Search results

Well I must say that JBD's support via Ali-express was actually darn good! They gave me the password (wrong one the first time but hey it happens) to the latest software so I could log in as "production manager" and make changes to any setting in the BMS using the very latest version of the...

No I appreciate it @RV8R, I don't you had no ill intent, actually the opposite! I will be honest I didn't read the 30+ pages of the forum thread to read the whole story. Anyone have a 30 second version? I'm trying to understand how a short circuit (and where) would cause the ANL fuse...

@RV8R Ok, yep you've scared me sober now. I had used ANL fuses coming out of the packs going to the inverters (most packs right now I have are 16S LFP no parallel). Renogy and Victron is what I based my design, they recommended ANL fuses. But it seems that's not a good idea. So time to spend a...

@hwy17 So I was looking at T-fuses last night. My goodness they are expensive along with the holders for them. Am I looking in the wrong place? I thought this was supposed to be cheaper alternative to breakers. Right now in my cart on Grainger.com I have 6x 60A Littlefuse Type T fast acting...

So its working now! I actually already had that version of the software but it was displaying a garbled mess. I decided to plug it into the RS485 next to the CAN like you mentioned above and it connected, 99% of readable there were still a funky symbols. But I was able to modify the parameters...

Awesome thank you for the additional info! @LakeHouse - I agree with almost all of my builds are LFP, but these fell into my lap and I'm not going to waste them. They are properly stored, and evaluated during their life with high end equipment. Sorry about the drawing - yes they are double...

Thanks @Eugenjbd I will download that version and give it a try. I have so many versions of their software lol. Hopefully this one connects, lots of times I get a garbled mess of ascii. I did order the "official" cable from JBD to connect from the BMS to the computer from Ali-express so it'll be...

Thank you @hwy17! I'm a bit confused at what you are saying. Forgive me but I'm completely new at paralleling BMSs with individual packs. Are you saying I should add either a fuse/breaker on the negative only between the P- of the BMS to the busbar? Each BMS has active balancing built into it so...

Hello bright minds, First off I apologize for my terrible drawing, its a gift I was never blessed with but it gets the point across. I have 3 batteries that are already in a 13S configuration (they came from Audi Q5 hybrid vehicles) they are in a nice metal enclosure and you just have your two...

Thank you guys (and gals?)! Yes it will have plenty of cooling and not near the batteries themselves. Cheers!

Hey folks, I am trying to figure something how here, maybe someone can help. I have the same BMS well its the 100A-200A version. JBD-UP16S010-L-16Sl100A-B-R-C. I noticed even on your screenshots that the Capcity Config for 80% is set to 3.3V. Though under the Basic Protocol Parameter...

Hello bright minds, I have a really dumb question, but I figured I would ask just in-case it IS an issue, I don't want to find out when its too late! I'm designing some custom enclosures for some of my battery packs. Is there any issue or safety hazard by mounting a JK BMS sideways? So say you...

@gotbeans First off, thank you for the advice! I appreciate you taking the time to respond with your advice. Since I already own the BMS's I might as well use them that way I can monitor each set of cells from each battery via bluetooth. I already have a beefy busbar and appropriate breakers...

I forgot to mention. I have a custom PCB installed under the plastic cover that connects all the balance wires via PCB and the exit point is a 30P IDC connector. So I can just plug in a 30p IDC cable and I get all my voltages from each of the 13 cells. To go from the IDC cable I used an adapter...

The batteries: I have 3 Audi Q5 hybrid batteries that are brand new. They are Li-ion (Lithium Coltbalt Magnesium, like your 18650's) chemistry. They are 13S for 48V. I bought 3 JK BMS's: JK-BD6A17S6P I want to use these three batteries in parallel. However I am unsure the the safest and best way...

Thanks folks!

Ok so my setup currently is 2x 100watt 12V panels. I build portable 24V battery packs for use around the house to power small things. Meaning there is never batteries attached to my solar charge controller when I am not actively charging something. I got to thinking about the LOAD + = ports. I...

