Disconnectable Earth Leads

This is exactly the same as our standard earth lead kit except that it comes with a quick disconnect battery clamp.

This allows you to quickly disconnect the power from the car using no tools. This is good for:

Increased security - makes starting the car a little bit harder even if they have the keys.

Reduces battery drain - if you are going to leave the car unused for a while or have something unknown draining the battery.

Car keeps going into safe mode - if you need to quickly disconnect the battery to clear the fault and reset safe mode, this save you breaking out the tools every time.

Electricity takes the route of least resistance back to the battery earth. If you have a poor earth connection, the current can pass back along other cables causing unusual problems to occur. I have managed to have the headlights come on with the brakes and even had the heater blower sucking air in. Poor earth connections will generally affect things that can run a reverse voltage like bulbs and motors.

As the quality of the earth connections deteriorate it can cause unusual temporary problems plus you may notice a drop in performance, lesser MPG and an increased electrical noise through the speakers.

This can be made worse when an amp is installed, even though the amp is earthed the standard earth cable cannot handle the extra load.

Upgrading the quality of the earth cables and the connections allows the electrons to flow at their full potential. This makes the whole process more efficient and allows all the connected devices to work more efficiently as well. Upgrading can:

Reduce electrical noise

Increase the efficiency of the spark plugs

Increase the efficiency of the engine

Increase the MPG

Give more power


With the kit you get the engine earth lead, battery earth lead and battery earth clamp.

May not be suitable for the MHD.

Compatible with:

  • 450 Style Fortwo
  • 451 Style Fortwo
  • 452 Roadster
Our Price £30.00
(excluding postage)
Buy Now
Smart Mods, the home of smart car modification
About Us | MP3 Leads | Earth Kits