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Battery drain and charging - off grid
2018 MicroMinnie 2108DS - lots of off grid camping. No solar. Use Honda EU2200i generator to recharge. 115Ah 12VDC deep cycle battery. on-board battery charger is 6amp per owner's man. Began to notice that battery not carrying trailer through the night. Battery test OK w/load. Delved deeper to find formula for time required to fully recharge is MUCH longer than it takes the on-board LED light to show full charge, like 6+ hours, so running generator 2hr in evening and hours or so in the AM is not recharging battery! Considering: 2nd battery in parallel $120, adding on-board more sophisticated battery monitoring system w/bluetooth $209, 10amp smart batt charger connected to batteries and plugged in when generator running $100. where to start? seems like 2nd battery may be best, 1st option? But then I still end up with two batteries not really even close to being fully charged with current generator run time, especially after 3-5 days off grid. thoughts? suggestions? options? THANK YOU!
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