Re Crippled by an
Accessory (August 2018). In defence of the useful and very reliable battery isolator switch, I have fitted several cars with this device.
It’s a quick method of disconnecting a battery in an emergency, if the vehicle is stored for a period of time, or when a battery charger is used.
I use two as a simple and cheap way of manually controlling a twin battery system fitted to my Range Rover 3.5 V8. My brother now uses the system on his Toyota Landcruiser 4.5.
Both these vehicles have travelled afar in this huge land, with some very remote areas visited. Here we need to be self-sufficient, as after disconnecting one battery the other runs the camp lighting and the refrigerator.
No electrical problems have occurred that could be attributed to this system. I simply clean them and lightly spray with aerosol dispersant/lubricant (INOX), as I do with any battery terminal. Howard Marshall, Australia