JK-BMS: all settings and menus explained. How to program and set parameters.

Рет қаралды 106,128

2 жыл бұрын

In this very detailed video, I explain all the settings and menu options of the JK-BMS. If you're new to the JK-BMS or just want to understand BMS settings in general, this is the video for you. I also give a lot of context and explanations about why I have chosen these settings and why they make sense.
If I forget anything or you want to add some more information, please leave your comments down below. Thank you.
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Пікірлер: 784

@nicksnicknet Жыл бұрын

I tend to catch up on your video's at night. My wife says your voice is very soothing, and she drifts off to sleep. She has no knowledge of anything battery related (not has learnt anything since hearing you) but is sleeping very well 😅

@calendarking55 2 жыл бұрын

THANK YOU! Just what I needed. A detailed, methodical, non-rushed explanation of the settings. Legend. 👍

@OffGridGarageAustralia 2 жыл бұрын

Thanks a lot, hence a 40min video. It takes that time 😁

@philipbasson5862 Жыл бұрын

Thanks Andy. I really appreciate all the time you put in making these videos. I learned allot from your videos so far. I want to echo what someone here said, "As always, you are meticulous and thorough with everything you produce in you videos."

@OffGridGarageAustralia Жыл бұрын

Thanks a lot, Philip. I appreciate your kind words and support. Thank you!

@FutureSystem738 2 жыл бұрын

Thanks Andy, awesome stuff. It’s always a good day when there’s another video from OGG!

@buzzymoto9809 2 жыл бұрын

An example of how good this BMS really is. I installed 32 EVE 280 cells with no top balancing, hoping the JK BMS with active balancing would do it. The cells varied from 3.1 to 3.4 VDC. Three days later, the difference is 7 MV. Great product Andy, thanks for the recommendation.

@OffGridGarageAustralia 2 жыл бұрын

Thanks for sharing. That's what I do as well, I don't bother putting all batteries in parallel any more, I just let the BMS handle it.

@Rfhdvcgf Жыл бұрын

@@OffGridGarageAustralia true true I got my batteries around 10pm I just parreled it till 10 am and connected it to the BMS and a day later it's in balance with .2mv diff

@BernhardJHess 11 ай бұрын

I made the same experience.

@christosxenopanagos2737 11 ай бұрын

I'm trying to find for 32 cells and I can't find it, please a link where you bought it I will be grateful thank you.

@jonasstahl9826 11 ай бұрын

@@christosxenopanagos2737Most likly 16s 2p configuration

@redmerbootsma9375 2 жыл бұрын

Installed mine today with a Victron mppt 75/15, 100ah lifepo4 and a 100w solar panel for camping. Perfect and thanks for the detailed reviews and setup guide.

@HarshanaSamararatne Жыл бұрын

Thank you for all the details explained. I am planning set my own DIY lifepo4 battery pack and was looking for a BMS brand that can trust. JK is a reputed brand in Sri Lanka as well. And you explaining all the features one by one was amazingly helpful. It might take few months for the batteries to ship but now I know where to start. As I read in comments Top balancing is no longer an essential task as the BMS does take care of it. So thanks for the great information. Take Care ❤

@outdoor-buddy Жыл бұрын

Thanks for this great explanation. Just finished my ESS this evening.

@Spaniard47 Жыл бұрын

Thanks for this video. I couldve guessed the functions of 80% of these parameters, but it's very valuable to know exactly what I have control over, as well as within what range they should be set to. I find it very interesting that the balance trigger voltage on mine was set to 3.0V by default. That's 10%!

@offgridwithpojectham 2 жыл бұрын

Loved the video. As always, you are meticulous and thorough with everything you produce in your videos. I've been a long time fan and look forward to every video! Would love for you to someday install a Batrium BMS system on one of your batteries. Please consider this at some point in the future. Take care and hope that someday soon you have the sunny hot Australia back so you can charge charge charge! Take care my friend.

@janmatusiak1380 Жыл бұрын

I used JK-bms for my e-bike battery build after watching this video. thank you . great job

@marcoarpago 2 жыл бұрын

Great video Andy, I have been waiting for it from long time. In just a month (August) finally I will install the first 304Ah batteries and JK, so I will copy your settings in mine. Thank you !

