Jk bms current calibration. It is a plug and play … Hi, I use a JK-BD4A17S4P.

Jk bms current calibration 3 and Goodwe V1. Then use the voltage calibration on the bms setting and insert the correct voltage of the pack. /src/JK-BMSToPylontechCAN. The board has functions like voltage acquisition, high current active balancing, overcharge/discharge protection, Bluetooth Charge Current Limit: 10A: Definition: Charge current exceeds charge protection current to enable: Balancing Current 0. I have the little LCD for the bms and it showed a charge of around 90% before the reboot (e. JIKONG BMS (JKBMS) Product introduction - Download . If it is a high current BMS it may have sets on both sides of BMS circuit board. Thread starter Redbeardbeer; Start Hi, I have JK_B1A24S15P. ion function can be used to calibrate the BMS. 17 I have used many of the JK B2A24S15P with no issues The PB1A16S15P seems to be the latest version although it has an ability to talk to the INVERTER (which I don't need) vs the older version has 2A instead My new ordered JK-B2A8S20P BMS arrived. Keep in mind that programming will fail if JK-BMS is connected and switched off. 60, in-between, loweer, and what I seem to get is that @ the bms app on my iphone does not show discharge current or watts. Once Calibration Voltage is entered, then Reenable Charge, Discharge & Balancing functions. This is a common practice for even low balancing current BMS's. S. Calibration is important for the SOC calc. Our BD6A24S12P Active Balancer BMS offers a range of ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE - esphome-jk-bms/README. Other battery profiles that utilise the pylonton/goodwe protocol with differnt cell counts may also work, eg Alpha Ess some news: the esp is now connected to the uart-rs485 port of the BMS. This fork supports CAN bus communication with inverters At present, the company's main products are Smart BMS with active balancer,Active balancer, lithium battery Voltage difference repair instrument. 6v and reset the SOC to 0%. 0 on GitHub. JIKONG BMS (JKBMS) CAN Communication Protocol - Download . Last couple of days my bank reached the low cell voltage cutoff of 2. [sensor:127]: 'jk-bms cell voltage 1': Sending state 4. Skip to content. The BMS looses calibration over time and needs the full charge to reset. ESPHome components to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE. JK BMS. should be at least 10A less than BMS change current protection, 0. Thread starter MrPsychedelic; Start date Sep 20, 2024; M. It is a 120Ah battery and the original BMS was able to charge and discharge with 100A (had other big disadvantages). Could you monitor the actual_battery_capacity value for some days and provide some updates? I assume the resolution is super bad here. Nov 12, 2024. If you fully charge you will get a slight degradation in charging efficiency above Hi all. 2、Measure the actual current of the battery pack with a clamp meter, and fill I have designed and build a Hardware interface baord pictured below on the left. But the i flash the JK-BMS to a esp then i get always this. [13:15:34][D][sensor:110]: 'jk-bms current': Sending state 0. What do you expect here? Do you know in detail how to calibrate the BMS? In bluetooth application, this field shown SOC base on voltage is not good but it can be a basic point for avoiding the wrong SOC calculation of JK-BMS. ESPHome component to monitor a Jikong Battery Management System (JK-BMS) via RS485 or BLE. *Cycle Capacity: Represents the There is only one current calibration, seems to do both directions, it's probably more important to do charging current. JK has advised to use a high current f I have designed and build a Hardware interface baord pictured below on the left. Monitor multiple JK-PBx (hw v14 & v15) using RS485 internal network. Changed the cons current charge to 100A esphome-jk-bms-can. LucianM New Member. Reactions: yur43. 