Since the company Redflow recently dissolved after 14 years, owners really need a forum of ZCell owners to facilitate repairs, news regarding the purchase of Redflow IP and potential development of new zinc-bromine flow battery manufacturers, and so on.
Maybe there already is one - I shut down my Facebook account some years ago, and maybe there is such a group there. Is there?
Or are there any others?
Cheers
Using the perplexity AI engine, I found this Facebook group: “Redflow Battery Users Group” (500415625244938).
Hm. It’s not enough to push me to sign up to Facebook again.
It also suggested https://secondlifestorage.com/, so I’ll give that a try,
I’m in that Facebook group, it won’t give you any help.
You can keep up to date with the liquidation here:
https://aurestructuring.deloitte-halo.com/service/website/Redflow?Pg=4
If you’ve got ZBM3’s, I wouldn’t be hopeful they will last. My system ran 3, and I had 6 fail within 12 months (first batch, and then those replaced under warranty)
Thanks. I followed the whole process of the Redflow collapse.
I have two ZBM2.5s and one ZBM3. The ZBM3 is the only one that’s currently working, and it is working perfectly so far.
Do you have any ideas how to log in to the ZCell BMS? I used to log in using the default username and password, but the password had been changed (I suppose by Redflow technical support) when my ZBM3 was installed (to replace a failed ZBM2.5 under warranty) in June 2024. The thing is, the Service Manager told me he didn’t know what it was/is.
If you know the address to access but not the password I’m not sure how you can access it.
The Redflow BMS is a Raspberry Pi computer with some custom hardware to allow communication with the battery modules. If you’re good with Linux, you can pull out the SD card and reset the root password by editing the appropriate file directly. Once you’re in, you should be able to find the web server and figure out how to reset that password.
Unfortunately, I sold my BMS to a Redflow installer who used it for another customer, so I can’t provide more information than that. If you aren’t comfortable with Linux, I’d recommend you leave it be, or finding a friend to help you.
Good luck.
Thanks.
I’m OK with Linux (currently on Tails OS). Not so good with my crossed eyes and nerve=damaged hands, trying to find and fish out an SD card. I’ll give it a go, though. 
Thanks
I’ve had another look at the BMS, and here’s my next question(s):
Do you know where the SD card is located?
Do I need to pull this module out of the enclosure?
The SD card will be inserted into a socket on the main board. It might be accessible from the outside, but that depends on the case; it’s possible that you’ll need to pull the BMS out, disconnect cables, and crack the case open.
If you do a search for the Raspberry Pi board, there’ll be photos aplenty; I don’t know which specific revision Redflow used, so I can’t give you much guidance beyond the very general. I also don’t know the details of how it connects to the battery modules; I think it’s a standard serial cable, but I never looked at it that closely, so there’s a risk of damage when you disconnect the cables and/or extract it from the panel.
