New JK Inverter BMS Review + Test with Sunsynk Inverter

CAN communication with inverter, Current Limiter, Programmable relays, Active balancer... basically an All-In-One perfect BMS??
I also connect the JK Inverter BMS to a ‪@sunsynk‬ Sunsunk Inverter using the CAN bus communication.
In this video we look at what you get int he box, discuss the specs and features, briefly look through the app and what information is displayed on the screen and take a closer look at a few BMS settings like:
Vol. Cell RCV(V) Requested Charge Voltage
RCV Time (H) Requested Charge Voltage Timer
Vol. Cell RFV (V) Requested Float Voltage
RFV Time (H) Requested Float Voltage Timer
SOC-100% Volt. (V) State of Charge 100% reset voltage
SOC-0% Volt. (V) State of Charge 0% reset voltage
Disable PCL Module (When this switch is on, it disables the built-in current limiter)
Charge and Discharge current limit settings
The JK BMS has built-in Bluetooth that connects to the JK BMS App, various Display screen options, Charge and Discharge control, built-in protections for current, temperature and voltage... this JK Inverter Battery Management System (BMS) seems to have it all.
⭐️⭐️⭐️ OTHER VIDEOS ⭐️⭐️⭐️
🧰 How to Downgrade firmware on JK Inverter BMS • How to Downgrade firmw...
🧰 Testing Limits of JK Inverter BMS • Testing limits of JK I...
🧰 Hot to connect JK BMS to SunSynk Inverter • Connect JK BMS to SunS...
🧰 How to Upgrade firmware on JK BMS • How to Update Firmware...
🧰 Review of the original JK BMS • New JK BMS and SCREEN ...
🧰 JK Screens compared • JK BMS Screen Comparis...
Andy from ‪@OffGridGarageAustralia‬ does a great job of explaining all the settings on this BMS... here is a link to his video • The new JK Inverter-BM...
If you want to read other reviews or buy one of the other style JK BMS's, here is an option 👉 amzn.to/3yy7lAH (make sure to select the correct model that you need)
I bought this BMS from lithium-cells.... in South Africa
My Other Socials 😁 👉 linktr.ee/gran...
=============================
💰💰💰 Support for my Channel 💰💰💰
=============================
If you wish to support the channel monetarily, please use the links below:
Use Super Thanks on any of my videos
Patreon - / grantburton
Pay Pal - paypal.me/gran...
Any support will be VERY much appreciated.
=============================
✅✅✅ 2024 GEAR ✅✅✅
📷 Camera - Sony A6400 amzn.to/2ErIC5s
🔭 Lens - Sony 18 - 105mm f/4 G OSS amzn.to/3hWwqri
🔭 Lens: Sigma 16mm f/1.4 amzn.to/2ZZeS7J
🔭 Lens: Sigma 30mm f/1.4 amzn.to/2HJcWd7
🎙 Mic: RODE NTG5 amzn.to/361R4nx
🎙 Microphone - RODE Wireless GO II amzn.to/2YZ9PX0
🎙 Microphone - RODE Video Mic Pro+ amzn.to/3jsk7o7
🎧 Audio Recorder: Zoom F6 amzn.to/2HeVGwb
💻 MacBook Pro 16 inch amzn.to/2GlCMTU
🎧 Headphones: BeyerDynamic DT770 Pro (80 Ohm) amzn.to/33kurc9
Soundtracks from Epidemic Sound (Referral link below)
www.epidemicso...
Please help support the channel by purchasing through my Amazon Affiliate links above. When you do, I earn a small commission which helps keep the channel going and you don't pay anything extra.
#bms #BurtonBuilds #offgrid ‪@EELBATTERY-Miya‬
Burton Builds
S07E02

[@hendersonsobers396]

Found this channel just now. Really good content- great job. I'm looking forward to further JK firmware updates to support other inverter brands like Luxpower. Also, I know this will more than likely require a hardware change but would be awesome if JK BMS' had wifi to allow the BMS to be monitored over the internet similar to Daly.