@arturkarwowski1163 2 жыл бұрын

Thank you Andy for a great movie and another great lesson.

@tonytober 3 ай бұрын

The video is pretty long but is very informative so was worth watching every minute of it. Thank you!

@gumpster6 2 жыл бұрын

Great walk-through of the JK BMS. Once again, you have done what nobody else has.

@OffGridGarageAustralia 2 жыл бұрын

Thank you. I will continue this series with all the other equipment I have.

@jws3925 2 жыл бұрын

Another great video. Completed my battery about 6 months ago and wanted a JK BMS but at that time they didn't have one for 4s. I went with the Overkill (JBD) and so far it is working well and the cells are staying well balanced so far. Someday I might need that increased balance amperage but, fortunately, right now everything is running smoothly. I am going to try the JK BMS on my next battery. Thanks for what you do.

@OffGridGarageAustralia 2 жыл бұрын

Thanks John, the JBD is certainly a good BMS and I would use them as well. The Overkill I have (rebranded JBD) works well without problems.

@carlossanz181 Жыл бұрын

@@OffGridGarageAustralia Hi Andy! Which one do you prefer for a 4S battery pack, the JBD or the JK BMS?? Congrats for all your videos and your channel. Amanzing work!

@kenlillia 2 жыл бұрын

Thanks for the lesson Andy, will help when my JK arrives. Cheers

@buzzymoto9809 2 жыл бұрын

Another S.P.A.T from me to Andy. If you have used this good man’s content and haven’t gone to his web site and bought him a beer, you should do so ASAP. I used his recommended suppliers for 32 EVE 280 cells and a couple of these awesome BMS units. This video was “icing on the cake” Thanks again Andy.

@OffGridGarageAustralia 2 жыл бұрын

Great advertising, thanks for the S.P.A.T. 🍺

@NoOne12 Жыл бұрын

As most people have already said I thank you greatly for all the time and energy you've devoted to these video's. I just picked up the jkbms to replace two daly's that I've started to run into balancing issues with. These video's saved me so much time determining which bms to use as a replacement and with installation/setup. I truly wish I could afford to send you a super thanks at this time but some day when I can spare a few bucks I'll send them over for you to buy another cold one!!!

@markdavidson6321 2 жыл бұрын

Helpful and thorough information, as always. Thanks Andy!

@OffGridGarageAustralia 2 жыл бұрын

My pleasure!

@keezergeezer 7 ай бұрын

Thank you Andy. I’ve successfully fitted a 4-8s JK BMS following the video that ended in magic smoke, I had to check ahead so I knew it wasn’t a fitting instruction issue 😂. Now I’m getting the settings tuned 👍

@korvjankorvjan300 2 жыл бұрын

Thank you for this and also the video about the charge controller settings! It would be really really interesting with a video about the settings for the Victron shunt as well.

@frankthies221 2 жыл бұрын

Andy, congratulations on exceeding 34,000 subs! I think word is getting out about your channel. Good news travels fast! All the best!

@OffGridGarageAustralia 2 жыл бұрын

Oh, yes, damn, I missed this again. Thanks a a lot!

@ZecxyPumpkin 2 жыл бұрын

I switched to the jk bms from the daly, best decision ever. It's the product a lot of us waited for: BMS, active balancer and a heating pad control in just 1 product.

@firpofutbol 2 жыл бұрын

I have the same product (with heating pad control) coming in the mail. Do you have any heating pad/element recommendations?

@OffGridGarageAustralia 2 жыл бұрын

I think it's the best integrated BMS on the market. The easy setup and active balancer makes it outstanding. My 4s-8s BMS has the heating option too but I don't have the connector to test it out. It's only 3A, I believe...

@russellribeiro1039 6 ай бұрын

I am been very much blessed and educated by your videos. Thanks a lot for your wonderfull work. Receive our warm gratitude. Russell from Rio de Janeiro Brazil

@PoornaAbeytunga Жыл бұрын

Thank you for the great explanation . Your videos helped me a lot to setup my own off-grid system !!

