Change two Leisure Batteries

[Peter and Julie]

Happy New Year to all!
I'm going to have to change my leisure batteries. Is it ok to leave one connected whilst replacing it for a new one ? Then after, connected change the other one. Just thinking this might mean I don't have to reset/disconnect solar panels etc as there would still be 12v in the system, so to speak.

 

[Wildbill]

Make sure you discomect the soler panils first or you will burn out your controller and cuver pantile with a mat or sumthing
Bill

 

[pappajohn]

Make sure you discomect the soler panils first or you will burn out your controller and cuver pantile with a mat or sumthing
Bill

Read the post again Bill.

 

[Wildbill]

When reconnecting battery's first then soler pantile
Bill

 

[Wildbill]

When reconnecting battery's first then soler pantile
Bill

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[pappajohn]

It will be fine doing as you suggest.
As long as at least one battery is in circuit at any time everything will be OK.

 

[Wildbill]

Read the post again Bill.

Still better disconnecting soler in my opinion
Bill

 

[pappajohn]

Make sure you discomect the soler panils first or you will burn out your controller and cuver pantile with a mat or sumthing
Bill

When reconnecting battery's first then soler pantile
Bill

they are replacing one battery while leaving the other connected then replacing the second Bill.
At no point will there be no battery in circuit..

 

[DBK]

What you suggest will work.

But you can disconnect both batteries depending on what sort of controller you have. If it's a Victron then it will remember it is 12 volt so there will be no problem disconnecting the batteries.

For other controllers change the batteries at night or throw a blanket over the panels.

 

[Peter and Julie]

Thanks for the prompt replies. Peter

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[andy63]

Just thinking this might mean I don't have to reset/disconnect solar panels etc as there would still be 12v in the system, so to speak.

I dont see the problem...
Simplest and safest way is just disconnect the solar by pulling the fuse... and change your batteries..
depending on how your batteries are wired in to the van you would have to ensure a 12v supply all the time by using a jump wire maintain a permanent supply as you removed each battery..
Ive never had a issue with any solar controller once it was set up and working during disconnecting batteries..
If there is a concern about the order of connection after installing new batteries just disconnect the panels at the controller until you replace the fuse in the feed from controller to battery... but as i said never been an issue and i frequently have the fuse out of the battery feed from the controller without disconnecting the panels..
Andy