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I recently got a 12v 230 ah lithium battery. I did a load test to see if it could provide the 200 amp limit which specifications said it was capable of. In the video I showed how I determine the correct charging and float voltages, how to use DC rated clamp meters, compared the bluetooth bms...

Here is video I made about the Pace BMS Soc

I just made a detailed review of Orient Power 12v 230 Ah lithium battery . I opened it up and took a look at the construction inside, looked at the operation of the bluetooth app, and then began charging it with a power supply to see how well the SOC was calibrated. But the weather turned on me...

I have Jakiper batteries. I got some of the older generation ones that weren't as good as the newer generation ones they sell now. I have one of the Powerwall types which is pretty much like the Jakiper pro server rack battery. They use Eve Cells and a Pace BMS. Andy at Off Grid Garage has done...

Did you ever make any progress with this ? I don't know canbus. But the way I would approach it is that if Kilovault is able to canbus to inverters, then look for published data from those inverters . Many seem to use Pylontech communications Here is something that may hopefully be of help to...

I made a video showing my evaluation of SOC readings from Pace Bms used on my Jakiper / Orient Power batteries. My observation is that after a few days where the batteries don't totally fill up all the way the SOC gets off and should not be relied on. It could also be caused because the Pace Bms...

Andy on Off Grid Garage talked about higher power Pace bms from Gobel .

are you sure it has Pace BMS in it ? Watch Off Grid Garage videos on Jakiper batteries - he did some evaluation and testing of Pace BMS. Are you connecting to the RS232 port on it ? ( pace bms has rs232 jack) . That is the only way that I know that BMS tools communicates with bms. I have...

I think you can buy a Pace BMS from Orient Power . Look on their website or contact them. But I think Gobel also had a newer Pace BMS. If you want monitoring of Pace BMS Look at this project https://github.com/ClassicDIY/PylonToMQTT which is what I use with my pace bms on Jakiper / Orient...

No sarcasm - I believe you will have a very nice battery.

thanks - yes I am sure it will be better home built and with better bms

Goldserve - Looks like you are using the same Classic DIY Pylon to MQTT software as I do. I am wondering if you could send me a copy of the original SOK parameters that came with your batteries ? I would like to compare what is in those with what Jakiper has. It is the same BMS and using...

Let me know how the $ work out for building your own. I had a look yesterday at how much cells cost - and seems like $1500 to 1600 for a Jakiper 100ah battery all built is a pretty good deal compared to buying all the parts separate. Yes I realize that an active balancer is better but still...

The Jakiper BMS will keep balancing when one of the cells goes into OVP . You can get the software and tweak the settings if you want. As others have said , the passive balance current is very low. It can take a really long time to balance . If you want to try and manually balance it you can...

Okay thanks

Could you share what those settings are ? Thanks

I have my Jakiper JK48v100 ( non pro model) on the bench and tested out the Pace bms for balancing. Andy from Off Grid Garage also recently made a video about this bms. At first I thought it only balances when charging which seemed kind useless for unbalanced cells since the passive bypass is...

The Jakiper monitor has been working great for me. Let me know if you have any questions. There has been a recent add on to make it work for SOK server rack batteries too.

It will be interesting to see how well your PID and those dimmers work out. I think you could have also just used some inexpensive SSR too ? I haven't jumped into the Home Assistant world yet since I would want to run it on a Raspberry Pi which of course you can't get these days. I was...

Just thought I would mention that there is a project that works with Jakiper and probably SOK ( same bms ) and maybe others. It can be used with Raspberry PI or Esp32 to get the data from batteries and send it as MQTT and also integrates with Home Assistant. It uses the console port and gets...

Another way might be to just use a esp8266 with a one wire temperature sensor , you could actually put multiple temperature sensors on an esp8266 and label the source of each sensor. I use Tasmota and makes it very simple to use one wire sensors and make the data mqtt.

Not sure on that - I would think you could get the rs485 data at same time as the console port. But I never tried that. The original project started by using RS485 port to get data from just one battery pack.

Keep us posted how your battery heating goes. I have my batteries in cold and built an insulated box around them, and put in a space heater that is controlled by inexpensive temp controller https://www.amazon.com/gp/product/B01KMA6EAM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1. Something of...

oh - I guess it was renamed , it evolved to do a better job. Check here - I will find and fix the old link in thread . Let me know how it goes and if you have any questions. https://github.com/ClassicDIY/PylonToMQTT

Which version of the program are you using ? What is the balancing setpoint at now ? And also what is the balance differential set for ? I have seen people say generic passwords - I need to try and remember what they were or where I saw them. I think it was either in the comments on some of my...

RCinFLA There certainly is a lot of chemistry and physics to consider . I will have to study what you just presented so I can absorb all the details. Perhaps I can in the future use the monitoring to see exactly what is happening with the cells . Do you have any video presentations on lihiums...

To be fair - I specifically asked what would be the best current if I want to try and balance my batteries using a controlled cc cv that can be provided by a regulated power supply. I will have to look through all the settings for what the bms can and can't do. As far as I know this is the same...

Jakiper/ Orient Power techs suggested I use 1.5 amp charge from power supply to balance. Balancing current is 40-75mA

I can compare the BMS SOC reports to my Midnite Classic Controller Whizbang shunt ( for all packs in common) . When I first put these all online in warmer temps , the Midnite SOC and bms SOC tracked very closely to each other. But when it got colder and I started drawing the batteries down more...

RCinFLA Thanks again for the info. I read and understand most of what you showed above. I think I will redo my battery interconnects mainly so I can remove one battery at a time if I want to try to individually balance the cells ( need to open it up). Besides the all the poor climate control...

RCinFLA There is a lot to consider and so much for me to learn . Not sure if you meant I should keep the color codes consistent between temps and voltages ? I figured out how to put labels on cell temps . Four temp sensors are between cells , one is for mosfet ( I think) and the other one I...

Temperature comparisons from last post - yes there is > 10 degree F difference between top and bottom batteries.

Good idea on the battery pack temps - I am able to get all 6 temp sensors data . I only have the lowest pack set up for that now though since it is probably the coldest. I didn't realize that a colder lithium battery would change that much compared to the others. But what you say makes sense...

I don't think it has a setting for balancing after charge stops. When I first got the batteries I watched the Jakiper provided software closely. It has an indicator of when each cell is balancing ( we haven't been able to find a report for that for software I use). So yes the balancing only...

I have three Jakiper JK48V100 48v server rack batteries. The cells differential goes far apart on charging. The video I made show how I interpret the data from the past 24 hours to see what is happening the all 16 cells in each battery pack. I am looking for feedback on my analysis and also on...