Boat originally had 3 identical lead acid batteries (2 house, 1 start). I replaced them over last winter with 3 exide AGMs and reconfigured the smart gauge for AGM mode but I allowed it to 'learn' the capacity of the banks rather than just charge them full and set the gauge to 100%.
After a whole season of use, I find that the most the gauge is reading is about 90% on the house bank. The bank is connected to a 50W solar panel and controller which after a day or two in the sun switches to float mode, so I know the batteries are topped off. With the old batteries, the smart gauge always read 100% when I came back to the boat after it had couple of days in the sun.
Is the issue with the gauge or with one or both of the house batteries? What is the best way to solve this?
After a whole season of use, I find that the most the gauge is reading is about 90% on the house bank. The bank is connected to a 50W solar panel and controller which after a day or two in the sun switches to float mode, so I know the batteries are topped off. With the old batteries, the smart gauge always read 100% when I came back to the boat after it had couple of days in the sun.
Is the issue with the gauge or with one or both of the house batteries? What is the best way to solve this?