Depends on your inverter, my SMA has no issues with the 'Fake' 100%, it just carries on charging so an SMA to JK JB BMS is not a problem. For the Chinese based Inverters using Pylontech canbus there is an issue, whether its JK's issue or the Chinese inverter issue is unknown but likely neither will bother fixing the issue.
Anybody tried new JK BMS with inverter communication support?
- Thread starter wepower
- Start date
I ordered two JK inverter BMS to test out with my EG46000xp (lux). Fortunately or unfortunately they were destroyed during shipping so still waiting for reimbursement and I have not reordered. I’m debating on which one to get for my custom packs. After everything I’m seeing, Seplosv3 may be my best option.
Speaking of which, I ordered two JK inverter BMS and received two broken power switch connectors. Hanzkor replaced the two power switches for me at USD0.50.
Seem like the damage on the small rectangle connectors of power switches are similar which might indicates manufacturing issue?
Not sure if a systemic issue, mine were actually broken, could see PCB through box and packaging and refused delivery.
What inverter are you going to use the JKs with?
I see, that was serious damage indeed.
.......I was planning to use all five JK Inverter BMS with Growatt SPF 3000 ES, SPF 5000 ES and SPF 6000 ES in closed loop communication........
Probably will never use the communication since it doesn't work "correctly" unless if JK can implement the 99% during RCV Time duration (controlled float charge).
1 for SPF3000ES in single configuration
1 for SPF5000ES in single configuration
3 for SPF6000ES in 3 parallel pack configuration
Steve_S
Offgrid Cabineer, N.E. Ontario, Canada
Sadly it appears that NO ONE from the JK Gang is interacting with anyone at this time... AGAIN (case of Deja-Vu here).
There seems to be several "Small Issues" which really ought to be simple enough to address but are not being dealt with.
Even things as simple as a Logic Switch that says if using an 8S (8 cell config) to disable Temp sensors 3 & 4 as those sense harnesses are not used. Because it cannot do that you get a permanent error about the 2 missing sensors.
The protocol stacks all seem to be 95% right but none are 100% right ? WTH is that about ?
On the Support Pages (Software downloads) this is at the bottom. To what end ? They do not ever respond.
EVEN WORSE : They are Messing with the APP Again and it's reverted to being extra futsy about Android Versions and selectively not being installable on certain phone brands (Like Motorolla for example).
Now have 6 Units with the 200A Version updated to 15:17
There seems to be several "Small Issues" which really ought to be simple enough to address but are not being dealt with.
Even things as simple as a Logic Switch that says if using an 8S (8 cell config) to disable Temp sensors 3 & 4 as those sense harnesses are not used. Because it cannot do that you get a permanent error about the 2 missing sensors.
The protocol stacks all seem to be 95% right but none are 100% right ? WTH is that about ?
On the Support Pages (Software downloads) this is at the bottom. To what end ? They do not ever respond.
EVEN WORSE : They are Messing with the APP Again and it's reverted to being extra futsy about Android Versions and selectively not being installable on certain phone brands (Like Motorolla for example).
Now have 6 Units with the 200A Version updated to 15:17
I emailed all those 6 addresses every month since Feb 2024 with slightly reworded request/issue report on the controlled charge mode for Voltronic OEM inverter.
Got nothing.
Then we even have someone here with JKBMS firmware 15.19 while the official site only have 15.17.........No wonder China can never be world tech support.
Even on Growatt inverter issue, I had to contact their European branches just to get proper support (it works).
Steve_S
Offgrid Cabineer, N.E. Ontario, Canada
I used many different BMS' over the years and suffered various things in general. The older "simple" JK's with Active Balancing really made a difference and worked better than the rest. After running with those for a couple of years I decided that as I am finalizing my bank to it's final form that I'd switch up to these Inverter Editions. Even though I use Midnite SCC's & Samlex EVO Inverter I still want to access the BMS' for all the packs states. OI also put the JK People directly in touch with the Dev Group @ Samlex and made the appropriate introductions - but nothing yet.
I find the product to be pretty good, even with it's quirks. I won't be editing or writing any more manuals or docs "for them" but may toss tidbits in here as I come across them.
Nami did interact with some of us here at one point but I believe that She/He Whoever managed to piss pretty much all of us off.
I find the product to be pretty good, even with it's quirks. I won't be editing or writing any more manuals or docs "for them" but may toss tidbits in here as I come across them.
Nami did interact with some of us here at one point but I believe that She/He Whoever managed to piss pretty much all of us off.
ShirBlackspots
New Member
JK Inverter BMS
Brucey
Solar Wizard
Have they figured out the final configuration/firmware bugs/hardware revisions? I still think the old non-inverter model is the more proven choice (200A with 2A active balancing).
Would not say that’s accurate since most inverters just stop charging at 100% vs float/etc. Seems it can’t be fixed.
Hi,
at this website http://www.jkbms.net/download_pc is a new FW 15.23 for the Inverter BMS.
Dose anyone have a change log?
Regards
at this website http://www.jkbms.net/download_pc is a new FW 15.23 for the Inverter BMS.
Dose anyone have a change log?
Regards
Steve_S
Offgrid Cabineer, N.E. Ontario, Canada
It does appear that no one there has a concept of WHAT a change log is nor how to be informative.
They also changed the file naming, just to keep it interesting I guess.
JUST UPDATED 1 PACK to New Version.
The PC App (screen below) no longer sets CAN protocols nor the UART & Dry Contact triggers. What Else ?
Version is ACTUALLY V 2.7.0.22 (the internal "about" doesn't show it... SLOPPY !
Android Phone APP (V4.17.0) seems to work fine.
Android App V 4.19.6 Current App not installable on my phone again. (Motorolla Motto-G) ERG !!!
UART Stack: ----------------------------------------------------------- CANbus Stack:
They also changed the file naming, just to keep it interesting I guess.
JUST UPDATED 1 PACK to New Version.
The PC App (screen below) no longer sets CAN protocols nor the UART & Dry Contact triggers. What Else ?
Version is ACTUALLY V 2.7.0.22 (the internal "about" doesn't show it... SLOPPY !
Android Phone APP (V4.17.0) seems to work fine.
Android App V 4.19.6 Current App not installable on my phone again. (Motorolla Motto-G) ERG !!!
UART Stack: ----------------------------------------------------------- CANbus Stack:
Last edited:
Brucey
Solar Wizard
So from what I understand initial shipments of jk inverter BMS were hardware version 14.x, and they've been abandoned in lieu of the newer 15.x hardware?
Considering v14 was shipped in December 2023.......that was a fast abandonment......
Well, at least I can use v15 as master board for my upcoming parallel packs with V14 as slave board.
I just hope JK will not mess up the inter-BMS communication between V15 and V14.
Not sure if I want to take a risk installing the latest V15 firmware yet. One never know what JK might have messed up.....
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