@OffGridGarageAustralia Жыл бұрын

Thanks for your feedback!

@edwardvanhazendonk 2 жыл бұрын

Thanks Andy, this is very informational. Good stuff.

@cbcb3360 Жыл бұрын

Brilliant video, could not find a manual and you explained everything

@wideawaketotruth5301 Жыл бұрын

Brilliant walkthrough settings! Thank you Andy!

@jorghog4481 Жыл бұрын

Hi Andy, many many thanks for the really detailed info about these settings.! will use them when setting up my JK 16S System roughly the next month. Best Regards, Jörg from nearby cologne, Germany

@aussieaustrian8704 Жыл бұрын

Thanks Andy I’m still catching up on all the videos. I think the German accent added with Aussie slang is great. Actually laughed out loud this morning from another video when you said “it sh1t itself”. Keep up the great work.

@alanblyde8502 Жыл бұрын

Well described Andy, I always found these batteries daunting but you have described this to a tee👌

@ilinik255 Жыл бұрын

Thank you. As an inexperienced user, I could not immediately figure out all the parameters. Now everything is clear. However, I had to learn English for this.

@plgsekip Жыл бұрын

Thanks Andy. I bought the JK BMS after watching your videos, actually. 😅.

@denim_7861 2 жыл бұрын

vielen Dank für die Videos, die für den deutschsprachigen Bürger sehr gut verständlich sind!

@deviantstudio 8 ай бұрын

what a beautiful garage, sir. it's literally a dream of every decent man. 👍

@manuelmuller6117 2 жыл бұрын

Hey Andy! Ich wollte nochmal DANKE für deinen Rat sagen. Mein System läuft jetzt seit knapp einem Monat und es schaut alles super aus. Viele Grüße aus dem Sauerland!

@OffGridGarageAustralia 2 жыл бұрын

Danke Dir! Sorry, konnte nicht mehr per email antworten, es sind einfach zu viele.

@joebalciunas6962 2 жыл бұрын

Thanks Andy! My JK BMS 4S arrived a few days ago. I was wondering how to program all the settings. This video was super helpful! Have a S.P.A.T. on me.

@OffGridGarageAustralia 2 жыл бұрын

Thanks a lot Joe, much appreciated! Enjoy the JK.

@drewsuf77 2 жыл бұрын

As always great content. I only run a 4s 280ah setup using Daly( for a higher amp draw,as there is nothing much else out there) but I find your videos very interesting and informative. Would love my own off grid setup but I rent and can't justify building something portable. Keep the content coming.

@LambySRI 2 жыл бұрын

Absolutely nothing wrong with daly. Good at what they do. Csnt fault mine after a year.

@onthelake9554 2 жыл бұрын

@@LambySRI If you look around you will find a few complaints . kzfaq.info/get/bejne/gMieedyGnJ-ylmQ.html

@pfunnell70 2 жыл бұрын

What's the max amp draw on that? I have a 4s JBD that is rated 200A with 0.5A balance, haven't tested it extensively yet but seems good so far.

@OffGridGarageAustralia 2 жыл бұрын

The Daly's are good for this exact purpose and can handle up to 500A continuously. As you said, nothing else out there (unless you go QUCC with a relay function). The balancing totally sucks though so an active balancer may be needed.

@egg399. Жыл бұрын

There is a 500A jkbms but it needs external relays. JK-B2A25S60P

@pragmaticcosmic2826 2 жыл бұрын

Oh I jumped straight into tech head and neglected to say...thanks Andy for your excellent work... Cheers 🍻

@OffGridGarageAustralia 2 жыл бұрын

Thank you!

@off-gridmountaineer4515 2 жыл бұрын

The way I took it on the Vendor ID Name is. JK is the name of the company. The B2A stand for balance at 2 amps. 24S Stands for 24 in series. And the 20P stands for 20 in parallel that's the way I always took their ID name as. Thank you love your work on KZfaq. I AM A BIG FAN!!!

@krg038 2 жыл бұрын

15p is 150a, 20p is 200a. Not sure what the P is for.

