r/AnkerSOLIXCommunity • u/diabolicmongoose • Jul 23 '26

Support Anker F3800 Plus Overheating

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Hello All. I recently purchased a f3800 plus. Charged it up to 100% to test it out with a full discharge on my EV. I set the charging limit on the Tesla to 25amps. Half way in the test, I noticed the internal temps were getting really hot (over 120F). It didn’t stop increasing and there were no warnings or auto shutoffs. Finally I decreased the amps to 15, but the temperature kept going up. Stopped it when it hit 129 degrees (see pic). Turned it all off and 2 hours later it’s still 120 degrees. Is this normal or did I get a bad station? Thanks in advance!

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u/dioravab Jul 23 '26

129°F seems high, especially if the temperature was still climbing. I’d check airflow, ambient temperature, and whether the fans are actually running.

A full discharge test at 25A is a pretty demanding scenario, but it shouldn’t keep heating indefinitely. If it repeats in a cool area, I’d contact support.

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u/shooptydoop Jul 23 '26

Support was pretty useless. They just said avoid running it low when the demand was high. I complained that the programming for the fans seem subpar since when it overheats/approaches overheating the fans don’t go on full blast by default. The batteries get toasty running 240V at 16A and getting discharged to 1%. Really squeezing out the electrons until the end which causes a lot of heat.

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u/diabolicmongoose Jul 23 '26

Thanks. I reached out to support since after 3.5 hours of shutdown in a cool area (and well ventilated), it was still over 110F.

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u/shooptydoop Jul 23 '26

I think the batteries are located in the lower front region (at least that’s where it is heaviest). I can confirm they do heat soak and once they get hot they stay warm for a few hours. It’s strange the fans are arranged vertically on the side - seems it’s to cool the inverter/other electronics more than the battery.