Car Battery Power Cut-off Switch Circuit Breaker, Adjustable Pure Copper Stable Transmission High Conductivity 12v-24v Disconnect Switch Smart Car Truck Boat RV Supplies

Leave a 4WD or a boat sitting for a month and the alarm, the head unit memory and half a dozen modules keep sipping current the whole time. Come back and the battery is flat. A cut-off switch on the terminal breaks that path entirely, so the vehicle draws nothing at all while it is parked up.

Copper, because resistance turns into heat

The current path through this switch is pure copper, which is the supplier's stated reason for it running cool and passing current without noticeable loss. It is worth understanding why that matters on a battery terminal specifically: every milliohm of extra resistance in a starter circuit shows up as heat and as voltage the starter motor never sees. Copper keeps that overhead low. The supplier also cites corrosion resistance, which is the failure mode that actually kills terminal hardware on a boat or a coastal-run ute.

Terminals that rotate to clear the obstruction

The terminals on this one swivel, so the cable can leave at whatever angle the engine bay allows rather than forcing you to fight a fixed post against a bonnet brace or a strut tower. On a tightly packed bay that is often the difference between a switch that fits and one that goes back in the box.

Two positions, nothing to remember

Operation is mechanical and obvious. Raised through 90 degrees is off, lowered through 90 degrees is on — that is the supplier's description of the two states in full. Park the vehicle, flick it up, walk away.

Key features

• Pure copper conductor: the supplier's stated basis for low loss and stable current transfer.
• Rotating terminals: take the cable off at an angle that suits a crowded engine bay.
• Lever operation: up for isolated, down for connected, with no key or tool needed once fitted.
• Corrosion resistance: claimed by the supplier for marine and outdoor use.

Specifications

• Voltage: listed by the supplier for 12 V and 24 V battery systems
• Current rating: not published by the supplier — no amperage figure is given anywhere in the source material
• Conductor material: pure copper, per the supplier
• Terminal type: adjustable, rotating
• Stated applications: cars, trucks, vans and yachts

What's in the box

• Battery cut-off switch
• Tightening wrench
• Spacer

Before you wire it in

• No current rating is published for this switch. Do not assume it suits your vehicle's cranking or accessory load — have the figure confirmed before fitting it.
• The supplier's parts list names a 12 V switch while the title covers 12 V to 24 V. Confirm which you are getting if your system is 24 V.
• Anything spliced into a battery terminal is worth having fitted and checked by a qualified auto electrician.
• Check the terminal post size and clamp diameter against your own battery before ordering.

Sensible insurance on a vehicle, boat or van that spends more time parked than moving.

Returns, Refunds and Replacements

Products that are received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with the Australian Consumer Law (ACL). We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. However, please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations.

Delivery Timeframe

Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows:

For customers in Victoria, approximately 7-10 working days;
For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days;
For customers in WA, NT, and TAS, approximately 9-12 working days.