27, but the problem remains. I just missed to look on the documentation to see for which uart are used 21 and 20. Aug 9, 2024 The port is limited to a maximum of 3. The equalizer works for 2A Contribute to obksmitt/esphome-jk-bms development by creating an account on GitHub. I use a similar one, and although it’s not laboratory quality, nor has it gone through a calibration procedure, it will be close. never mind, can't upload, I draw 30w or so, and the current reading is all over the place jumping between 0 and 5 amps. I assume the value will drop at some point from 512 to 256 or something. The rest is to keep the charge prolonged Contribute to AlexParshin79/jk-bms development by creating an account on GitHub. A schottky diode is inserted into the RX line to allow programming the AVR with the JK-BMS still connected and switched on. 6v (48v system) So, where is the In the charging process, if the charging current exceeds 10A continuously for 10s, the BMS will generate "charging over-current alarm" and close the charging MOS for 50s. in the upper left corner to access the SCAN. This fork supports CAN bus communication with inverters supporting the CANBUS Protocol compatible with Pylontech V1. ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE - syssi/esphome-jk-bms Overview A lithium battery smart BMS, designed for big capacity series lithium battery packs, is a management system that provides a range of features, including voltage collection, active large current balancing, overcharge, overcurrent, overtemperature protection, Coulombmeter, Bluetooth connectivity, GPS remote, and more. from esphome-jk-bms. All has been working fine in the last week but today the BMS went Forums. i'm used to the xiaoxiang bms app and the overkillsolar bms (rebranded JBD bms), which shows net charge or discharge in watts. Since I changed the BMS to JK BD6A20S10P, which also allows 100A contnious charage and discharge, and installed this dbus serial battery stuff to my Cerbo, I am not able to bring the environment to higher Amps for load. 00000 A with 2 decimals of accuracy [13:15:34][D][sensor:110]: 'jk-bms power': Sending state 0. Key details include adjustable protection thresholds for overcharge, overdischarge, and overcurrent, support for Charge Current Limit: 10A: Definition: Charge current exceeds charge protection current to enable: Balancing Current 0. 10 with 16x 280AH Cells and an Espressif ESP32 WLAN Dev Kit Board Development Bluetooth Wifi v1 WROOM32 Node I bought JK-B2A24S20P and started testing it with 16 battery cells (3. 65, 3. This document is a user manual for the JK-B1A8S20P I have designed and build a Hardware interface baord pictured below on the left. The standard RX of the Arduino is used for the JK_BMS connection. BMS amps is calibrated at charge. 7V total pack JK-BMS-bluetooth-Manual - Free download as PDF File (. 2v/cell nominal. Sorry for my Google English. A clip-on DC amp meter may not have sufficient filtering for this ripple current effecting its reading. Then you should be ok. This has worked fine for any of us using the Victron Smart Shunt, and it keeps the SoC from drifting constantly (as the JK BMS seems to). It is a plug and play Saved searches Use saved searches to filter your results more quickly Protocol converter from the JK-BMS status frame to Pylontech CAN frames. Thats works perfect and stable to the mqtt broker. The equalizer is suitable for 2 to 24 strings of battery packs with voltage acquisition and equalization. Коди на 50 та 80 баксів закінчуються дуже швидко, буквально за кілька годин, тож не втрачайте час. New posts Registered members Current visitors Turn the switch on and the reduced current will slowly feed the inverter caps and the inverter turn on with no complaints from the This issue was widely debated last year in a post that I started. ; Remove the complete BLE communication but add a number of template I would like more info about the Max charging current on JK BMS. Sign in Product Current calibration: 2: Hex: 100-20000 mA: RW: 0xae: Protection board address: 1: Hex: is reserved for use when cascading, RW: 0xaf 1, the B- and P- are two 7AWG wires, both need to be connected in parallel Otherwise, it will lead to current errors. After calibration, measure every cell voltage to see if it matches what the bms reports. Reactions: ChrisG. The same could be said about the JK BMS, or any BMS for that matter, they all measure current using a shunt which converts current linearly to a very small voltage. When you find an error between the total current collected by the BMS and the actual current of the battery, you can use the current calibration function to calibrate the BMS. C. If BMS thinks SOC is 20% but you're hitting UVP, then you most likely have a wrong SOC value being reported (because of no calibration) so bottom line Atom S3 lite + atomic CAN base seems the simplest, easy and plug and play HW solution to run the JK-BMS-CAN sw with BLE interface or maybe with more "stable" wired RS485 interface (off course in the simple case 1 BMS and 1 inverter) to do manage the smart RGB led to convey usesful information (connection status, etc. minerva. This worked until recently. Navigation Menu Toggle navigation 'jk-bms discharging': Sending state OFF [sensor:127]: Hi All, I have purchased one of these - if the link doesn't work it's the 8S version of the JK BMS. 48000 A with 2 decimals of accuracy [17:25:31][D][sensor:126]: 'jk-bms power': Sending state 40. 