Ladestands und Firmwareproblem

Hi Bluetti,
I have two problems. My system jumps from 60 to 20 Percent load within seconds.
AND I dont get newest firmware Updates. I tried serveral times but my app (two devices) says “no firmware update available”
System: AC200MAX
SN: 2236001315257
ARM: 4008.03
DSP: 4005.08
BMS: 1017.03
Can you help pls?

Hi @TheACF, We have a new firmware could resolve this problem.
We have applied to upgrade your BMS, our IT department will push the latest version of firmware to your machine in 24 hours. Please upgrade it tomorrow.
Please disconnect the battery pack from the AC200MAX, and do not load any device when upgrading it.

After that, please connect the B230 and try to do a complete cycle of discharge and charge to correct the SOC. The problem will be resolved.
Please follow the steps below to recalibrate it:

  1. Please discharge all the power (charge AC & DC appliances with the power station) until the SOC is 0%, turn off the machine, and leave it for 3 hours till it cools down.
  2. Please charge it again, please do not load any device when charging it, and do not interrupt it while in charge.

You can click this link for reference.

Please let us know if it does help.

By the way, please note that if you need my assistance, please @BLUETTI_CARE, otherwise, I might not see your message and be able to help you promptly.