A single turn of the black knob disconnects the battery preventing battery drain and electrical fires in classic and occasionally used cars, boats, trucks, tractors and other vehicles. A further few turns removes the knob making it a simple and effective anti-theft device.
eBay
Light Switch With LED Indicator Wall Reset Switch Intermediate Switch Return Switch White Glass Frame 16A Switch
Aliexpress UK
Battery disconnect switch rated current: 240A. 1x Remote battery disconnect switch. Key Feature Battery Protection.
eBay
BSEED EU Standard Curtain Switch Wall Switch Glass Frame Motorized Roller Blinds Shutter Switch Automatic Rebound Reset switch
Aliexpress UK
Important: Fully disconnect power before installation and perform an ignition test afterward. ☇Energy Saving & Theft Protection: This wireless remote battery disconnect switch operates at 12V/240A and has a standby current of only 3mA.
eBay
6A Toggle Switch Rocker SPST Contacts Switch 2 Foot ON/OFF Prewired Rocker Toggle Switch With Wire Switch
Aliexpress UK
1x Remote battery disconnect switch. Battery disconnect switch rated current: 240A. Trailing Arm Bush Removal Install Tool For Ford Mondeo Mk4 S-max Galaxy Volvo 06. 46pc Harmonic Balance Flywheel Balancer Crankshaft Gear Pulley Puller Tool Kit.
eBay
10A Emergency-Stop Button Switch Latching Button Switch 1NC E-stop Push Button Switch CNC Exigent Stop Switch
Aliexpress UK
1Pcs Car Battery Isolator Disconnect Cut OFF Power Kill Switch (Red Cover). Round disk pitch: 38 mm. withstanding current of this battery switch: 12V/24V 100A-400A. Waterproof cover can better protect key hole.
eBay
UK 13A Switch with Fuse Electrical Switch with LED 13A Switch Black White Grey Plastic Panel That UK Switch
Aliexpress UK
1 pcs new car battery disconnect switch. Negative pole cut-off function, safe and convenient: Compared with the positive pole cut-off, the negative pole circuit disconnection function reduces the risk of short circuit and is safer to operate.
eBay
AC 250V Toggle Switch Vintage Wall Switch Tumbler Switch Single Control Old Fashion ON/OFF Lamp Switch
Aliexpress UK
The switch can be either surface or recess mounted and is suitable for automotive applications with a continuous current up to 275A. Continuous current: 275A @ 12VDC. Includes mounting bolts and nuts.
eBay
Momentary Rocker Switch Waterproof (ON)-Off-(ON) 3 Position Marine Rocker Switch 12V 20A DPDT 7 Pin Boat Switch Toggle for Car
Aliexpress UK
Disconnect Switches can solve the power consumption caused by such problems, and can extend the battery power and service life of cars. Battery disconnect switch rated current: 240A. It can effectively protect and prolong the life of car battery.
eBay
Delviz Crystal Glass Switch, 1/2/3/4 Gang 2 Way Switch, Grey Tempered Panel, 86mm*86mm, No Logo, UK Standard Wall Light Switch
Aliexpress UK