@OffGridGarageAustralia 2 жыл бұрын

Thanks, man. 20P for parallel... you can have as many in parallel as you want, I guess. One does not interfere with the other BMS's, does not know how many are in parallel.

@evil17 2 жыл бұрын

My guess is the ‘P’ is for Parallel and they are using 10ah cells as a reference point, just guessing.

@panospapadimitriou3498 4 ай бұрын

@@krg038 POWER maybe .. those chinese developers are unpredictable

@alinarghira5471 2 ай бұрын

Not parallel guys. It is from amps. 20P means 200Amp

@MrHolderfreund Жыл бұрын

Hi Andy, in my opinion the Con.Wire Res. ist the resistance of your cell wiring. The BMS is able to calculate the "real" voltage of the battery because there is a voltage drop that becomes more important on higher currents e.g. 50A and higher. The voltage drop may be some mV but it is important, because the polarity will change while charging or discharging. so it must be added or subtracted from the cell voltage! greetings from Germany!!

@bjorn_moren 9 ай бұрын

The cell wiring (bus bars) is in the order of 1 mOhm. It is probably even less than the internal resistance of the cell, which is around 0.25 mOhm. The Con Wire Res values on the screen look like around 150 mOhm, so they can't be the bus bars, they must be the balancing wires.

@BernhardJHess 11 ай бұрын

Excellent. Thank you. Saves me a lot of time reviewing data sheets. Greetings from Gemany.

@OffGridGarageAustralia 11 ай бұрын

Thanks, Bernhard.

@excillisbank2611 2 жыл бұрын

Formidable vidéo explicative ! merci ANDY pour cette experience de configuration du JK-BMS.👍

@gayanattygala1633 8 ай бұрын

Nice and informative video. Thank you very much. Connection wire resistance may be important when the balance happens. Balance current goes through those small wires and there will be a voltage drop when ~2 amps goes through them. And if we set up a correct resistance of them, then BMS can calulate the individual battery voltage by adding them to the messuring voltage of a cell.

@bjorn_moren 9 ай бұрын

Thanks Andy, great video. JK BMS coming in the mail in a month or two.

@DavideArzarello Жыл бұрын

Great video, it helps me a lot to tune my JK BMS

@OffGridGarageAustralia Жыл бұрын

Great it helps. Thanks.

@tehdreamer 5 ай бұрын

Thanks for your vids, I've ordered new JK BMS 300A from ali express for 80 pounds. I'll use it with my 620AH 12v bank I am going to build for my camper.

@dig1035 2 жыл бұрын

Forgot what I was gonna ask! Thumbs up and still subscribed!

@OffGridGarageAustralia 2 жыл бұрын

Ah, great thanks a million times 😆

@PlanetCypher_ 2 жыл бұрын

Excellent guide, thanx Andy 👍

@OffGridGarageAustralia 2 жыл бұрын

Thank you.

@uwefrommelt7329 Жыл бұрын

Hi, for me as a German your English is very clear and good to understand! Thanks for all your testing, it helps me very good to understand the Technics overall. Now I will look your Victron Smart Shunt Video ;-)

@OffGridGarageAustralia Жыл бұрын

Thanks, Uwe.

@krzysztoforlowski6010 Жыл бұрын

Your channel is a treasure. Can't stop watching the videos. I am not sure if it is the deep knowledge you provide, your accent or your moustache. Are you planning to do any video about JK setup for parallel cells? For instance 16 cells setup as 8 pairs in series for 24V battery bank? Will this setup work? Wonder of your expert opinion and test of course. Thanks.

@markwitkop7022 Жыл бұрын

Andy, you are a hoot. 🤣 I appreciate the info that you provide. Thanks.

