JKBMS Inverter Edition Problems/Issues | No Support / Help to fix major issues. - DO NOT BUY ! Warning (as of Oct.12.2024)

[yur43]

And I like the idea of reducing the number of threshold settings. I also consider the RCV timer unnecessary. There is a recommended cell saturation voltage and a balancing result as the difference between the highest and lowest voltage. When balancing is done, you need to stop charging. How the built-in algorithm will decide battery maintenance, the user should not worry.
Most owners of factory batteries consider their purchases successful and are satisfied with them. They don't need dozens of settings.

 

[Ron-ski]

Think limiting protocols would piss off another population of people. Using a 6000xp, Pylontech doesn’t provide full battery information like LuxPower protocol provides to the inverter which, I want. Everyone will have their own use case.

If reducing the protocols does free up space, perhaps two firmware versions with different protocols in each, although there own downsides to that of course.

 

[greatguy]

Do some people use these 16 wires/cells resistance override ? it could free up space for better needed values ?

 

[yur43]

Do some people use these 16 wires/cells resistance override ? it could free up space for better needed values ?

control of the battery cells will not be reliable without control of the wires for control

 

[Tinbum]

Think limiting protocols would piss off another population of people. Using a 6000xp, Pylontech doesn’t provide full battery information like LuxPower protocol provides to the inverter which, I want. Everyone will have their own use case.

It's surprising the information that the BMS will give. Pylontech give very little over CAN. I've just been doing some 'stuff' with some Growatt batteries and it's amazing the amount of information available for the inverter over CAN.

 

[AshleyL]

It's surprising the information that the BMS will give. Pylontech give very little over CAN. I've just been doing some 'stuff' with some Growatt batteries and it's amazing the amount of information available for the inverter over CAN.

Information such as?

 

[Tinbum]

Information such as?

Have a look at the Pylontech CAN protocol and the Growatt (rev 5) CAN protocol.

 

[Nami]

I'm pretty sure it's in part a hardware issue. The current measurement accuracy isn't what it should be over the entire range from 200A down to 0A to do state of charge calculations.

The use of high-precision splitters can solve the measurement of current,

 

[JJJJ]

The use of high-precision splitters can solve the measurement of current,

How would we include this in the build?

 

[JJJJ]

@Nami. Will you please let us know when the updated software is available?

Thank you

 

[greatguy]

do we have to wait for another ogg video before update become publicly available ? :D

 

[Bill_A (aka Scat)]

After the problem is solved, we will reply to the email uniformly,
Thank you for your patience.
Answering emails without resolving issues does not bring effective results

In this situation it would be great after receiving these emails a response of, We received your email(s) and are working to resolve the issues, we will repond on each issue as it is fixed. We will be in touch on each issue.

 

[yur43]

About the accuracy of SOC measurement.
My 5 kWh battery works as a backup. The charge is constantly 50%.
Once every 5 days the battery is charged and balanced.
The results of today's charging are on the picture. Instead of 2.5 kWh, 5 kWh went into the battery.
BMS - JK - PB.

 

[Shazhenla]

A familiar installer has encountered a problem. His RS485 PylonTech protocol does not work.
The inverter does not see the BMS via the CAN bus. The inverters are Chinese.
He thinks the problem is in the inability to select the RS485 and CAN speed. Can you pass this on to JK?

Problematic Hipontech RS485 inverter.

 

[ragnakore]

A familiar installer has encountered a problem. His RS485 PylonTech protocol does not work.
The inverter does not see the BMS via the CAN bus. The inverters are Chinese.
He thinks the problem is in the inability to select the RS485 and CAN speed. Can you pass this on to JK?

Problematic Hipontech RS485 inverter.

Interesting you mentioned this; I could not get JK's RS485 to work with two (2) Deye inverters too.
CAN works though.

 

[prosier]

Interesting you mentioned this; I could not get JK's RS485 to work with two (2) Deye inverters too.
CAN works though.

With 15.32 fw?
And how is SOX fixer doing? I hear it has issues with 15.32

 

[Steve_S]

Given what Andy posted on the last page (post 569), re small memory, limited hardware capabilities does 3 things.
1) Tells us there is physical limits as to what they can do & implement.
2) Also tells us they will limit what they will do using this explanation ! ;-)
3) They will "fix the minimum" they can to appease & pacify.

