Leisure battery vw grande

[Twinw]

Vw grande I charged up my leisure battery to 90 % switched of the electrics 3 days later when I turned it back on leisure battery was at 50% that doesn't seem right to me anyone experience this

 

[WelshGas]

Vw grande I charged up my leisure battery to 90 % switched of the electrics 3 days later when I turned it back on leisure battery was at 50% that doesn't seem right to me anyone experience this

The % calculation is a not very accurate calculation . However the Voltage is accurate.

 

[Jester]

Vw grande I charged up my leisure battery to 90 % switched of the electrics 3 days later when I turned it back on leisure battery was at 50% that doesn't seem right to me anyone experience this

It’s quite likely even with all turned off unless you have solar, Do you?