jkbms no good for poor after sales service

[cali-clim]

hi you are right if you have to change brand to have a better service after sale we will more buy jkbms !!! Me since the beginning he replies now anymore nothing more in addition he does not even put their scandaling site in the day !!!! may be the way of changing brand !!!!Frankly the only person who answers me is the Setlos engineers !!! Too bad that we do not incorporate an active balance of 3A on their PCB !!! but they answer their customers !!!

 

[SomethingAppropriate]

It truly is sad that they dont respond or have any customer service.

 

[HRTKD]

Well that sucks. I was hoping he would get all the bugs worked out before I power up mine in the next few days. @Steve_S has switched over the JK BMS and seems to be having good results.

Plan B for me is to get a 16s from Overkill Solar and skip the Inverter communication. My two 4s Overkill Solar BMS have been bullet proof for the past four years.

 

[Steve_S]

I switched from the former JKBMS Edition (non-inverter) to PB2A16S20P for my fleet of packs (7 when done in 2 weeks). They have been working fine for the most part only a few minor quirks but no show stoppers. It was all good up to Firmware 15.24 but when flashing to 15.27, it bricked #2 and it is now totally FUBAR. So I stopped updating the rest and now waiting on the replacement BMS.

Now my situation/install is not like many others. I do not have an AIO and my Samlex EVO Inverter/Charger will not interact with battery packs. Neither will my Midnite Solar Classic Solar Controllers, so I run both with standard settings for LFP like I always have been. With those settings which are BULK/Absorb to 3.460 & Floating at 3.450 and using the WizBangJr Smartshunt to transition to Float when EndAmps reaches 14A has been working the treat. By the time I transition to Float, all packs are leveled up and cells are pretty close (never more than 0.020 apart) but Active Balancing deals with that within 15 minutes of being in Float and then everything sits at or below 0.005 differential. Not bad considering my Oldest Pack is running with "Bulk Grade" 2018 V1 EVE LF-280's.

I cannot conceive of any reason why JK would make good hardware that can do most of everything we need & want yet drop the ball so badly on the software/firmware which they got to 92-95% and then just stopped. Their disconnection from those of us who helped them "as soon as they got what they wanted" is also very disturbing and makes no sense. They got help from some serious hard core techie's for FREE and they could not even say a Tanks for that...

 

[kommando]

I cannot conceive of any reason why JK would make good hardware that can do most of everything we need & want yet drop the ball so badly on the software/firmware which they got to 92-95% and then just stopped.

Seen the same in the 3d printer world, release a printer with excellent hardware, software full of bugs and a few firmware releases clears some of the bugs and then nothing. Shortly after you see a new printer is released which is where all the development effort went when the previous releases stopped and the cycle repeats. Tis the Chinese way.

 

[JJJJ]

My two 4s Overkill Solar BMS have been bullet proof for the past four years.

That is good to hear. On the other hand my experience has been different with my CATL 302 amp batteries. I currently have three batteries (going on four). One is powered by the older JK active balancer and two by the Overkill 8s BMS. If I charge or use power at a low rate the Overkills are OK. However if I hit them with higher demands they start to stray and struggle whereas the JK keeps things in check. I currently picked up some extra CATL cells because some of the cells look like they need replaced. Perhaps I got a bad batch in the first place? However the older JK is managing EV CATL teardown cells and doing well. However if a better product becomes available with excellent support I would certainly consider it.

 

[Steve_S]

Enough "Influencers" are FED UP with JK's current level of stupidity
JK Better realize the moment we start BASHING JK for being a Horrible Software Company with attrocious support THEY WILL FEEL PAIN !
I've had some Side Chats with a few and there is consensus that IF JK does not get it together (within 2 weeks or so) that a Common Front of ANGST & ANGER will be broadcast everywhere.

@Nami I VERY Strongly suggest that YOU & your friends at JK listen & party attention.
You have effectively sabotaged your company & product line and will kill it, if you continue to ignore people and not fix the firmware !
EFFECTIVE IMMEDIATELY I will no longer recommend or suggest the Inverter Model to ANYONE and will inform people to look elsewhere.

 

[JJJJ]

I recall Will talking about the volume of members and non members who visit this forum. It was huge. I heard a statistic once where a dissatisfied customer tells more people than a satisfied one. Market niche is a very hard thing to maintain. Countless products have come and gone over the years due to market changes or unhappy customers.

Nothing affects the bottom line faster than a market shift to another product. A responsive company will make haste to correct problems and communicate with this forum. Let's see...

 

[Brucey]

The whole jk inverter line was a beta in public experiment, looks like its still underway

 

[houseofancients]

The whole jk inverter line was a beta in public experiment, looks like its still underway

Been saying that for a while

 

[Steve_S]

The PEOPLE (Customers/Clients) MUST take a stand and call out JK to GET IT RIGHT or else we will scream blue blazes and end the fracas of stupidity with bad service & no updates fixes that are needed. ENOUGH is ENOUGH and unless folks say so, they'll keep doing Half Assed and we have to suffer it.

 

[AshleyL]

The PEOPLE (Customers/Clients) MUST take a stand and call out JK to GET IT RIGHT or else we will scream blue blazes and end the fracas of stupidity with bad service & no updates fixes that are needed. ENOUGH is ENOUGH and unless folks say so, they'll keep doing Half Assed and we have to suffer it.

True.....I mean they abandoned V14 hardware and its firmware development within 4 months, I have four v14 and three v15 ( one v15 as spare part just in case). Seriously? 4 months?

Current configuration :
Growatt SPF 6000 with 4 parallel battery packs = 2 v15 + 2 v14
SPF 5000 = 1 v14
SPF 3000 = 1 v14

What am I suppose to do with my SPF 5000 and 3000 that use V14 hardware? Sigh.....I don't want to dismantle the pack and change it to V15, too much work in replacing the BMS. I paid for the BMS communication feature but I can't use it because the feature is not working correctly.

 

[mondurr]

Yeah see this post is all I need to know that I should avoid JK BMS units, they're now 100% tainted in my mind. What do you guys recommend for a 16s 280Ah build? I was probably just going to grab that 300A unit they have at BatteryHookup for $130.

 

[houseofancients]

Yeah see this post is all I need to know that I should avoid JK BMS units, they're now 100% tainted in my mind. What do you guys recommend for a 16s 280Ah build? I was probably just going to grab that 300A unit they have at BatteryHookup for $130.

Seplos, pacebms or even diybms are all good alternatives, but depending on the quality of your cells may require a seperate active balancer ( like the needy 4a)

 

[wsaharem]

I've been working with the unknown person behind AliExpress JKBMS site for over 6 months. He/She finally said to return with a very strange address that no shipping company recognizes. I was told to contact jasonliu@jkbms.net, sent 3 emails asking for help, zero response. So, after 7 months of trying and proving that it's bad, I'm done. Moving on. Waiting for Overkill to get their Canada/US version completed. Support should be greater than 51% of the product! (when it's needed) Interesting note, my V14 BMS works fine and reports correct SOC. The V15 version is crap.. (at least for me)