AC500 & B300S - 054 D-BAT Drained


After purchasing the AC500 with 1 B300S battery, when I started to use it I noticed that the battery would go from around 40% to 0% very quickly after the unit has been on for a couple of days.

I further investigated this by removing all load from the unit, but keeping the AC on to see if it was caused by a surge in one of my appliances. After running like this overnight the same thing happened. The battery lost all its charge very quickly, with no reason or load on the system.

Having looked on these forums, I see something similar being reported across different models with the proposed solution being to fully charge and discharge the unit twice to calibrate the battery. The first time I did this, the unit went from 39% to 0% in 4 mins (I managed to witness it happening) and the second discharge took it from 48% to 0% in 5 mins.

There’s definitely a problem with my unit, can you help please?

Here are the details which may help:

IOT: v9041.03
ARM: v4048.02
DSP: v4047.06
BMS: v1022.09

SN: AC5002232000031009


@Rich1 054 can be cleared when SOC>5%. The firmware version is the latest. When the SOC reaches 0%, please try to charge it with an AC cable without interruption. If the charge and discharge cycles do not work, you can contact the after-sale service for a replacement.

@BLUETTI Yes I’ve already tried charging without interruption using the AC cable then discharging, so I need a replacement. Please tell me who to contact to get this resolved.

@Rich1 You can message me which platform did you buy from and the order number, then I will provide the contact and forward your request.

@BLUETTI It was bought on Indiegogo, contribution number 5448.

Please note that I’ve already emailed multiple times over the last 3 weeks without response, so if you’re going to suggest that to me, please don’t. I need a contact that will actually respond and help me please. Are you able to contact them internally within Bluetti to look at my problems for me?

@Rich1 I have left a message. They will contact you ASAP. You can check your email later.

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@BLUETTI_CARE they have just emailed, thanks a lot.