Hello Bluetti Team,
i have 2 Problems with my EB3a.
Problem 1:
Sometimes the device turns off at 20% or below and it’s dead. It doesn’t turn on again and it’s not possible to charge it via Solar or Car socket, only charging with AC brings it back to life. Then it starts at over 20% and after full charge and discharge it works fine for a few days.
This error occurs after the last firmware update. Before this update it just jumps to 0% in this case and i was able to charge it via solar or car socket.
Problem 2:
I’m not able to charge the device on my Inverter. I have a pure sine wave 230V inverter and when im charging the device stops and start charging every few seconds in a loop. It’s the only device that not works correctly with the Inverter.
Maybe you can push a Firmware Update to my device.
SN: EB3A2227001758801
230V Version
ARM: v2061,02
DSP: v2052,11
Welcome @Cybermitze with problem 1 sounds like you need to recalibrate the battery - charge to full from ac with nothing connected to the unit then discharge in one single motion no stopping until the unit completely shuts down then charge from the ac again with nothing else connected. It happens sometime after an update I usually calibrate all my batteries every 3 months to keep them running at 100%.
Problem 2 will it take a charge form a solar panel ok are you getting any error codes.
Problem 1:
I calibrated the battery several times. After calibration it works fine but when i don’t use the device for a while (maybe 1 or 2 weeks) and discharge the battery at very slow rates this error occurs. Before the last update it always jumped e.g from 23 to 0 and i was able to recharge it via solar or car socket. Now the device is dead and I have to charge it via mains when it happens.
I take your advice and try to calibrate the device like you described.
Problem 2:
I can charge with solar or 12V car socket without any problems (except when problem 1 comes up). Only charging on my pure sine wave inverter causes this start-stop charging error. Charging via mains works like a charm.
Hi @Cybermitze, We have arranged to push the new firmware DSP v2052.51 for you, which will be completed within 24 hours. This firmware optimizes the performance of the EB3A during generator charging and supports more generator models.
Please upgrade tomorrow, and ensure no devices are connected during the process.
Thank you, @Ktt, for your response. Yes, we would like to know the specific error code.
When the issue occurs, please press and hold both the AC and LED power buttons simultaneously to view the error code.
This information will help us further investigate the issue.
Additionally, since you mentioned the problem occurred after a firmware upgrade, could you specify which firmware it was—DSP or ARM? We also wonder which country version of the unit is, can you let us know?
