Coupe-circuit de batterie — coupure rapide sans outil

Battery cut-off switch — quick disconnect, no tools

18,99 €

A switch that fits onto the battery's negative terminal and cuts the whole circuit with a quarter turn. For a vehicle that stands for long periods, a van, a motorhome, a classic car — or to work on the electrics without undoing a terminal with a spanner.

In stock — order processed within 24 hours

  1. Orderedaujourd'hui
  2. Dispatchedwithin 24 working hours
  3. Deliveredat the latest

Free delivery in mainland France. The dates are calculated on working days from today.

  • Free shipping, with no minimum order
  • Order processed within 24 hours — delivered within 7 working days
  • 14 days to change your mind, no reason required
  • Secure payment — we never see your card number
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Isolating the battery from the rest of the vehicle with a quarter turn, no tools.

Key points
  • Fits on the negative terminal: a quarter turn of the knob opens the circuit.
  • A car that stands for three weeks finds its battery as you left it.
  • No more 10 mm spanner to work on the electrics.
  • With the circuit open, the car will not start, whatever the method.
  • Insulated casing and wide knob, usable with gloves on.
What to know before ordering
Tension
12 V.
Fitting
On the negative terminal, standard car battery post.
Operation
Knob, no tools.
Security
Does not cut out while the knob is tightened: nothing to fear while driving.
Space limit
Check the clearance under the bonnet above the terminal: on some very tightly packed engines, a few centimetres are missing.
What is in the box
  • The cut-off switch with its knob.
How to use it safely
  • Never open the circuit with the engine running.
  • If you are relying on it as a security device, do not leave the bonnet release accessible in the cabin.
  • After a long disconnection on a recent vehicle, expect to redo the settings lost.
Check before you buy
  • Measure the clearance above the negative terminal with the bonnet shut: it is the only real constraint on fitting.
  • On a recent vehicle, be aware that a prolonged disconnection loses the stereo presets and sometimes the comfort settings.
  • Check that you can reach the knob easily: a cut-off switch you cannot reach is of no use.
Shipping & returns

Preparation : order processed within 24 hours, tracking number sent as soon as it ships.

Shipping : mainland France, within 7 working days. That is a maximum, not an average.

Shipping cost : free, with no minimum order.

Returns : 14 days from delivery, with no reason required.

Full details on the Shipping and returns page

Description

What it solves

A car left standing for three weeks rarely starts. It is not that the battery is bad: it is the alarm, the ECU, the stereo and the telematics unit drawing current the whole time. A cut-off switch isolates the battery from the rest of the vehicle in one movement, and you find it as you left it.

And for DIY work

Any work on the electrics starts with "disconnect the negative terminal". With this unit, no more 10 mm spanner and no more terminal put back crooked: a quarter turn of the knob and the circuit is open.

A safeguard against theft, too

With the circuit open, the car will not start, whatever the method. It is rudimentary, and it works — provided the knob is within reach and the bonnet release is not left accessible.

Before you order

This type of cut-off switch fits onto a a standard car battery terminal. Check that your bonnet leaves enough height above the terminal: on some very tightly packed engines, a few centimetres are missing. On a recent vehicle, be aware that a prolonged disconnection loses the stereo presets and sometimes the comfort settings.

Worth knowing

  • 12 V, fitted on the negative terminal, no tools for daily use.
  • Coque isolante and a wide knob you can turn with gloves on.
  • Does not cut the circuit as long as the knob is tightened: nothing to fear while driving.
  • Free shipping within mainland France, with no minimum order.
  • 14 days to change your mind, returns accepted with no reason required.

When it earns its place

The car that stands for three weeks

It is not that the battery is bad: it is the alarm, the ECU, the stereo and the telematics unit drawing current the whole time.

The classic car

It spends the winter in the garage. With the circuit isolated, the battery does not go flat, without undoing the terminal every time.

Working on the electrics

Any work starts with "disconnect the negative terminal". A quarter turn replaces the 10 mm spanner and the terminal put back crooked.

The motorhome between seasons

The same problem as the car that stands, only worse: more electronics on standby.

Questions we are asked about this product

Can it cut out while driving?

No: it does not cut out while the knob is tightened. The operation is deliberate, when stopped.

Will it fit my battery?

It fits onto a standard car battery terminal, the negative one. The only thing to check is the clearance above the terminal: on some very tightly packed engines, a few centimetres are missing.

Is it a security device?

With the circuit open, the car will not start, whatever the method. It is rudimentary and it works — provided you do not leave the bonnet release accessible in the cabin.

Will I lose my settings?

On a recent vehicle, a prolonged disconnection loses the stereo presets and sometimes the comfort settings. That is the trade-off for total isolation.

Do you need a tool to use it?

No, and that is precisely the point: a wide knob, usable even with gloves on.

Why order from Confort Cars

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