Hi... I have a pretty simple set up on my 36' sailboat. 2 deep cell batteries and 2 solar panels
and a switch to preserve one battery
for cranking (1,2, off or both). All went well for about 4 years. All of a sudden the fluid levels in the batteries was being drawn down. I bought a new set of batteries last week and the same thing. I asked at a battery
shop and they said it might be a blown diode/anode in the solar regulator
that was letting the batteries drain back out at night...?? Well... I am not familiar with this opinion. If true would that deplete the fluid levels?
How do I find out what is wrong. Is there some measuring device?
I have very limited draw right now. Just interior
lights and notebook computer off the inverter
. No refrideration etc... I have been at anchor
over the winter so not using radar
, depth sounder