Disregard. I am an idiot. Upon further inspection of all the cables (as I got two BMS's for 2 packs). I discovered that the picture of the wire I posted above which is loose, is NOT the same one on the actual BMS, the BMS itself has another one of those wires with the male end on it. So dumb. Oh...

A JBD BMS https://jag35.com/products/smart-bms-for-16s-lifepo4-w-lcd-screen I have banana plugs for my benchtop equipment, doesnt look that that. Almost looks like the cables you plug into a cheap multimeter (without the L shape though that MMs have). I'm dead in the water until I can mate...

This cable comes from my JBD BMS system. I need to buy/create one that mates with it to complete the connection. I have no idea what this cable is called, and rather than scour the web I figured I would ask here. Looks like I need the "male version" for it to plug into. Thanks!!!

Your right @SeaGal I tend to be long winded and will post in a fresh/appropriate post. Much appreciated! Cheers.

Here's my rule of thumb for those sites. I tend to only use Aliexpress and I tend to only use it for non critical parts and that I don't need right away. I also use paypal to pay because if there is any problems paypal never gives me any problems refunding my money and I dont have to give the...

Thank you at @MichaelK, and yes I totally agree with what you are saying. I'm not sure what prompted me to be worried that the 4 panels Voc in series thats is going to be 91.2 Voc would be an issue since the Max PV Voc per the manual is as stated above. I guess I just asked myself "well is there...

Awesome, much appreciated! Cheers

Hello brilliant minds, I have been dabbling with solar, in particular building portable 24V packs. I have two 100 watt panels in series to give me the 24v. So far so good, I'm getting the full rated amperage from the panels (just shy of 6 amps) and they fill up my diffent packs no problem. I...

Yeah, I suppose I could do something like that or even add an audio beep inside loud enough (since sound travels so well in water) saying 'hey your battery is low'. You wouldn't crap yourself, if your are diving in a cave you have a total of 6 lights, 3 on yourself plus 3 on your buddy and if...

Thanks all! I have a prototype underway. Sadly to test my project I had to cough up some coin for the "headlamp only" the company sells so I can test it with my power pack. My only reasoning for a BMS would be to avoid over discharge/charge. Divers run their lights into the ground, and they also...

It's not about panic, is the fact that most recreational "advanced" certified divers (which are cut off at 130ft) dive on a single aluminum tank most of the time. So say you start your dive at 30-60 feet for say 10-15 mins even a drift dive, you have eaten up some of your O2, an experienced...

I forgot to mention that I have stayed in contacted with my dive instructor's who own their own shop and I am like family to them. So getting access to testing hydrostatic pressure shouldn't be a problem. Tanks have to be "hydro'd" every 5 years to ensure their integrity. I've also taken some of...

Thank you all for the comments and product suggestions. Silicon crossed my mind as its the easiest but I'm not a fan for reason listed above and the abuse these things take, add in salt water dives and over time things will degrade. I like the products suggested and the oil method too. Yes...

Hello brilliant minds, I'm working on a prototype for providing a lot more power than what current dive lights provide for cave diving. It's clear they are using a 4S Li-ion setup that lasts about 5 hours. The price is crazy for what it is. I wanted to see if I could build my own pack with a...

If there is a BMS on those 2S or 3S packs, then if you were to hook them up to a charger pushing 20A if the BMS isn't some cheap Chinese junk off amazon and actually works it should cut off the charging saying 'nope too much'. If there is no BMS then those batteries are going to take the 20A and...

Yeah the BMS's on the non Renogy packs have BMS's that allow me to send out wifi data which I suck in and process with MQTT, I've even got a custom dashboard I created with grafana that essentially shows me what the mobile app for the BMS's do only not the same visuals. I can't directly tap...

Greetings bright minds from Florida, I am an electronics enthusiast for some time now, it started with micro controllers and programming simple sensors to a full blow electronics room! I have everything necessary (or mostly everything) for working and building projects. Many of the equipment is...