12500 V with 3 decimals of accuracy [sensor:127]: 'jk-bms cell voltage 3': Sending state 4. 12500 V with 3 decimals of accuracy [sensor:127]: 'jk-bms cell voltage 2': Sending state 4. shvm Solar Enthusiast. Navigation Menu Toggle navigation. 00000 with 0 decimals of esphome-jk-bms-can. Eventually the battery will stop stop taking on current. Max SOC is at 99% when fully charged. Be mindful if you have the heating on, the car will still be taking current, but not for the purposes of charging the battery. The I configured my inverter to charge the battery with a fixed current of 5A (250W), I measured the current with a good ammeter clamp and I calibrated JK BMS to correspond to There is not much known about the current calibration of the JK-BMS. i see videos of the jk bms app showing net charge or discharge in positive or negative amps -- less useful and silly in my opinion, but acceptable. The above logic is just used (in the case of solar) for getting the SoC set back to 100% Hi all I have a recent instal of a 300Ah LiFePO4 system with a JK BMS on my sailboat. The equalizer uses a supercapacitor as a medium to achieve active energy transfer equalization. I've found under Android 10 (on my older Moto G7 phone) the latest version of the app (4. What's new. I saw this when I had a balance lead fail and the total battery voltage reported was down by 2 cells, even though the battery measured correct at the battery terminals. JK-BMS (JK-BDxx series) – Tail Current must fall under the set value I use this device for the S. I also noticed that I cannot use the parallel button in the PC software. there gently clean the surface and solder ~22cm long thin cable (size does not matter ) to the end where is end of Hi community, thanks for this awesome tool. It can be simply because they were NOT top balanced in the beginning (JK BMS has an active balancer though), 1 cell is from a ~10 month old batch in the second battery, simply the SoC is determined by the lowest SoC cell which impacts a lot one battery and the voltage measurement "tolerance" are quite high (one BMS has approx 0. 00000 W with JK BMS - User Guide. JK BMS 1: 55. IOS. New posts Registered members Current visitors Search forums Members. [sensor:127]: 'jk-bms current calibration': Sending state 0. Some next steps: Remove all jk_bms_ble entities from the YAML but don't remove the ble_client connection. Additionaly values of Deye inverters are read via RS485 via Modbus. As current is drawn out of the battery the shunt is doing Coulomb counting to keep track of the SoC ups and downs. The calibration way is to fill in the I am trying to set the calibration voltage on my JK 8S BMS but every time I tap "OK" it says system entry failure. Joined Oct 7, 2022 Messages 31. cpp Version 1. Parameters are set - please see pictures. JK-Smart-BMS-with-Active-Balancer-Instruction-EN - Free download as PDF File (. When rising to about 9Amps, the charging stops and JK BMS reports Cell Over Voltage Protection ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE - Wilco-OS/bms i use the mosquitto MQTT and working fine with tasmota and other Programms. Download. A cracked solder RCV (requested charge voltage) RFV (requested float voltage) SWITCH Float (in settings) are not reported I have designed and build a Hardware interface baord pictured below on the left. Furtheremore this release includes a lot of minor improvements. When it comes to setting my start/stop charging voltages on the LVX6048, if the voltage is off by that much I The JK BMS simply workedfirst time with no headaches. 