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Can you explain more about your process? As far as I unterstand your explanation, you built your one Salt battery? According to the the informations on your post, your battery exists out of: Salt MnO2? Carbon I did some research and found this: What salt would be best, I found Epsom salt...

I found this: https://diysolarforum.com/threads/jk-jikong-rs485-interface-wiring.35071/post-442064 An the esphome jk bms github shows a direkt wireing of the RS485 -> I'll give try.

@Nami Do you have a manual / more informations about the connector. I do have the JK-B2A24S20P and try to get RS485 working. Does the RS485 socekt provied native RS485 or do I always have to use the RS485 Adapter from JKBMS?

I bought this with my BMS. BUT: The Socket doesn't fit in the CAN/RS485 socekt. Only in the GPS Socket :rolleyes: This is the reason I'm asking for a update manual...

I do have the same JK BMS. This seems to by a HW Version 10.XG. So far I can't find any manual for the pinout of the small connectors under the balance leads. Does anybody know the pinout of the RS485 connector and what's the small connectors under the bms leads? THX

Perfect! This did the trick! Thx

Well, I also adopted the Dashboard from Joe. My "problem" is, the numerical numbers are updated fine. But the txt from "myStr" is not shown immediatly. Eg. Currentflow is -10A, but the working mode still shows "Storage". If I check the data "Inspect" -> "Data" the myStr is "Discharge".

Did an update, impedance is now working according to V126 protocol description: https://github.com/TheSmartGerman/SolarShed Had to add, another *.prom file and use additional identifiers (BMS_A_imp). I plan to make the BMS name also an argument... so if you use more then one BMS you can all...

Still struggling with the update of the Grafana string, any ideas: Current is ok, but the myStr is not updated... BTW. Got the impedance readout fixed - well sort of... I get data, caluclations seems to be ok. But comparison between the readout data and shown on the BMS Display seems not...

Or check 2. Post in the thread

Check the Manual for the Communication Protocol http://chargery.com/uploadFiles/BMS24T,16T,8T%20Additional%20Protocol%20Info%20V1.26.pdf

Can anyboy give me a advice for Grafana: My charge/dischgarge protection is not shown properly: I use the panel from joe. So it should show the status. It's configured to show the last "myStr" but it didn't worked yesterday. Is it possible to change color too? Also if it goes from "Release"...

Hmm it looks like your script is coded for V1.22. There has since been a few updates. Could the extra information now in the hex output be interfering with your script function? Well I did some rewirte of the code, you can select different Protocol versions...

https://stackoverflow.com/questions/7362504/bash-script-prints-command-not-found-on-empty-lines Switch VSCode to from CRLF to LF did the trick :D

Well BMS is working fine. Expect for the Impedance Output. For 16 cells, I should get 40bytes but it outputs 59 Bytes. This cause lengt and checksum check to fail (it added this too :P) Can't get getMPPSolar.sh working. I tryed to make it executable using chmod -x. But now success. Just...

@BarkingSpider I forked your projekt and updated it to latest protocol version. spend some afford to make some settings switchable (protocol version / cellcount / device port) Be carefull, a lot of firts in it: - First time I use Pyhton - First time I use with Grafana - First time i use...

Yes solarassistant looks great. But you have to pay for... There is a similar project called: https://solaranzeige.de/ It's in German. But never tried it...

hey, no it's not working as a bridge. Sry, didn't mentioned it. Well if anyone knows about a (open) lib protocol implementation, this would make the task easier.

Well, at the moment I do some testing with SolarShed https://github.com/BarkinSpider/SolarShed, at the moment I'm testing the latest Chargery protocol (1.26). After this I'll give at try with the lib procotol... Do you know this project: https://github.com/jblance/mpp-solar it also supports jkbms

I do have a 5048MGX

Ok, my plan is to branch your githup. I'll also updated the Chagery Protocol too the latest version. It also reads impedance values of the battery. my inveter response to the query looks like this: So I have to grep for "ac_input_voltage" instead of "grid_voltage" right? Well inveter is...

Ok, I got it... This is the line i was looking for: I'm using a different inverter... therefore I have to do some ajustments.

Hallo can anyone explain how to getMPPSolar.sh I installed mpp solar python with: What output / settings I have too use to get it working with node_exporter.

Well, if you set Set Step 16 to OSO is only should charge from solar. I do have a 5048 MGX, if I switch the device of, it's charging only with solar.

Ok, well still learning to unterstand the PIP but my understandig so far is: 1. If I select SBU - it will use solar / battery fist. If the requested power is not sufficiant it will switch to utility (Bypass). But not charging the battery using utiltiy. But if you request e.g. 1000W and solar is...

Well, I have a 5048 MGX and so far I seems ok for me. No utilty charing, if not neccessary... But it's still not under full load... Check this out: https://www.mobile-solarpower.com/all-in-one-122448v-packages.html

Well check wiki: https://diysolarforum.com/ewr-carta/diy-lifepo4-charge-profile-parameters/ 12V LiFePO4 Battery w/ BMS: Absorption: 14.5V Float: 13.6V Inverter Cut-off: 10.7V-12V (depending on size of load and voltage drop etc) Nominal voltage is 3.2*4 = 12,8V Sure if you like not to stress...

Your "problem" is Setting 12 - Voltage 12V This is the nominal voltage for the battery. It have to be lower eg. 10.5V then It will charge with untiltiy until you hit the voltage of step 13 This is my understanding of this settings.

Sure, if I wait for Low Battery Cut Off, it may act different. But if the BMS cut off earlyer I will have a longer transfere time. Well the capacitors will loose voltage instandly, after droping under a sertain threshold the inverter can switch powersource.

Well, I'm not sure what's right. It's not realy stated from which power soure the transfere time to another. In fact Unitlity / Grid is the lowerst priority. Just backup if solar and battery are not sufficiant... How does the "famous" PIPs like 2024MS behave? And discharging the capacitors...

I know the video / tutorial. Just like to know if I connect my DCC to negative. How I can precharge... this could be a solution...

ok this is intressting. In the manual 1.0 the negativ installation for common port is shown: In Version 1.1 it's on the positve side using he ISO-Board Would it be possible to have precharge using the delay board ? So if you connect to negative side, just use the delay board + additional...

Just another question to the DCC experts, maybe I missed it, but the thread is quite long now - When the DCC is shut-off, you should be able to measure 7,5kOhms? - It always provide a voltage! => This will cause the inverter so see always "see" the battery. But if power is requested it will...

Hello, I may have a problem with my MPPSolar 5084MGX inverter: My transfer Time is way to long! Is there any setting beside Step 03 - AC input voltage range ? According to the manual it should by: Transfer Time: 10ms typical (UPS) 20ms typical (Appliances) If I simulate a load with 1kW...

@BarkingSpider shouldn't it be 64 not 96 ?