@derekcfoley 5 ай бұрын

Hi Andy, Thanks for your very informative videos and reviews. I did a conversion from lead acid to 16 x EVE 304Ah cells in my G-Wiz EV using the JKBMS 20S - I did this about a year ago, and watched your videos to help me decide which kit to buy. Since winter time, I'm having issues with some of my cells, probably due to stress and low temperatures affecting performance. The "SOC" on the display is basically correct, but on my vehicle when I go below 40% soc, one of the cells starts to underperform, usually when the heater is on, I'm accellerating hard and going uphill... momentarily dropping below the cut-off voltage of 2.45 and the cut-off engages, stopping the car, a few seconds later, the voltage increases and it works again, I obviously turn off the heating and acellerate more gently. The other cells are obviously all ok, being over 3v. I was wondering if its possible to change the "SOC" so 0% is at the real level of 40% where my cell starts to play up. How could I do this? perhaps change the cell capacity value lower? I've ordered a replacement cell ... but I'm also mulling over adding another cell so its 17 in series to help.

@JR.M.S 2 жыл бұрын

That’s so true. I like the accent and the rumble off “fully discharged and fully charged, really good results and…hmm the “further to due”!. Makes me wake up in the morning and gets me sleeping at night. But I will say that for me personally the most important aspect is Andy’s educational performance. :)

@OffGridGarageAustralia 2 жыл бұрын

Thanks a lot, appreciate your feedback and kind words!

@geraldklotz6124 Жыл бұрын

Thank you - this is what I am looking for and very well present - cheers :-)

@briarbenchhomestead946 9 ай бұрын

Hi Andy. I've been watching your videos. Lots of info and learned how to assemble my own 280ah 16s lifepo4 battery. I'm having some issues with my JK smart bms. I bought an inexpensive dc charger from Amazon, but I didn't have much luck. So I assembled the battery and wired in the bms. I attached my Lithium battery charger to get a top balance. It won't charge past 3.34v/cell the AH rating sits at 198ah. The voltage is 53.56, which is 97% charged.

@stephenharrisson9442 2 жыл бұрын

Hi Andy, absolutely brilliant video and great timing for setting up my system. I wonder what settings you would suggest to not max out my batteries on either charge or discharge ? Also would I need to alter any of the charge parameters within the multiplus 2. All of the charging from my solar set up comes through the multiplus to the batteries. Many thanks Steve

@kristjanaiaste Жыл бұрын

Great videos! I am planning a 5x16s battery back for my house and I did not see any video about using the JKs with multiple packs in parallel. Do the BMSs have a master-slave functionality or must each be configured separately? And also.. how well does the JK speak to the inverter (I have a 3p Deye 12k) and even more so, when you have multiple JKs in your big battery storage unit? I also see, SEPLOS/Maison offer they battery DIY boxes without a BMS - would JK be a good subsitute and would it "fit"?

@jackiedines5229 Жыл бұрын

Amazing video Andy, finally I have got my battery ready to calibrate the BMS, all due to your instructions. I got a JK BMS for 24v which was the only one at the time, I did want 12v, but I have used the buck converter to get the 24v. Did the 7v short trick (thank you) to get it started. Using the software on my iPhone on the status screen, I can only see half the screen, the other half disappears under the settings screen, might be due to the version of iPhone. The only other thing is that it will not let me change the Charge UTP setting and it defaults to -20 degrees! It will never get that cold here in WA but it does get down to freezing especially outside and early morning. I can change most settings which I did not think I would be able to on the iPhone, I thought I had to pay for that. Oh well am now a little bit further down the road on the journey. Thanks so much for all your nerdyness😎

@OffGridGarageAustralia Жыл бұрын

Thanks a lot for your kind comment and words, Jackie. That is great to read and I'm always pleased if I can inspire people following their own projects. Version 4.7.4 is the newest one I believe. Not sure why it does not let you change that parameter. Do you get frost in winter near the battery, is this really a concern?

@jackiedines5229 Жыл бұрын

@@OffGridGarageAustralia I have now obtained a disused Samsung phone and this is what I will be using as I get the full page of info and can see all the parameters when scrolling. I downloaded the latest version V4.8.2 - woopee it now changes the UTP, we are in the hills outside of Perth and it is always 1 deg cooler up here...lol - probably do get the odd frost, YES you do inspire me, I am a bit of a chronic DIYer but it is great to be able to collaborate with other likeminded people. There is always stuff to learn and it is what makes the world go around! All I need now is to be able to see what my battery is doing over the internet, when I am away. But I do not have any Victron stuff, my battery is basically providing off grid power to my aquaponic setup, idea being power outages will not kill my fish! Thanks Andy.

