pvb
Well-Known Member
Not quite able to tell from the photo if the grey box is a VSR (as others have said), though there probably is one on a reasonably new HR. What you can tell though is that the two 6v batteries don't seem to be secured down.....
At the top of the photo you can see part of an L-shaped cover which bolts down over the batteries to retain the batteries and to seal the compartment (note the rubber sealing strip). Hallberg-Rassy boats have a ventilated battery compartment, you'll see a grey corrugated hose in the compartment.