[@GrantBurton]

Thanks very much. I'm sure over time they will update and add support for other inverters... let's hope. I guess adding wifi monitoring is possible with a sort of 'wifi adapter' that plugs into the RS485 port, which pulls all the info and uploads to something like home assistant (or the JK app if its hardware made by JK). A couple weeks ago, I remember reading on one of the forums about somebody having programmed an ESP32, which plugs into the BMS RS485 port and draws the BMS info and streams it to Home Assistant... so i guess it could be indirectly monitored through Home Assistant.

[@rcinfla9017]

It is important to understand the RCV and RFV settings are just requests sent to inverter/charger to adjust the inverter/charger's charge parameters. The inverter/charger is still the master regulating actual charge rate. If inverter/charger does not understand the BMS requests due to inverter/charger not having the proper RS485 or CAN physical interface and matching comm protocol with the BMS, the requests will not be executed by the inverter/charger. The BMS does have a DC to DC converter (big toroid inductor visible) across the charge disable series pass MOSFET's. When charge MOSFET is disabled the DC to DC converter can activate allowing 0 to 10 amps charge into battery. The primary application of this is BMS intended for rack mounted battery packs that may get a battery installed or discharged where it is significantly lower state of charge. Other parallel batteries would push a lot of charge current to the low SoC battery. The DC to DC converter allows a controlled amount of charging current to the low SoC battery. This DC to DC converter can also be helpful near full charge state where too much cell imbalance would cause a full charging shutdown due to a cell overvoltage condition. BMS can fine tune the charge rate down to low level still allowing balancing to continue but preventing a cell overvoltage shutdown by reducing charge rate. There must be comm with inverter/charger to use this because inverter/charger without BMS comm will likely interpret charge current drop off as a fully charged battery and drop inverter/charger down to float mode charging voltage level. During this BMS buck converter charge rate reduction it tells inverter/charger to maintain an absorb voltage level charge voltage.

[@Mike-01234]

I set my inverter to lead acid and charge voltage to 58v and float to 54.4V works good for me I get to 3.65v without a problem every battery is balanced. I don't see a need to use comms treat the inverter as a power supply. Some reduce the absorption to 56.4V for longer battery life I like faster charging.

[@beebop9808]

You might try a different communications driver that has the correct data mapping. I know of three protocols that'll work between my EG4 and the JK. There may be others as well. Lux Power works great for mine.

[@reneroman1421]

Good video....My JK bms stopped balancing the cells for some reason, I removed the connectors from the cables to turn it off and on again and it came up with an error "Sample - wire Resistance Too Large"..Now all the resistance readings are at 0.000 I have checked all the wiring and it is fine, very strange that it is the 16 cells at the same time and everything happened when I disconnected the connectors and reconnected them....Any solution to this problem?...thanks

[@stevenfrazier8939]

I bought 4 Apexium DIY battery kits with the JK Inverter BMS PB2A16S20P. The first one I built had a bad BMS right out of the Box and it looks like Jkung is not going to replace it. 34 days have gone by without a commitment to replace it. This is not good after sales support.

[@padre-alex]

Hello. I also have a battery system on parallel jk bms 150a-2a. I encountered a problem with incorrect current display, I tried to calibrate the device for 20 amps, and in this case, when 20 amps are supplied, the display is correct, but if the current is changed to a smaller value, it shows a significantly lower current. For example, 1.5 amps instead of 2. Or 45 amps instead of 40. Have you had this problem? Is it possible to solve this by replacing the firmware or changing the settings?

[@iaandewet9778]

Have a Jk invertef Bms with eve 280 x 16 cell configuration. Alsi have 3 x Kodak FL5.1 batteries from an existing installation.. I have seen some videos where diffefent Bms are fixed at a small scale running in parallel. On the inverter side it is "user " settings. Have some-one tried something similar.?

[@ZenInnovations]

Hi Grant, Can you help me confirm a bit about the Dry contact relay settings? I need the BMS to activate the relay at certain SOC % And turn off the relay at certain SOC % Say I want to turn off the inverter Mains input as soon as Battery SOC reaches 70%. And then reconnect to mains as battery reaches 20% SOC. I mainly use solar for power saving. Thanks.