@OffGridGarageAustralia Жыл бұрын

@@jackiedines5229 thanks a lot for the update. Great to hear it's now all working.

@sjdtmv 2 жыл бұрын

Well explained Andy, Thanks Andy

@OffGridGarageAustralia 2 жыл бұрын

Thanks Ross!

@MrSqueegey 2 жыл бұрын

Go enjoy that beer Mr.Andy thank you for this tutorial.

@OffGridGarageAustralia 2 жыл бұрын

Thanks, will do!

@1over137 Жыл бұрын

22:15 The charge controllers I have forbid leaving them connected to the panels when you remove the battery. Any thoughts on under volt disconnect while its sunny?

@ilya7zz 12 күн бұрын

This is an amazing video, thank you!

@Leandro2S_ 3 ай бұрын

Good job. A hug from Brazil 🇧🇷

@martin.esslinger Жыл бұрын

Great video! I was wondering if you also tested the GPS/serial port on this BMS. I know that you use bluetooth on the BMS level and a Victron smartshunt for all you parallel battery banks, but as I plan to start with only one battery I will rely on the BMS internal smartshunt for now. I would like to know what kind of TTL and VCC Voltage level this output is so I can order the right serial to USB converter to plug into this port.

@Dutch_off_grid_homesteading 8 ай бұрын

Heya, I probeble go with the jk bms so this is very useful info for me

@finfin82 2 жыл бұрын

Awesome conclusion of the jk hmso settings! Sadly I'm still missing the heating function part... Looking forward to getting any further information on that, since I'm building my battery within the next few weeks. Greetings!

@OffGridGarageAustralia 2 жыл бұрын

The 4s one I had in my hand has the heater function but I don't have the cable for it to connect anything. I will have a look in the BMS settings to spot the difference.

@finfin82 2 жыл бұрын

@@OffGridGarageAustralia Anything new here? i will start building in the next weeks and want to add the heating function from the beginning - i have no clue how to use it or which pin is what. any idea where to get the correct cable? cheers from sunny hot germany :-)

@carlotampus5700 Жыл бұрын

Hi Andy, we're you able to compare the Remain Capacity display of the JK BMS with the display from the Victron Smart Shunt? I'd like to know if there's a significant difference between the two.

@KVAZAR007 Жыл бұрын

Thanks! Won't it make a harm to a hybrid inverter powering the load, if a BMS abruptly turns off a battery due to undervoltage or overcurrent protection?

@lumixfreund7113 Жыл бұрын

Vieles war mir klar aber alles wusste ich auch nicht. Danke für deine Erklärungen !

@kelSto3878 2 жыл бұрын

I cut the sense wires to different lengths, to neaten up the mess on top of my battery and of course it does show differentiated resistance values on the status tab. There was a bit of a debate on the forum regarding the wisdom of cutting the sense wires of BMS's, however it seems to be functioning perfectly. (WHEW! this first time builder thought id made a mistake...) However, the question of the settable resistance values on the settings tab is one i'd sure like to have answered... thanks Andy!

@OffGridGarageAustralia 2 жыл бұрын

Thanks Kelly, perfectly fine to shorten or extend the balance cables. There is no downside to that. The BMS is either measuring cell voltage or balancing but never at the same time, so cable length is not an issue.

@kelSto3878 2 жыл бұрын

@@OffGridGarageAustralia So, just to be clear, i cut the sense cables to various lengths. Individual wires are NOT equal lengths. Conversation on the forum regarding the wisdom of doing that revolved around other brand BMS's and group thought it a no no... Andy, your work has helped me tremendously and i thank you.

@madobox 2 жыл бұрын

Good evening. I'm following your channel from the start. I recently started to build my own system with mostly Victron stuff. And went with JK BMS. But i have a weird issue. Even when i turn off discharge on Bms it still lets around 50W over because my Multiplus still can run on idle. If i raise usage to around 100W turns off as it should. Can you test for me if i have faulty unit. Or this is how this bms works. Thanks

@cell_creator 11 ай бұрын

Hi, do you know if the JK BMS has some kind of pre-charging when activating the Charge/Discharge FETs, or do you need a separate precharge resistor? Thanks!

