Hi, I am a happy owner of an AC200 Max Combo with PV and 2xB230 battery modules. The systems works great for discharge, however, I have discovered an issue with PV charging in particular.
When the B230 modules are connected to the AC200 Max or to a separate AC charger, it looks like they are not charging unless you hit the power button on the B230. This is a major inconvenience!
I typically charge from solar with the battery modules connected to the AC200 Max and the main unit automatically powers up in the morning when the sun comes out, but the battery modules remain off and I manually have to turn them on to start charge. Is that how it is supposed to be?
Is there a firmware update that can fix this so the battery modules also wake up?
This seems like a major flaw with an otherwise excellent system.
Sorry for the inconvenience.
If the B230 battery is off, you have to turn it on manually.
There is no firmware update at the moment that can solve it.
Our technical team will focus on it later.
Hi Bluetti Admin, thanks for the reply, so to clarify, the B230 modules are not currently supposed to wake up when solar charging is available like the AC200 Max is?
You would have to turn them on manually to start charging?
Seems like a major inconvenience that should be fixed with high priority or you would miss out on charging (unless you wake up early…).
Hi Admin, one more clarification, so you can test this. It happens as the AC200 Max turns off (I do have ECO mode on) after PV charging during the day, it also turns the battery modules off regardless of state of charge. Then the next morning, only the AC200 Max automatically turns on when it senses the PV voltage. The B230’s stay off. That is the issue. If they also woke up, like the AC200 Max, everything would work as one expects.
Thank you for your clarification.
I have checked it with my colleague. Yes, you’re right.
The unit will turn off after you fully charge it. And it will be activated after recharging it with solar panels.
The battery will not turn on automatically when connected with AC200MAX which is charging with solar panels. While it can turn on automatically when it only connects with solar panels.
I am also a new owner of the AC200MAX with 1x B230, and this is a very inconvenient issue for me too. The B230 won’t auto switch on when AC200MAX starts charging in the morning. I am currently putting on hold purchasing another B230 until Bluetti updates the firmware.
@daninus1 - I am currently considering purchasing a SwitchBot to do this job for me when I am not at home A bit ridiculous considering the B230 is not cheap!
Hi @Wex , B230 connects to the AC200MAX for solar charging and requires an additional D050S to do so.
Here is a link to our D050S purchase which you can click on to view, thank you DC Charging Enhancer (D050S)
Wait, actually the AC200max does charge itself and the b230 with solar going only into ac200max. Saw this in real-life. You could boost the solar going in by having the dc charge enhancer though
Thanks Bluetti for confirming the observation of owners of B230, B300. Openess give buyer confidence.
I stand corrected I may also have seen someone use the enhance charger plug into the B230 and added solar panels, seemingly resolving the issue temporarly.
Waiting for the fix first before I would even consider the B230, probably would choose B300 as I suspect has extra features. I haven’t compared the unit yet.
Our Ac200max is linked to a b300 with the thick power cable that comes with the b300. When the Ac200max is connected to Solar it charges both at the same time. Same if the Ac200max is connected to a single or dual PSU’s. The b300 also has its own psu input and Solar input. If b300 is powered off it stays off until manually powered back on.
Has this particular issue been resolved? I recently purchased an expansion battery and didn’t realize until AFTER I purchased it that this was a known issue…and a very inconvenient issue at that.
This is a long standing issue. I have 2 B230’s attached to my AC200max.
The only way you can do what you are wanting, is to somehow STOP the B230 from going to sleep in the first place. So Bluetti, even though there is no ‘wake up’ circuit in the AC200max, for the external battery, you COULD add a firmware option to tell the AC200max to NOT turn the B230 off in the first place…
I HAVE suggested this in the past, but got no reply.
In the meanwhile, your only option is to stick a small USB drive into the B230, so that it can sense the very small power draw, and that’s enough to keep it alive all night - although it will use about 1% of the battery overnight.
However, I don’t know if it’s OK for the B230 to run 24/7 or not. Maybe someone can let us know?
A bit ridiculous considering the B230 is not cheap!
