Changing Leisure batteries that are connected to solar panels (1 Viewer)

[gerry mcg]

Quick question.
If I'm working on / swapping my leisure batteries and they are connected to my victron MPPT solar controller, is it sufficient to remove the fuse from the solar controller to disconnect the panels from the battery?

And likewise, when reconnecting the battery etc, I understand the battery should be connected to the MPPT first, then the PV panels. Is connecting the battery, followed by replacing the fuse sufficient?

The MPPT is awkward to get to, but the fuse is accessible

 

[Bolti]

Is there a fuse inline from the panels to the Mppt? That would be the one to pull.

 

[Mikeco]

I removed the fuse but also covered up the solar panels as well.

^{_{Subscribers  do not see these advertisements}}

 

[Manic]

Best not to disconnect the solar whilst under load so cover or disconnect at night.

 

[gerry mcg]

Is there a fuse inline from the panels to the Mppt? That would be the one to pull.

Unfortunately not

 

[Tombola]

as long as the fuse kills the MPPT then yes

^{_{Subscribers  do not see these advertisements}}

 

[gerry mcg]

I can reach the terminals on the MPPT, so can remove them if necessary and cover with electric tape. Refitting is more awkward and means removing the MPPT to manipulate the cables before refitting.
Not impossible, just awkward

 

[gerry mcg]

as long as the fuse kills the MPPT then yes

The fuse appears to kill the solar input, but as far as I can gather the Victron MPPT stillness appears to be powered on asked it is receiving power from the battery

But I'm sure there will be an inline fuse at the battery end of the MPPT cable

 

[MichaelT]

I just unplugged my solar controller from the EBL when I changed mine.

^{_{Subscribers  do not see these advertisements}}

 

[Tombola]

The fuse appears to kill the solar input, but as far as I can gather the Victron MPPT stillness appears to be powered on asked it is receiving power from the battery

But I'm sure there will be an inline fuse at the battery end of the MPPT cable

if it kills the MPPT then that ok, as the battery connection will be just that....12v which can be disconnected at either end, but battery end in your case to replace them.
rememebr to reconnect the battey first though as you said.

 

[robnchris]

I just covered the solar panel, pulled the fuse, swapped the batteries over and voila job done.

 

[gerry mcg]

I just unplugged my solar controller from the EBL when I changed mine.

My solar is wired direct to the leisure batteries, bypassing the EBL

^{_{Subscribers  do not see these advertisements}}

 

[bigtree]

I swapped mine at night, job done.