@williamfinley175 Жыл бұрын

Can you please clarify how the JK BMS behaves if the low voltage shut down is reached? Does the BMS turning itself off prevent recharging from the solar array or if the solar array is sending current to the battery will the BMS accept the charge and turn back on with no intervention.

@joe7949 2 жыл бұрын

I really need to know what triggers the discharge short circuit protection, I keep getting this error on the log when my multiplus ii is connected.

@rays.2480 Жыл бұрын

Hi Guy.. Question.. do you know if there's any Firmware updates on these units ? Also any bug fixes on readings being so jumpy on the newer units, and is there a way to make the BT reception better ? The newer BT units work better. I have the B2A24s200A versions.. I have 6 of these.. and all are in 14s set up. they been working trouble free.. But Slight issues..I have tried to talk to the reps , but they weren't very helpful..

@marclandry4175 2 жыл бұрын

Is it possible to configure this BMS for use with 9x 3.2v Lithium cells or is it only possible to use pairs of cells such as 8s or 10s?

@robertelmore4758 2 жыл бұрын

I have 16 EVE cells with a JK-B2A24S15P. The batteries and inverter are in my shop which is too far away from my house to monitor with bluetooth. I have a network connected laptop in the shop that I can take over from my house. I can view the monitor programs for my MPP Solar LVX6048 inverter and my Victron Shunt this way but I can't find a way to monitor the JK BMS on the laptop. Is there any way to monitor the JK BMS on the laptop so I can also see that from the house?

@gw9568 Жыл бұрын

Hi Andy another fantastic video,question is it possible to extend the Bluetooth on the bms so it can be monitored indoors (bms/batteries are at bottom of garden)thanks in advance

@stevenbraun3115 2 жыл бұрын

About waking up a JK BMS (applying the 9V). 1. What causes it to go to sleep (like low pack discarge)? 2. Does simply plugging in a proper charger wake it up?

@raphle880 Жыл бұрын

thanks for all these test and values. Unfortunatly I have use the same numbers to charge two parallel battery under 12v 280Ah...but the one using the jk bms id charging not more then 83% and the other one using the daly 99,1% (before i had two daly but one gave up after two weeks therefore I have change for the JK. the jk and daly is set for the value as describe for the jk and the victron is set also ....but unable to fully charged...any idea?

@kenti4475 Жыл бұрын

Hi Andy, do you have any experience with the jk bms showing around 80% SoC when in reality the voltage is already at 55.2, meaning already at 100%?

@jericlee1509 Жыл бұрын

hi sir, hi bought 72v/52 amp with jk bms, battery built is ok, i dont know if settings are correct. problem occur when plug to ebike, any suggestion? ( protection discharging short circuit) ,any advise? thanks

@olafschermann1592 Ай бұрын

Thanks for reminding us changing BMS password!

@tny9125 2 жыл бұрын

In my charge controller i have suplimentry this settings: Back to charge voltage / back to discharge voltage. What voltage to insert here? Thanks

@whitesamarrow733 7 ай бұрын

Thank you sir for the video. My battery bms has: "Cell ovp release" Is it the same "cell ovp recovery"? It is set by default to 3.38v, should i set it to 3.6v? Note that cell ov alarm: 3.55v And Cell ov protect 3.65V And i have "sleep vcell: 3.10v" What is this and what to set? Thank you

@mikenr Жыл бұрын

Another very useful video - Many thanks Andy! I bought one of these and finally had my battery built and connected up. I started the BMS and all worked well. About an hour later the power cut, connecting to the BMS with my phone, I could see it had disconnected the power due to low cell voltage - I planned to wait until the next day for the sun to charge the battery again. Half an hour later the power came on and the BMS was showing 'Discharging MOS not normal' blinking in yellow - since then the BMS reads very differently to the Victron inverter/MPPTs in my system and even if I click to disconnect in the app of the BMS, the BMS beeps but nothing happens. . . I am wondering whether when the BMS reconnected my system the surge of current re charging the capacitors in the inverter (10kW Quattro) have killed the discharge MOSs . . . I have contacted the seller who kindly just sent me links to the app and instructions. . . 🙃 Any thoughts as to whether I can do a reset on it or other ways I can test it before I have to start crying and buy another one are greatly appreciated 👍🏼

@ArisMad Жыл бұрын

Have a question that didn't found an answer yet...When replace battery bank or use different setup are we able reset to factory default this BMS ?

