Question: Battery Power

Hi Mapesy, I have removed my second battery and taped up the ends. Been OK for 12 months now. You might be able to remove the cable from the unit.

Hi Mapesy,

When you disconnect that cable at the 'second' battery terminal it is still 'live' from the other battery. So it must be isolated from that battery also before the loose terminal touches the body or chassis.

There should be a fuse in the cable between the two batteries and removing that fuse is the best option. In fact, if the installation was done correctly there would be a fuse at each end of the cable. Removing either or both fuses is the best way.

If there are no fuses in the interconnecting cable then remove the negative terminals from BOTH batteries whilst ever the positive connection is loose. Then if you wish to use the vehicle with the second battery out, remove the interconnecting cable from the first battery also while the negatives are still disconnected.

But be careful. You can get an almighty current flow if that cable touches the body whilst still connected to a battery.

As suggested above I would disconnect the cable at the main battery too, this will prevent the isolator switching on and off (wear an tear) for nothing.

I also recommend that when you fit the battery again that you test and check all components.

Regards

Derek from ABR

Thanks Guys,
You have answered my question nicely.
Cheers