[@GrantBurton]

Hi, I think it may work. The dry contacts are Normally Open (NO). There are three settings for triggering these relays... Trigger, Trigger Value and Release Value. I tried the following -> Trigger set to 'Low SOC' and Trigger Value set to 21 and Trigger Release set to 69, the relay closes when the SOC reaches 20 (i.e. drops below the Trigger Value of 21) and the relay opens again when the SOC reaches 70 (i.e. rises above Release Value of 69). You'll likely have to use a contactor to reliably connect / disconnect mains input over a long period of time.

[@ZenInnovations]

@@GrantBurton wow thanks for confirming. I'll probably use the dry contact to trigger a 2nd, much beefier relay which can take the mains load comfortably. Then use it to switch mains. Though I wish they should have given low soc as well as high soc trigger to make it even more flexible. BTW one more thing! Can we manually override or switch these relays using the mobile app? Say if I need to activate mains for charging?

[@GrantBurton]

​@@ZenInnovations A workaround may be to use the Low SOC triggers to drive another relay with NC contacts... So when the Low SOC relay releases, the additional NC relay loses power and thus closes it's contacts acting like a High SOC trigger? and when the Low SOC relay triggers, the additional NC relay energises thus opening the additional NC relay contacts. Probably easier for JK to just add the feature in software though. I don't think the relays can be manually triggered (like with a software switch)... I'll need to have another look though.

[@PhilippeCJR]

I have a cable supplied with the BMS, it is a bundle of 4 or 5 green wires connect all to a lug, and also a red and black wire. Other end has a connector, I think it fits in the left over port on the BMS, maybe for heating pad? We dont use this green wire-bundle?

[@GrantBurton]

Can't say that I've seen the green wire bundle you are referring to, but if it connects into the heating port plug on the BMS at 02:52 (the plug next to where the balance leads plug into), it could be for the heating pad connections. Not sure why they would all be connected to a single lug though.

[@PhilippeCJR]

@@GrantBurton i have info from my supplier, its indeed for the heating pad. These green wires will be tied to ground, offering current to flow and active the heating if this is in use. We dont have to connect this port.

[@GrantBurton]

Thanks for the information 👍

[@PhilippeCJR]

@@GrantBurton i have my first of 3 packs now live. Its on a Deye 12kw hybrid. We select lithium-00 right? In the Deye. In JK we select canbus deye protocol? So far this seems to work here now with 1 pack. Fw 15.26.

[@GrantBurton]

Yes, On the Inverter select Lithium as battery type and Protocol should be 0. On the BMS, set CAN protocol to 001:Deye or 002:Pylon... both should work. I haven't used firmware 15.26 yet... Both my BMS's are on 15.27 at the moment. Also set BMS address to 0 (all 4 dip switches off) so that it is the master BMS. Make sure to check on the Li-BMS screen on the Inverter that the BMS is communicating with the Inverter and that all the limits that are set in the BMS are being reported correctly to the Inverter.

[@alanblyde8502]

Great vid mate, hi from downunder 🇦🇺🤙

[@GrantBurton]

Hi Alan, hello and thanks very much... have another two JK Inverter BMS related videos out already, and currently working on a fourth video, hoping to have it out over the weekend.

[@ΝώνταςΑθανασιάδης]

Hello . sorry for my bad English.i just received this model and victron multiplus,mppt and cerbo.is this bms only for DIY 48V box or can i work it with my cells without box? Thank you

[@GrantBurton]

Hi, JK Inverter BMS should be able to work with the Victron Inverters 👍 Andy from the Off-Grid Garage channel does a lot of testing with Victron inverters and the Jk Inverter BMS.

[@pr5991]

Hi Grant, I have Solis hybrid 5KW inverter, and I'm using it with 16 EVE 304 cells and the same (as you are showing) JK inverter BMS with an active balancer. I've been running this setup for the past five months. The JK BMS communicates the state of charge (SOC) to the inverter, but the SOC keeps drifting over time. Here's the issue: even when the BMS indicates a 100% SOC, the voltages drift slightly lower with each cycle. Over the weeks, the SOC gradually drifts, so while it shows 100%, each cell and the overall pack voltage are slightly lower than the previous cycle. If I adjust the battery capacity settings, the BMS resets to 70% SOC, and the inverter charges another 3 or 4 kWh. This SOC drift is frustrating because on cloudy days, my 16 kWh battery effectively only charges to 11 or 12 kWh. The remaining 4 kWh stays uncharged because the BMS incorrectly reports 100% SOC to the inverter. To fully charge the battery, I have to keep changing the capacity settings in the BMS back and forth. Is there a way to use this inverter without CAN communication or by setting it as a generic battery? If anyone else has the same issue or knows a solution, please comment and suggest how to fix this problem. Thanks!

