Battery not charging on shore or solar power

neilstanton

Member
Joined
Oct 19, 2022
Messages
10
Location
Memphis, TN
2022 imagine xls 23LDE is less than 2yrs old. One 165w solar panel, furrion mppt 25a, interstate 80ah lead acid. No problems until now. Third day camping come home to warm 12v fridge. Battery meter on docking station shows 3% and not charging- despite bright sunny day and plugged into shore power the whole time. If I hook up to tow vehicle battery it shows charging and I’m keeping the fridge cold by periodically running it up to 20% charge. Disconnect from vehicle and it starts to drain. Lippert control center shows battery fully charged the whole time. Mppt shows flashing green (charging) when sun is out but battery meter never shows charging unless connected to vehicle. All 12v circuits have power, fuses all good that I can find. Just seems like converter nor mppt will charge the battery and fridge coming directly from the battery drains it. I don’t have a digital volt meter on right now but will soon. I’m stumped so far.
 
2022 imagine xls 23LDE is less than 2yrs old. One 165w solar panel, furrion mppt 25a, interstate 80ah lead acid. No problems until now. Third day camping come home to warm 12v fridge. Battery meter on docking station shows 3% and not charging- despite bright sunny day and plugged into shore power the whole time. If I hook up to tow vehicle battery it shows charging and I’m keeping the fridge cold by periodically running it up to 20% charge. Disconnect from vehicle and it starts to drain. Lippert control center shows battery fully charged the whole time. Mppt shows flashing green (charging) when sun is out but battery meter never shows charging unless connected to vehicle. All 12v circuits have power, fuses all good that I can find. Just seems like converter nor mppt will charge the battery and fridge coming directly from the battery drains it. I don’t have a digital volt meter on right now but will soon. I’m stumped so far.

Those symptoms are generally due to the battery disconnect switch being in the wrong direction. Plus an 80 Ah LA battery won't carry a 12-volt frig for very long.
 
Battery has carried the fridge overnight with 30% drain on battery. This discharge occurred during daylight with shore power and solar on. Still weird that control center shows battery fully charged when it clearly isn’t. Solar generating about 20v but battery barely charging.
 
OP bonehead here. Found battery disconnect switch off. Must have bumped it? Converter not able to charge battery and fridge plus lights drained it beyond solar capacity. I think all is good, except maybe LA battery suffered some damage from discharge. Thanks
 
One final note. As stated I found the red battery disconnect switch not fully engaged. Once corrected, shore power charging proceeded normally. The only remaining issue is the Compass Connect control center never showed the battery to be at all depleted. It always showed fully charged, while the disconnect switch was unknowingly off, and after I turned it back on. The battery took a full day to recharge, with the battery monitor at the docking station showing from 5% to 95% as it recharged, but the Compass Connect battery indicator (next to tank levels) always showed fully charged. I will look more into that. It would have been an earlier sign of a problem if it showed less than fully charged.
 

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