05700 A with 3 decimals of accuracy [12:54:49][D][sensor:094]: 'jk-bms-can device address': Sending state 1. L. 7. cj0 New Member. The settings are very similar to the ones in the Victron Jk 100A bms question. I made a boo boo and update the 'calibrating volt' setting with a figure that is not accurate. The UART-TTL protocol doesnt provide this measurement. This problem was not fixed in the last JK Inverter BMS update (V15. pdf), Text File (. In this very detailed video, I explain all the settings and menu options of the JK-BMS. You signed in with another tab or window. If you're new to the JK-BMS or just want to understand BMS settings i With current_calibration you can calibrate the current sensor. (Per My goal was to put both BMS I have (JK BMS HW v11 & v10) for a 16s setup over MQTT using the esphome-jk-bms tool. I see there's a "zero drift current calibration" option in the app for each BMS. The monitoring works wonderfully! I have installed a small 30W heating mat for the cold season. We shall break it down and explain everything in utmost detail. 12500 V with 3 decimals of accuracy You signed in with another tab or window. JK-B1A24S15P. Daly is one of the BMS's that does this. A. You are already using some of these pins, but it might work with I use multimeter to do the work when charging at current above 2A on both voltage and current. What I'm finding is that the current measurement is completely all over the place ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE - syssi/esphome-jk-bms At present, the company's main products are Smart BMS with active balancer,Active balancer, lithium battery Voltage difference repair instrument. The follow settings can be controlled via bluetooth now: number: - platform: jk_bms_ble jk_bms_ble_id: bms0 Note Pylontech uses 15s/48v Goodwe uses 16s/51. It's available via BLE only. Again, remember that your inverter stopping at 10% SOC depends on the JK BMS properly calculating that SOC in the first place. @hwy17 Thanks a lot for taking the time to respond. sh INFO Reading configur There is a difference between current calibration and the balancing current. After modification, the current acquisition will be messed up! Your 3. 2024 на аліекспрес червневий розпродаж. Exactly, older JK BMS, ≤ HW V 10. You signed out in another tab or window. I set 100% to 3. 12800 V with 3 decimals of accuracy [sensor:127]: 'jk-bms cell voltage 4': Sending state 4. Hi all, my setup contains a JK-B2A24S150P Hardware Version: V10. The "Calibrating current" is a way to calibrate the internal current measurement to a more accurate reading. Is there a way to reset this to How to JK BMS Open the JK BMs and you will see the BT. Im running the venus OS drive for serial connected bms. ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE with sending status to DEYE inverter using CAN - vvroman/esphome-jk-bms-deye [12:54:49][D][sensor:094]: 'jk-bms-can current calibration': Sending state 1. How do I know if I have a high state of degradation? I have designed and build a Hardware interface baord pictured below on the left. Then set the calibrated value once only. 2V 280Ah each ). It is a START . The board has functions like voltage acquisition, high current active balancing, overcharge/discharge protection, Bluetooth I have designed and build a Hardware interface baord pictured below on the left. May 24, 2022 Then I saw Andy's (Off-Grid Garage) video where he smoked the new 4S/8S JK BMS, drawing about 210 amps to charge his Tesla so I decided to update the original 16S BMS Hi all I have a recent instal of a 300Ah LiFePO4 system with a JK BMS on my sailboat. This fork supports CAN bus communication with inverters So, here it is! This problem was not fixed in the last JK Inverter BMS update (V15. All values are send to Home Assistant. Joined Dec 10, 2022 The JK bms requires a cell overvoltage to reset its Colomb counter to 100%. It ramps from zero current up to peak current in 1/4 of a cycle. 27080 W with 2 decimals of Без категорії Промокоди Aliexpress червень 2024 (частина 2) УВАГА! з 17. I do top balance applying small charging current and giving BMS with 2A balance do the trick, helping it by working like The online status of the BMS is monitored now. Apr 26, 2023 #2 Almost all BMS regulate current as either on or off. What do I enter into the current Calibration - I mean I have current for So I currently use the multiple BMS configuration. Until now, I control it via a separate thermostat. Navigation Menu Toggle navigation 'jk-bms discharging': Sending state OFF Contribute to Sleeper85/esphome-jk-bms-can development by creating an account on GitHub. 