[@GrantBurton]

Hi, are you allowing your battery to fully charge each day... as in reaching the RCV and then holding the RCV for 1 or 2 hours each day? I have heard of the SOC drifting over time when a battery bank is charged and discharged a few times, and isn't fully 'bulk' charged each time... kind of a SOC calculation error that compounds over time... or at least until the next full charge where SOC resets to 100% again according to one of the cells reaching the 100% SOC reset voltage. Does your inverter stop charging your battery when '100% SOC' is reached (whatever voltage that may end up being) or does it charge according to the RCV the BMS sends to the inverter, and only stop charging (or reduce to 'float' charge voltage) when the RCV is reached and the RCV Time is reached / exceeded? Because if it's charging according to RCV, I don't see how the voltage should drift lower with each charge cycle because the charge should be charging the cells up to your specified voltage each time, and not stop charging until it reaches that voltage.... Unless there is something I'm not understanding (I'm no expert though... haha). What is your 100% SOC Voltage, RCV and RCV Time set to? Also what firmware version are you currently using? I think it is better to continue using it with communication as that will give you the most accurate SOC... it's accuracy (or inaccuracy) at the moment will probably still be more accurate than running in 'voltage' mode without communication.

[@Goodkiwibloke]

Is there a list of hybrid inverters that are compatible with this bms? I couldnt find a list anywhere. I have a SolaX LV Hybrid inverter. I know from experience the inverter works with LG Chem communication protocol (but i dont know if it does or doesnt work with any other communication protocols) Thanks

[@GrantBurton]

Hi, theoretically it should work with any inverter that works with pylontech batteries, because the Pylon CAN communication protocol can be selected in the BMS (although this isn't always trouble free). In my community section, I've posted some pictures of the CAN and UART communication protocols that can be selected - Screenshots from a BMS running firmware V15.30. here is a link kzbin.infoUgkxh9xTovVUAExO16Wnj6j-1XRHE6q9lSNC The only ones I've tested are the DEYE and PYLON protocols, so not sure how well any of the others might work.

[@Goodkiwibloke]

@@GrantBurton thanks Grant. I don't know if my inverter supports pylontech can protocols

[@everts50]

Do u know if the jk bms will work with a luxpower inverter to read correctly with the communication

[@GrantBurton]

Hi, I'm not 100% sure if it will work because I only have a SunSynk inverter to test with, but if the Lux Power inverter has CAN communication and is able to work with the Pylon CAN protocol, and if you set the BMS to the Pylon CAN protocol... I think it might work??? To be 100% sure it will work, somebody would need to test it.

[@gaborfarkas3168]

Thanks for the vid. My Daly BMS failed, and i will buy an JK now. But in our place using smartphones are prohibited. Can i use this JK BMS out of the box only with the PC software? I need the answer urgently. i'm asked JK too, but no answer since 3 days.

[@GrantBurton]

Hi, I have never tried to setup and configure an unused and new JK Inverter BMS only using the PC monitoring software, but I have tried changing settings using the PC Monitoring software (version 2.9) on a BMS running Firmware V15.30 and most settings can be changed successfully... I noticed RCV Time and RFV Time sometimes worked and other times didn't (the software returns an error when trying to change the setting). Also, I was unable to select anything in any of the dropdown menu's for setting stuff like UART or CAN protocol settings, LCD buzzer settings or the DRY contact settings.

[@gaborfarkas3168]

@@GrantBurton Thanks, I'm ordered now Seplos V3 BMS, it works sure with PC by default. Let see when arrived.

[@GrantBurton]

👍 Let us know how that works out. I think I've heard before that the SEPLOS V2 BMS is more popular than the V3... I think it had something to do with the state of charge accuracy, or something along those lines... I can't quite remember now.

