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« on: March 21, 2022, 01:40:04 pm »
This is a really useful thread. I am also having problems with my batteries. I have a new PC as of last October. So I would like to know more what is considered the best practices to maintain batteries when not connected to shore power and in covered storage (so solar does not help). I have been turning off house power, and running generator about 20-30 minutes once a month, which seemed to work for my previous RV. At first this seemed to keep batteries ok, generally 3-4 red lights on the battery display. But then after a few months it would get down to 2 lights within a month and the converter starting giving me the warning of low voltage. When I measured with a volt meter it was just below 12v so I worried that batteries were getting damaged. So I am thinking either batteries are defective or I am not doing my recharging enough, or there is something causing batteries to drain even though I have house battery power turned off I do have 2 6v AGM batteries, which is what most people seem to recommend. So I really don't want to replace these expensive batteries if if can avoid it, and certainly want to know what are the "Best practices" to maintain batteries in storage. I am thinking using a smart charger instead of just relying on built in inverter/charger may be required, as some others have recommended. Another side question is that some people have recommended using a battery meter plugged in to a cigarette plug to monitor voltage. But wouldn't this do the same as just checking the battery voltage on the inverter (xantrex freedom) display? I would like to do some boon docking this summer and so want to make sure batteries are up to the task.