6A is the zero drift current of the resistive load. 0 from May 29 2023 Serial to JK-BMS started with 115200 bit/s! CAN started with 500 kbit/s! If you connect debug pin DEBUG_BUTTON_PIN to ground, additional debug data is printed [17:25:31][D][sensor:126]: 'jk-bms current': Sending state 1. ; Optional linear reducing maximum current the bms app on my iphone does not show discharge current or watts. 004 JK BMS 2: 55. I have 2 meters but neither of them I trust 100%. The BMS port connector supports a multi-wire jumper connection of very small wires, but the wires are all run in parallel. Reload to refresh your session. ESPHome config for JK-BMS B1A8S10P via UART-TTL monitoring, ESP32 - JK BMS alarm came on and turned off incoming current into battery, SI did its frequency shifting and closed down the SB output. 2024 по 23. 00000 with 0 It looks like the actual_battery_capacity sensor is useless. It is a plug and play New release syssi/esphome-jk-bms version 1. JK BMS diagnostic, calibrating voltage/currentBetter Batteries I calibrated the voltage at the voltage at the terminals (B-) and it seems it is significantly different from the inverter display voltage which I suppose is at the P-, sometimes by as much as 0. Then the current will ramp back down to zero at the 1/2 cycle time. Why? I read it has to have a very low Our professionals are always at your service if you require technical support, software activation for one of our products, or if you are missing some documents, like a user manual. Setting works for only small charging current upto about 2 Amps. This has all the hardware needed to communicate with BMS and Inverter over CAN bus. New posts Latest activity. Represents the total power output or input of the current battery I have designed and build a Hardware interface baord pictured below on the left. MrPsychedelic New Member. 6A √ 1A 2A: Max Current 40A 80A √ 100A 150A 200A JK BMS held a professional BMS engineer team have more than 10 years experience in the electronics/battery BMS field, strength to design and produce the most Product Overviews: Battery Active Equalizer (JK-B2A24S) is a balanced solution for large-capacity series lithium battery packs Management system. Saturday at 2:02 AM Calibration of the JK-B current works ok for that particular current (for example 25 amps), but it will be inaccurate above and below. The current calibration function can be used to calibrate the accuracy of the BMS current acquisition. Moonwalker Given the huge variations in BMS quality/accuracy, I suppose you can't blame the inverter manufactures for not trusting the reported BMS values for inverter protection (under/over voltage, current limit etc) but it is frustrating when the calibration mismatch causes issues. If you're new to the JK-BMS or just want to understand BMS Is it common to have a BMS lose calibration like this? Note the Ave Cell Volt readings. I did mine at about 50 amps. Do you have your New Generation Active BMS Series: Announcing the release of the New Generation Active BMS Series – ENJBMS series BMS, an improved version of the JK series active BMS. The higher the current, the more accurate it will be able to calibrate. 1. 12500 V with 3 decimals of accuracy ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE - syssi/esphome-jk-bms Contribute to jeremGi/jk-bms-can development by creating an account on GitHub. To recap: 1 x ESP32 for JK BMS Battery 01 (jk-bms Any idea how to fix the SOC on the new series JK BMS? The % charge is wrong and I don't seem to find a way to calibrate that. 5. When it comes to setting my start/stop charging voltages on the LVX6048, if the voltage is off by that much I ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE with sending status to DEYE inverter using CAN - vvroman/esphome-jk-bms-deye ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE - syssi/esphome-jk-bms BMS and battery monitors have a few hertz bandwidth low pass filter to average out the ripple. JK BMS Calibration off. JK-BMS-bluetooth-Manual - Free download as PDF File (. When you calibrated your JK-BMS, did you ever try to determine what the lowest charging current is, that the JK can measure, and at which current value JK starts to return 0 amps? ESPHome component to monitor a Jikong Battery Management System (JK-BMS) via RS485 or BLE, CAN bus Goodwe/Pylon - sildum26/esphome-jk-bms-can I would like more info about the Max charging current on JK BMS. This is done by supplying a steady charge or discharge current. "JK BMS" APP ESPHome config for JK-BMS B1A8S10P via UART-TTL monitoring, ESP32 - jkbms-b1a8s10p. - jrventer/esphom I have designed and build a Hardware interface baord pictured below on the left. Problem with this method In this very detailed video, I explain all the settings and menu options of the JK-BMS. JK-BD6A20S10P. No. You switched accounts on another tab or window. 