SimonM
Full Member
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- 891
Just recently I have made several alterations to my leisure battery setup
To my existing 220w solar panels I now have a MPP250 controller, NASA BM2 monitor, a solar monitor, a Ring B2B and finally 4 new Bosch L5013 batteries.
Fully sorted I thought ? . But no, although when I check the battery levels during the day it’s always showing 104% charge and 13.5v and the starter battery at 12.5v.
Some days, like today at 9.00am when I just looked, it is only showing 85% charged and 14.4v and 13.3v respectively. So despite the overcast gloom there is a charge going in to the batteries, but why oh why is it only 85%?
All of the internal power is switched off at the master switch, the only power direct is the radio display, but that’s only going to be millivolts I guess, and a bit for the Cobra alarm (that maybe through the starter circuit)
So where’s the missing power going from? If there is something draining it overnight I’m not sure where to start looking. Suggestions please.
To my existing 220w solar panels I now have a MPP250 controller, NASA BM2 monitor, a solar monitor, a Ring B2B and finally 4 new Bosch L5013 batteries.
Fully sorted I thought ? . But no, although when I check the battery levels during the day it’s always showing 104% charge and 13.5v and the starter battery at 12.5v.
Some days, like today at 9.00am when I just looked, it is only showing 85% charged and 14.4v and 13.3v respectively. So despite the overcast gloom there is a charge going in to the batteries, but why oh why is it only 85%?
All of the internal power is switched off at the master switch, the only power direct is the radio display, but that’s only going to be millivolts I guess, and a bit for the Cobra alarm (that maybe through the starter circuit)
So where’s the missing power going from? If there is something draining it overnight I’m not sure where to start looking. Suggestions please.