Ok on a previous thread HoffaLives asks does everyone learn the hard way?
I DO!!! I checked my two house batteries 12v 90a @ and they were bone dry... OOooops!!
The starting battery 12v same thing, but fortunately my two 12v batteries for refridge are fine. All were installed 3 years ago. They were a bit neglected and tottally discharged after Katrina... the boat was floating no obvious damage and the waters too nasty to even approach, figured batts were the least of my problem then.
Last time we used them was a month ago we were out for 3 days with no obvious power problems.
I have checked level often, but lately I had only checked the refrg batts since they are easier to access and are used more(fridge allways on) I figured these would loose fluid faster. If these were fine then the others should be fine also. WRONG.
After reading many of your posts on the subject I opted to replace my house bank with two Trojan 605 golf cart batteries and a 12v 1000a for starting.
Now I have two questions...
Many say a battery should not go below 50% before recharging, How does one know when this 50% is? How is this measured?
The boat is on shorepower batteries are on charge with Guest chargers ... house bank @ 30a - frdge @ 20a - start @ 15a.
Would the charger allways on be detremental and should they be run down periodically or atleast charger off for periods of time ?