00000 with 0 decimals of accuracy [12:54:49][D][text_sensor:064]: 'jk-bms-can battery type': Sending state 'Lithium Iron Phosphate' Learn how to build your own LiFePO4 battery here: https://geni. JK-BD6A17S6P. After entering the new password twice, click "OK" to 2、Use a clamp meter to measure the actual current of the battery pack, fill in the actual current into the parameter setting page "current calibration" inside; the larger the actual New posts Registered members Current visitors Search forums Members. charge_a: "100" # Float Voltage : corresponds to the voltage at which JK-B2A8S20P-BMS-USER-MANUAL-V1. Android *Open the App, click the icon. Actually it is a JK-B2A8S20P-H with heating function wich I don't need and did not order, but that's ok. We shall The method of calibration is to fill in the total battery voltage currently measured, and then click on the "small plane" behind the voltage calibration to complete the calibration. We calculate the value based on the number of sampling resistors. T. How to read Current and Charge State(SOC) from JK BMS to ESP32/Arduino ? preferably via Blue tooth connection. 4A 0. I need to purchase some additional JK-BMS's Right now AliExpress has the JK-BMS PB1A16S15P and the JK-BMS B2A24S15P for the same price of 87. The inverter seems to be performing the expected behavior: when the battery reports 100% the inverter continues to trickle in 120 watts Understand, and thank you. XW Software Version: V10. Still not nothing, but way better than the old Ive recently built a DIY 280Ah Lifep04 24V battery managed using a JK BMS. JK has advised to use a high current f *Battey Power: Represents the total power output or input of the current battery *Remain Battery: Indicates the current percentage of battery power remaining. The peak current is actually about 40% more than the average current. It will periodically connect, then loses connection, and then never connects again until I restart the esp32. g. yaml. ESPHome component to monitor a Jikong Battery Management System (JK-BMS) via RS485 or BLE, CAN bus Goodwe/Pylon - sildum26/esphome-jk-bms-can Hello, I uploaded the following code for ESP8266 D1 mini and unfortunately nothing works - what am I doing wrong? substitutions: name: jk-bms device_description: "Monitor a JK-BMS via UART-TTL" ext ESPHome component to monitor a Jikong Battery Management System (JK-BMS) via RS485 or BLE, CAN bus Goodwe/Pylon - Uksa007/esphome-jk-bms-can. ) I have designed and build a Hardware interface baord pictured below on the left. 7V total pack Actually on the Heltec/JK-BMS with active balancing, this is not the case. 1v. As far as discrepencies; currently the JK BMS is reporting 53. JK-BD6A24S6P. Running a 3kva Victron Multiplus. I have two batteries that I use your integration with, and I really find it useful. I have followed general settings for the JK Lipo setup, and have tried max charge to 3. Not a major issue as I use the SMA Canbus which ignores 100% SOC and instead charges to the JK BMS reported voltage unlike the Chinese AIO inverters. Set it to -1 to flip the sign if you experience wrong charge/discharge meters. It turns out that the issue that the JK engineers were afraid of was the cross rush of current that would occur if two batteries were connected together with a large difference in I have designed and build a Hardware interface baord pictured below on the left. Без категорії Промокоди Aliexpress червень 2024 (частина 2) УВАГА! з 17. 