[@gaborfarkas3168]

@@GrantBurton The Seplos V3 BMS arrived. Installed into the 16S 600Ah battery. Turned on with its On/Off button and works well immediately. I'm used the Seplos RS485 adapter, bought together. The PC software connected without problem. To modify settings it needs a password=88888888. The BMS default settings are for LiFePo4 16S battery, and looks all ok. The only things to set up was the battery pack capacity. I heard earlier that the SOC setting/measuring is crazy, but it was very good and simple. In the PC SW there is a setting for remaining capacity. After the value entered, it showing the correct SOC. Now it works since an week, and everythings are good and accurate. Until now it was much better than the Daly 16S200A. I have an Daly 1A active equalizer, this works parallel wired with the Seplos BMS, OK.

[@georgem3264]

Will it work on the Lux power inverter

[@GrantBurton]

Hi George, I'm not 100% sure if it will work because I only have a SunSynk inverter to test with, but if the Lux Power inverter has CAN communication and is able to work with the Pylon CAN protocol, and if you set the BMS to the Pylon CAN protocol... I think it might work??? To be 100% sure it will work, somebody would need to test it.

[@keshabit]

If you switched off this BMS for, let's say, a week and start again, the settings will be reset. I'm not sure when the manufacturer will fix it?

[@GrantBurton]

Hi, I think this was an issue with the old firmware... this has since been fixed with later versions of the firmware. I know it was fixed in V15.11 and later. Did you manage to update your firmware?

[@mahdeyousif5399]

Greeting How to value recommend for jk bms setting For battery litheum 51.2vdc (16 cells 307 Ah

[@GrantBurton]

Hi, the values you set depends on the specifications of the battery cells you are using, so best is to check the data sheet for your cells and make sure none of those limits are exceeded. Credit to Andy from Off Grid Garage... I started using the settings he talks about in his videos, but I set my own charge and discharge current limits appropriate for my cells, and over time make small changes to suit my exact setup... but I generally lean towards safe / conservative settings and not settings that run right up against the limits.

[@ДенисШапшников]

hello, is it possible to use this new-style BMS on electric bicycles

[@GrantBurton]

I’m not 100% sure what all the requirements for a BMS on an electric bicycle would be but I guess it would work… it basically has all the same functions as the other ‘non inverter’ BMS with a couple of additional features… but I don’t think these extra functions would need to be used. The downside is that the Inverter BMS is much larger and I would think that space on an electric bicycle is at a premium. Are you busy building an electric bike?

[@ДенисШапшников]

I ordered on Aliexpress a few days ago, it is already on the way, after I realized that it is designed for solar panels and performs a lot of functions, now I will have to study the bms before connecting

[@ДенисШапшников]

Anyway, thanks for responding.

[@GrantBurton]

@@ДенисШапшников It's a pleasure... let us know how your project turns out.

[@ДенисШапшников]

I will definitely tell you, but it won't be soon.

[@ticknguyen]

Please make a tutorial video on how to connect and communicate between two JK BMS through the RS485 port.

[@GrantBurton]

Hi, you should just be able to plug an ethernet cable into the RS485 parallel port on each of the BMS's and it works. This video might also be of interest about how to connect up the communication kzbin.info/www/bejne/n4nYd3xuYtF5h5o

[@BobboNaught-YT]

Do you need to connect this to an inverter to use it? Or can you use it like any other BMS too, with a dumb charger and inverter?

[@GrantBurton]

Hi, it can be used like any other standalone BMS, it doesn't need the communication to be connected to the BMNS for it to work, however you'll need to set the 'dumb' charger so you don't overcharge your battery/cells and set the Inverter to stop discharging the battery before it gets to low.

[@BobboNaught-YT]

@@GrantBurton thank you!!

