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Suggestion Time Based Toggling to switch off AC in 12000xp (in addition to SOC)

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Posts: 2
Topic starter
(@tim-cora)
New Member
Joined: 4 weeks ago

We use the 12000xp in our off-grid cabin connected via starlink for remote monitoring. We are only at the cabin part time. Even though we have a substantial number of  solar panels connected, during long winter nights, the battery keeps going down and down day after day until it reaches the SOC cut off, at which point it recharges for few days then comes back online once the batteries are able to recharge again.

It would be very helpful to have a feature where by we could shut off the AC output based on time of day, so that AC was only running say from 9am till 4pm (or whatever time the user set for it) each day during the winter. This would reduce the battery usage overnight (while we aren't there anyway).  This would be very helpful for our use case and I'm guessing others might find this feature helpful too.

Thank you for a great product and thank you in advance for considering this feature suggestion. 


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Posts: 118
(@dtbaker61)
Estimable Member
Joined: 1 year ago

A hibernate mode might be interesting for cases that want to minimize AC out to Loads.

However, if you have turned off your refrigerator and all heating when you are not there in the winter.... I'd bet that you are having an issue with batteries dropping below 32F and not accepting a charge even when the sun is out for days at a time ?!

The 12000xp itself draws around 100watts, and the starlink maybe another 100watts ? Together, they might consume around 4.8 kWhr per 24 hours. So the question is how much battery do you have? 10 kwhr ? (should get you thru a 2 day snowstorm)

Do you have any heat tape/blanket, or self-heating batteries ? Can you construct a "winter box" enclosing the inverter&batteries such that the inverter heat keeps the batteries >32F ?


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Posts: 2
Topic starter
(@tim-cora)
New Member
Joined: 4 weeks ago

yes, even with **everything** (except for starlink) off during the darkest snowiest days of winter -- in Canada -- the EG4 burns more power than my panels can produce. It isn't a 2 day snow storm, but just generally cloudy short days plus periodic snow that all add up. I do have a winter box for the batteries. based on temperature monitoring (and a well insulated cabin), this was a pretty warm winter and the self heat never actually kicked in. So that wasn't the problem. Overnight, the battery looses about 15% of its power just doing almost nothing. Whereas, if the AC is turn off (by the SOC controller) it burns much less overnight. This "hibernate" feature as you call it would definitely make things easier for me


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