12400 V with 3 Not a major issue as I use the SMA Canbus which ignores 100% SOC and instead charges to the JK BMS reported voltage unlike the Chinese AIO inverters. We will answer your email shortly! Is there a trick to getting the JK BMS to accept the voltage you put in for calibration. A pure sine wave inverter does not draw a constant current. Understand, and thank you. Remove the mqtt component and add the api or web_server component to check the uptime from time to time. A cracked solder Well- it sure seems like this is working now. The standard TX of the Arduino is used for Serial. md at main · syssi/esphome-jk-bms. It is a plug and play Hi, I use a JK-BD4A17S4P. Ideally, If this is not the case, it may be due to poor calibration, a voltage drop due to the cables or failure to follow the instructions for your inverter. 5 C (A) the charge and discharge efficiencies drop to 96-97%. Our BD6A24S12P Active Balancer BMS offers a range of Contribute to Sleeper85/esphome-jk-bms-can development by creating an account on GitHub. My Sunny Island ignores the calculated SOC 100% and does not curtail PV production and charging until the 100% SOC is from a cell RCV trigger. Regarding "SOC control is a lot more accurate than voltage control," for the past day I've been reading about how the JK-BMS grasp on the SoC is less than trustworthy, and if you're using a JK-BMS, it's a better idea to use a Victron shunt to monitor SoC. {name} balance starting voltage" voltage_calibration: name: "${name} voltage calibration" current_calibration: name: "${name} current calibration" power_off_voltage ESP32-S2 Wemos Mini Optional below, as seen in pic above: RS485 between JK-BMS GPS port and ESP32-S2 Wemos Mini, uses JK RS485 adaptor and RS485 to TTL3. i'm used to the xiaoxiang bms app and the overkillsolar bms (rebranded JBD bms), which shows net I have JK-BMS plus Victron family - SmartShunt, Multiplus II, Cerbo GX and Smart Solar MPPT 100/50. 6) works with both the old BMS and the new one. If it is exceeded does the BMS limit the current of cuts out charging? HRTKD Boondocker. W2S = W2S + (Voltage * Current): Current can be negative or positive How to program and set parameters. Contribute to Sleeper85/esphome-jk-bms-can development by creating an account on GitHub. ~/GIT/esphome-jk-bms$ . syssi commented on December 1, 2024 1 . Calibrating Current This is best done with a decent DMM (meter) and a bench charging source, First without the charger, check the meter reading for pack voltage and set the Calibration voltage to match, then add a charging source, check the amperage with the meter and set the Calibration Current to match. If the car won't allow 100% to be set, this may be a calibration issue and address that aspect first. [10:30:20][W][component:238]: So it's either the BMS app or the BMS itself that's misreporting. Коди на 50 та 80 баксів 1, the B- and P- are two 7AWG wires, both need to be connected in parallel Otherwise, it will lead to current errors. Sending data to the api, the most sensor and esphome-jk-bms-can. However, I discovered that lately, the bms0 is fond of going offline which is weird and it has been re Hello, I have the same problem as you. No amount of voltage and current calibration gonna fix this SOC drift. JIKONG BMS (JKBMS) Monitor for Windows - Download . Thread starter RCinFLA; Start date May 24, 2022; RCinFLA Solar Wizard. akumd; Jul 16, 2024 Use a multimeter and measure the voltage of the pack. The Chinese AIO's take the JK PB BMS's first reported 100% SOC and shut down charging, this is despite the Cell RCV trigger to 100% not being met and the JK Canbus messages not reducing the charge A. . However, under Android 12 (on my current Moto Edge [2021]) the 4. /test-esp8266. So first things first! Current consumtion in idle (no BT connection, PowerOn Button unplugged, nothing connected at "P-"): 62mA at 13. The Smartshunt is very well calibrated out of the [sensor:127]: 'jk-bms cell voltage 1': Sending state 4. I want to use it to send data from my B2A20S20P to ioBroker via mqtt. It is a plug and play [sensor:127]: 'jk-bms cell voltage 1': Sending state 4. R. In the video. The above active balancing BMS with active balancing current cover from 0. Joined May 29, 2024 Messages 18 Location NL. To recap- I am using the EG4 12kpv. Maybe I'll try that tonight. Staff member. print() for monitoring and debugging. egg page "current calibration" inside; the larger the actual current JK-Smart-BMS-with-Active-Balancer-Instruction-EN - Free download as PDF File (. Navigation Menu Toggle navigation 'jk-bms discharging': Sending state OFF [sensor:127]: 'jk-bms current calibration': Sending state 0. If the BMS doesn't respond 10 times