New l,ion batteries not charging on EHU.

[Bruce h]

I recently fitted two new lithium ion batteries,a VictronConnect solar controller and a battery to battery unit to take charge from the leisure batteries to the main battery when parked up. Everything worked just fine in France back in September. Today I find that both leisure batteries are totally flat whilst the motorhome is parked up in the building I constructed for it. So the solar panels are out of the equation. 240v sockets all work ok but no 12 volt at all. Any ideas?

 

[trevskoda]

Have you taken a reading with a multimeter at the batteries, is there a fuse gone.

 

[Bruce h]

Just found a blown fuse, strange because nothing has been active to cause a surge.

 

[snapster]

I wonder if it blew when you connected the EHU?