Hi @BLUETTI_CARE thank you for your answer.
I was trying to use different ports or cables but the result is the same.
Also thank you for new BMS version pushed to my B300, but I can’t install it.
After transferring files, the app shows me that unzipping is in progress and progress stopping on 50%. Later it interrupts with the error “BMS upgrade failed. Data error. Upgrade canceled.”
Hi @Filosof, Regarding this issue, please charge the battery pack first, as upgrades cannot proceed when the battery level is too low.
Additionally, when the upgrade reaches 50%, try toggling the lock on the connection cable to the Unlock position without disconnecting the cable. Then, continue with the upgrade. This helps ensure a successful update. Once the upgrade is complete, please switch the cable back to the Lock position.
Thank you, @BLUETTI_CARE, for your instructions. The new BMS version works!)
The battery was updated successfully.
The app and screen on ac200pl show that the battery and ac200pl work in parallel.
During discharging, they also work in parallel.