Do I need to disconnect leisure battery?

[Oli83]

Hi,

I’ve installed a split charge relay in my 2003 Peugeot Boxer minibus. It’s being converted to a campervan and so now ready to install the rest of the electric system.

I’m adding in a small 12v fuse box and wondered if I need to disconnect the leisure battery before starting to install the electrical components?

Thanks

 

[ian.]

Better safe than sorry, always disconnect before doing work.

 

[Oli83]

Better safe than sorry, always disconnect before doing work.

Thanks! Does it need to be both leads or can I just disconnect the negative? Sorry if that’s a stupid question

 

[dmxtothemax]

You only need to lift one cable,
Either one, it doesn't matter a great deal which one.

 

[PEG]

Hi,what on earth have you fitted a 1950's charge device for?

There are much,much better ways of doing this task.

 

[PEG]

....I am going to be cheeky,now,and suggest that i have not had a reply,because the OP was charging their laptop,in the camper,and the battery went flat....the vehicle was started....the load presented by the depleted battery,exceeded the capacity of the split charge fuse - which blew,and now it's still flat...another fuse goes in....pop!
The old battery charger comes out,and on the leisure battery....after a while,it comes up to a point,where another fuse (No.3) goes in,and the vehicle's alternator,plays "OPEN THE BOX" with the voltage/load it senses....

If i had a pound......

 

[Deleted member 26818]

You’d spend it in the pound shop.