[@offgridd]

Hi Grant, Good video, all info about this bms is very welcome 👍 Can you confirm the settings data now being stored in flash memory (IF present at the bms at all)? Andy from the offgrid garage posted a warning on this JK BMS systems resetting to li-ion settings after loosing all the data after being shut off for some days. this because the data was stored in RAM. The firmware update changed this in LTO being selected after a "reset" due to being swithed off for some days but nothing beats flash! Did you test two to five of them as two to five different but equal batteries in the Victron Cerbo? Soon, my ordered 40 extra cells will arrive and buying 3 extra 123smartbms BMS systems, each costing € 500 and more is, together with 3 relais or trip fuses, where the jk bms has all inside, kind a of dealbreaker for me. Keep up the good work!

[@stephanklasen2928]

On old firmware the BMS switched back to stock LTO settings when the input parameters made no sense. This was intended by JK. After many concerns they changed the firmware and give a direct warning if you type in stupid values. So you cannot store stupid settings anymore and therefore the BMS does not reset back to base settings.

[@georgem3264]

Awesome video ,will it communicate with lux power inverter

[@GrantBurton]

Hi George, I had a look in the CAN Protocol menu on the BMS and there is an option for 011 - LuxpowerTek Battery CAN protocol, although I'm not sure if it works as I've never tested it before. Generally speaking, if your Luxpower inverter will communicate with Pylontech batteries, then you should be able to select the Pylon CAN protocol in the BMS and that would likely work. If you check my community page on the channel, I've posted some pictures of the list of communication protocols.

[@georgem3264]

Thanks

[@chichox8729]

cost this bms ?

[@GrantBurton]

Maybe you missed it but I mention this in the video at 0:30 seconds

[@liberumsrb]

6th led is for connection between BMSs

[@GrantBurton]

Thanks for the info 👍

[@kennyrodg]

Well this is a bit annoying...I was advised to go with a Seplos BMS as the JK will not work with my Sunsynk ECCO Inverter....I'd have much rather gone JK as well....Bugger ! I'll get the JK now and see if i can return the Seplos. Thanks for the vid.

[@GrantBurton]

Hi, I wonder if the @sunsynk ECCO inverters use different communication compared to the 'normal' SunSynk inverters. I've only has the JK Inverter BMS connected and communicating with our SunSynk inverter for a couple days now... so far, everything seems to be working but its still early days I guess. I am busy working on another video on how to connect the JK Inverter BMS to the SunSynk Inverter using CAN Communication, and showing the information it displays and testing how the Charge and Discharge Current limits and Charge Voltage Limits interact with the Inverter... should be out in another week or two (hopefully).

[@kennyrodg]

@@GrantBurton Hi Grant... Thanks for the reply, a video on how to connect the JK using would be extremely helpful.....I'll look forward to it...Subbed.

[@GrantBurton]

@@kennyrodg Guess I'll have to get stuck in then... haha. Thanks for the sub.

[@kennyrodg]

@@GrantBurton Yep, there's nothing else for it mate lol....Deep dive imminent !!!! On a serious note though, It'll help a lot of users as there's not much out there when it comes to diy batteries and Sunsynk playing nice together...it'll be much appreciated.

[@Mike-01234]

@@kennyrodg Why do you need coms does that inverter have a lead acid setting? If your battery is 48V 16S set to absorption to 58V and float to 54.4V no issues. Let the BMS do the job of protecting the batteries and balancing treat the inverter as a power supply.

[@panospapadimitriou3498]

it is a nice piece but never forget to do the correct updates... did not updated mine yet

[@GrantBurton]

I was running firmware version 15.11 (on hardware version 15 or the JK Inverter BMS) but noticed SOC wasn't aggregating correctly with 2 batteries in parallel, but everything else was working well. I've upgraded to 15.17 and set 002 - PYLON-Low-voltage-V1.2 as the CAN protocol to communicate with SunSynk Inverter and everything so far seems to be working. I haven't run anything before firmware version 15.11 but I've heard of a few people reporting problems with earlier firmware versions... so maybe it's a good idea to update to at least 15.11? (or the equivalent firmware version if you have Hardware version 14 of the BMS)

[@panospapadimitriou3498]

@@GrantBurton i m experementing with the late version of the older b series with balancer right now.. i hope the inverter one locks the cold parameters better !!! long term problems.... it doesnt accept 123456 code unless i force it again without erase the numbers.. .... hope the new bms doesnt have that anoying bug .. i wont update my old one for those 2 tiny problems but wishes it doesnt show more bugs

[@GrantBurton]

@@panospapadimitriou3498 I think there were problems with the old firmware on the Inverter BMS, but those bugs have now been fixed... at least from 15.11 onwards that I know of. The password on the new BMS doesn't seem to be giving those problems on hardware version 15, but I do remember hearing some people were experiencing password problems with the old style JK BMS. I used two of those older ones for over a year and didn't experience any problems luckily.

