Fails to initiate internal battery charging

Product Discussion BLUETTI AC Series
1

Hello Bluetti Technical Support Team,

I’m writing to report a recurring issue with my two AC200L power stations, purchased approximately four months ago. Both units have intermittently experienced the same malfunction (3-4 times per unit):

Issue details:

  • When the unit is connected to grid power during an outage
  • Upon power grid restoration
  • The station properly detects grid reconnection
  • Fails to initiate internal battery charging
  • Continues draining battery until complete depletion

Temporary solution applied:
Factory firmware reset through the mobile app restores charging capability.

Request:
Is there any firmware update available to permanently resolve this issue? I would appreciate technical guidance regarding this matter.

2

Hi @Rafael

for me its seems more like a issue with unstable grid voltage than a actual problem with your AC200L. Its highly unlickly that both units have the same error at the same time.

First of all, i just would to enable “Grid self adapt” mode. Which adapt your grid frequency to a certain part. If this still not helps, than a custom firmware can be pushed for lower voltage acceptance to my knowledge.

greetings
Erik

1 Like
3

Hi @Rafael, We believe this issue may be related to an unstable power grid.
Thank you to @Selfmadestrom for the analysis, it makes perfect sense, and your suggestions are spot on.
Yes, please provide the SN code and current firmware version of your AC200L, and we will push the new firmware for generator compatibility. Afterward, try enabling the Grid Self-adaption feature again.

1 Like
4

Hello friends of Bluetti:
Thank you for your reply. I will take your advice into consideration and let you know the results.
I would like to tell you that the two power stations have an important daily work regimen, I tell you this because we have experience of their use, and if you need it we are open to talk with you. We also intend to buy more stations from you, such as the AC200l or the new AC200P.
Kind regards!

5

Hi @Rafael, Thank you for your kind regards.
We hope everything goes smoothly from here!
Please feel free to contact us if you need our 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.

6

Hi @Rafael, It has been a while since we last received your feedback, and we are wondering if the issue has been resolved.
Please feel free to contact us if you need our help.