@johnnyc4544 2 жыл бұрын

Ask and receive! Thank you for this video! 👍

@OffGridGarageAustralia 2 жыл бұрын

Rule #1: Always listen to your audience! 😉

@ThaTySkiE 9 ай бұрын

I just bought what is supposed to be the 4-8S JK-B2A8S20P, the issue is that it won't start on a 4S setup. If I connect 24V to the B+, I get it to start and I can connect to it. But trying on the 4S setup doesn't work. Hardware Version: V9.X Software Version: V9.01M3 Note: I bought this one second hand, used once in 8S configuration. Any tips on this or is this as I fear, the early version that doesn't support 4S setup?

@rOSScOGITANS Жыл бұрын

Hi Andy! I thank you for your time and for the immense value of your sharing of knowledge and passion. I'm having problems activating the discharge with a voltronic inverter (pip max 8kw), when I activate it, the short circuit protection without sparks immediately starts without any visible problem, the wiring has been checked and rechecked a thousand times, in some forum they told me of precharge problems. The discharge is activated regularly if I disconnect the positive pole with the circuit breaker, so the problem is precisely the inverter, which parameters do you recommend me to change (scp delay?)

@anacronataff1 Жыл бұрын

Hi Ross Doc, there will be too much inrush current. I had a similar problem. When switching on three mppt charge controllers, the SCP always came. I doubled the SCP time. From 1500 to 3000. Now it works for me.

@prasadhg82 Жыл бұрын

This is really a great video. Very informative and thanks a lot. What do you think as the best charging voltage and charging current for a 24v ,135AH cells behind jk bms?

@lezbriddon 2 жыл бұрын

yeah this is the one for me. the blutooth is what i was looking for but the capacitor balancing is brilliant. i've contacted them on aliexpress to see if i can buy the 24s and connect to my 20s pack till i switch to 24s, or will cells not being connected cause an issue

@OffGridGarageAustralia 2 жыл бұрын

You can use the 8s-24s BMS for your 20s battery and follow the instructions on their website on AliExpress. Very easy to setup as you just leave the unused cells disconnected. Link is here... off-grid-garage.com/battery-management-systems-bms/

@evil17 2 жыл бұрын

Always great info Andy, sometimes I watch ur vids a few times over. A question, I have 2 x JK 24v 200A BMS’s, can I use them in series for a 48v system? I don’t know if the MOSFET’s are rated for this voltage. Q2. My newish 24v JK wont connect to BT app & makes a 3 short beeps then 1 long beep, it took a bit to initially connect when I first switched it on a week or so ago, it worked fine mostly for a few days and then started this beeping when I tried to connect the app to it.

@MrLalrooney Жыл бұрын

Thanks Andy for the detailed explanation of the settings in the JK. I am considering getting one for one particular reason. That is the heating function. I wonder if you could do a run through on the heating function. I know it doesn't apply in "sunny Australia" but Ireland can get quite cold in the winter. TIA Larry

@manjulabw Жыл бұрын

Hi andy. my Deye inverter indicate 1v less then my jk bms show. where should i adjust the voltage first? please let me knw

@fotoamgamgfoto3695 Жыл бұрын

Hi! Is there a way how the BMS could measure the real capacity of the battery? I used deep discharged 18650 cells, stored at zero voltage all the thousand cells came back to 3.6V than made them paralel and built big 7S120P pack and put a JK BMS on it. Not sure how many Ah left in the cells, would be nice if BMS could measure. Rated is 2.75Ah each cell so I guess 2Ah per cell left in best case but not sure. So entered 240Ah for the settings....