[@laurentsosson1739]

Hello and congratulations again for your great video I had a question: can the JK-PB2A16S20P communicate easily with a victron multiplus II 5000VA? what equipment do you need special cable in addition? I'm trying to find out about the bms because as I have a large 24 volt 1300AH battery pack I would like it to work perfectly before investing in the BMS and the victron multiplus II! laurent

[@GrantBurton]

Hi Laurent, thanks very much. I've never tested it with a Victron system (can't afford Victron unfortunately), but Andy from @OffGridGarageAustralia has done extensive testing with the JK BMS connected to his Victron system (48v system). I think you need a Cerbo GX to get the communication working between the JK BMS and the Victron System. You'll also need a VE.Can to CAN-bus BMS cable. I think you can also make this cable up yourself if you have the correct tools... Andy explains this pretty well in his videos... you'll just have to scroll through his video list and look for the JK related videos because he has a lot of useful and informative videos.

[@laurentsosson1739]

hello and thanks again for your quick and concrete answer! I'll see with Andy he's very nice! for the victron I'm currently looking to find a way to switch to self-consumption not sure I'll switch to victron because it's very expensive! but maybe there's an equivalent in a reliable inverter? thanks again laurent

[@LordOneHoop]

Yes it will with a cerbo and a proper communication cable. I have the same JK and Multiplus and it works like a charm. Good Luck.

[@georgem3264]

Good video thanks

[@GrantBurton]

You're welcome

[@ntblb89]

Andy is the best

[@GrantBurton]

Yeah, Andy has some really good information and a great channel 👍

[@Greg-bx4id]

good vid

[@GrantBurton]

Hi Greg, thanks very much.

[@mflo1970]

Lo tengo pero no comunicado pero de momento funciona fenomenal

[@GrantBurton]

Thanks for your comment. I also used the previous style (non-inverter JK BMS) without communication for over a year and it also worked great. What inverter are you using?

[@mflo1970]

​@@GrantBurtonestoy usando un multiplus 48v 5000w

[@GrantBurton]

@@mflo1970 Victron make great quality products. Have you checked that the CAN High and CAN Low wires are going to the correct pins on whatever is handling your communication (probably a Cerbo GX?). I think on the Victron systems, CAN high is on Pin 7 and CAN low is pin 8 but on the JK BMS, CAN high is Pin 4 and CAN low is Pin 5 so a standard ethernet cable won't work. You may have to make up your own cable.

[@mondotv4216]

@@GrantBurtonYou can also buy one off Victron. Victron can work with the Pylon protocol. Not sure if JK has Victron specific protocol. BTW loved the video. You sound like you're a professional presenter?

[@GrantBurton]

@@mondotv4216 Hi, there is a Victron CAN protocol that can be selected in the JK BMS app... I think it is 004 - Victron_CANbus_BMS_protocol_20170717. Thanks very much for your comment. I'm no professional presenter, just an average guy... but thank you.

[@PhilippeCJR]

15.32 is out

[@GrantBurton]

Hi, thanks for the info... I think it's only available for the 200A version at the moment? My BMS's are 150A versions so i'll have to wait. I believe Andy said there should be a version 15.33 out soon.

[@PhilippeCJR]

@@GrantBurton I hope all is still working fine, with 3 BMS in parallel, and with Deye. And with the SOC fixer solution :)

[@FaisalabadRoad]

Model number

[@GrantBurton]

Of what?

[@FaisalabadRoad]

New jk bms

[@GrantBurton]

Not sure if you missed it in the video? … but at 02:00 I say the model number of the BMS being reviewed (if you have the resolution set high enough and pause the video there, you’ll also be able to zoom into the product label on the BMS, which shows the model number).