relay activation voltage 13.3v
  • Relay isolation Voltage 12.65v +/0.1v
  • Duel sense operation

Voltage sense systems are especially suited for modern vehicles as this type of system does not need an ignition feed or any additional wiring into your vehicle but for modern Intelligent smart ECU charging vehicles with Euro5&6 engines you will need to use a DC to DC charger.

Our aim at Simply Split Charge is to supply you with the best, top quality Split Charge kit available, at the best price we can. All the components in all of our split charge relay Systems are all fully E-approved and Tested top quality UK supplied parts. In all of our kits you will find everything you need plus spares to install any split charge system to any vehicle with our help and support if required.