- They will have to issue new upgraded hardware that will actually do as advertised on the label. V16 HW ???
- You cannot expect any direct support, that JK will use their "front enders" be it Video personalities or Vendors...

anyone catch the pseudo-apologism ? Ughhh
that's a hell-u-va tactic to get someone to forward...

Bottom Line: Keep expectations LOW as well as hopes for improvement without a new pile of Hardware.
"Maybe" they get it right on the next kick of the cat....
LESSON THAT SHOULD HAVE BEEN APPLIED ! like buying cars.
Never buy the First Production Run / Version of any hardware or software lest you suffer the bugs, quirks & failures by being a "Retail Beta Tester".

BOTTOM LINE : AVOID JK until they get their act together.
PS: They have lied to the users MORE than 3X ! Lie to me once, shame on you, lie to me twice & same on me, lie to me thrice & your out ! (polite mode)

 

[AshleyL]

With 15.32 fw?
And how is SOX fixer doing? I hear it has issues with 15.32

The problem lies with the firmware, there is no workaround unless JK fixes it on their end.
15.30 - 15.32 has issue with parallel communication.

 

[JJJJ]

Given what Andy posted on the last page

Good point.

@Nami has been quiet for a while. No answers to questions regarding updates or plans.

AVOID JK until they get their act together.

Agreed.

Honda as a car manufacturer typically has a good reputation. However they have made some poor decisions regarding component decisions. To "save face" they have extended warranties on these components. I suggest that a warranty or dramatic discount on the next hardware update will be needed IF JK hopes to stay in the market. There are other manufacturers such as Midnite who are offering properly working BMS units in their battery systems. @SpongeboB Sinewave is there a chance Midnite might be offering the BMS by itself? If so that would make for a very interesting thread in itself.

 

[JJJJ]

15.30 - 15.32 has issue with parallel communication

Perhaps 15.24 is still the way to go for now? If so is it still available? Just asking

 

[Steve_S]

Good point.

@Nami has been quiet for a while. No answers to questions regarding updates or plans.


Agreed.

Honda as a car manufacturer typically has a good reputation. However they have made some poor decisions regarding component decisions. To "save face" they have extended warranties on these components. I suggest that a warranty or dramatic discount on the next hardware update will be needed IF JK hopes to stay in the market. There are other manufacturers such as Midnite who are offering properly working BMS units in their battery systems. @SpongeboB Sinewave is there a chance Midnite might be offering the BMS by itself? If so that would make for a very interesting thread in itself.

That is not Midnite Solar's bailiwick so don't expect it. Now if whoever they contracted to make them would become public knowledge and available to the public, that may be the best avenue. I think it is extremely unlikely that Midnite will disclose such information though, unless someone actually takes apart one of the Battery Packs and looks closely at the BMS and posts photos, we won't know. Current video's do not show enough info or detail.

 

[JJJJ]

That is not Midnite Solar's bailiwick so don't expect it.

Excellent point! And trying to be careful not to get the train off the tracks.

What I DO find encouraging is that there seem to be other companies who recognize a market need and are starting to build products to meet that need.

 

[rhino]

That is not Midnite Solar's bailiwick so don't expect it. Now if whoever they contracted to make them would become public knowledge and available to the public, that may be the best avenue. I think it is extremely unlikely that Midnite will disclose such information though, unless someone actually takes apart one of the Battery Packs and looks closely at the BMS and posts photos, we won't know. Current video's do not show enough info or detail.

Plus all these pre-built battery BMSs are extremely limited. They aren't designed to change any of the settings by the end-user.

 

[prosier]

Perhaps 15.24 is still the way to go for now? If so is it still available? Just asking

Yes but in 15.30 and 15.32 a lot of other things seems solved so...

 

[greatguy]

Perhaps 15.24 is still the way to go for now? If so is it still available? Just asking

yeah i revert from 15.30 to 15.24. 15.26 was fine too but i cant find it anywhere to download.