AC300 Went from 36% to 0%. Why?

Product Discussion BLUETTI Apex & AC Series
1

Dear Bluetti Community,

This morning while I was heating water for coffee, my AC300 went into alarm for a 054 error–the DBAT drain error. What was alarming was that I was on 36% and my water had only been heating for maybe a couple minutes.

I have already checked that my cables are well-connected. Can anyone else try to offer some trouble shooting or hypotheses about why this happened? I won’t be able to plan my days around the AC300 if I can’t predict that it won’t shoot down to 0% at random points.

Thanks for your time and consideration.

2

Hi @bluettiover, From the error code, it seems that the battery may be low power, and also, low temperatures can cause errors as well.

We would like to know how many batteries are connected to your AC300 and the current charge levels of each. Could you try disconnecting the batteries and charging the one with no power separately? Does that help?

Additionally, please power off the device and place it in a warm area for about 3 hours.

Once the issue is resolved, we recommend recalibrating the battery to help restore its optimal state.