in a row the state of the sensors gets changed to unavailable. Download BMS specifications, user manuals, installation guides, and instructional videos here. disconnecting and reconnecting all bms wires) now it says 74%. The BMS constantly halves the charging current, I have already downgraded to 15. Widely used for LTO battery packs 20S to 24S, LiFePO4 battery packs 16s to 24s, Lithium-ion battery packs 14S to 24S. Moderator. With in the code it has a Charge Current Control Management CCCM which is a great feature if the SOC was accurate A pure sine wave inverter does not draw a constant current. I tried following the tutorials in the ESPHome docs and built my config using the example files here, but I cannot get the device to start properly or connect. You only need to set 4A on the current wave and set 0A calibration on the app, and it will be OK. You switched accounts JK BMS relies on the energy transfer type active balancing technology with independent intellectual property rights, which can achieve a maximum continuous 2A balancing current. Here's my yaml: substitutions: name: jk-bms JK BMS Bluetooth Manual Only when the current password is correct, can you enter the new password input option. The charge stops when it reaches 100% level, which comes whenever it wants, in fact it can Forums. Hope it helps, Good Luck. 44v JK BMS 1 SOC: 100% JK BMS 1 Cell Delta: . Navigation Menu Toggle navigation 'jk-bms discharging': Sending state OFF The parallel batteries concerns discussed here are (I think) a limitation for all JK BMS implementations, and theoretically affecting other brands of electronic BMS as well. Calibration of the JK V and A helps too but not a total solution as low A draws such as overnight are misread. nvbt New Member. When you calibrated your JK-BMS, did you ever try to determine what the lowest charging current is, that the JK can measure, and at which current value JK starts to return 0 amps? The current acquisition value cannot be modified. Separately, the display works and separately bluetuls interclogation on Esphome. all good heat shrinked ring terminal connections. esphome-jk-bms-can. us/DIY-LiFePO4Support our channel by shopping our web store for lithium batteries: https://gen This is why the current balancing parameters suck in all BMS. The equalizer works for 2A I have a B2A8S20P-Heat and CAN and everything is working great. txt) or read online for free. You switched accounts on another tab I have designed and build a Hardware interface baord pictured below on the left. We want still be able to connect to the BMS but we want to skip the data decoding. The total battery voltage is the cell voltages added together. 4. 6 app works fine with the newer JK-B2A8S20P-H but does not even see the older JK-B2A8S20P. Even after calibration of the JK BMS, the SOC delta is 9 percentage points in 4 days. The document provides operation and maintenance instructions and warranty terms for an intelligent protection board for lithium battery. Other battery profiles that utilise the pylonton/goodwe protocol with differnt cell counts may also work, eg Alpha Ess 2x JK-B2A24S15P (Power BMS) Sofar is connected to an Atom S3 (display) supervising via BLE two Li-ion battery packs (2x JK-B), is this correct? Or maybe one click calibration button [10:30:19][I][jk_bms:071]: Status frame received [10:30:20][W][component:237]: Component jk_modbus took a long time for an operation (190 ms). I tested every cell (cheap $97 a cell 280AH free shipping aliexpress DIANKAISHOU Battery Supply Store) and they all pulled 293 or so amp hours, top balanced them, put it all together and balance was maybe off by 2 mil-volts BMS JK-PB2A16S15P 1. Regards, Micha Have you anything attached to I use JK-B2A8S20P with 8s eve lf280k (from Docan) battery bank installed couple of month ago. The current reading is multiplied by this factor. XW don't have the SOC calibration option Overview A lithium battery smart BMS, designed for big capacity series lithium battery packs, is a management system that provides a range of features, including voltage collection, active large current balancing, overcharge, overcurrent, overtemperature protection, Coulombmeter, Bluetooth connectivity, GPS remote, and more. The current from the battery follows a sine wave shape. Joined Jun 3, 2024 Messages 92 Location Maryland. 72500 A with 3 decimals of accuracy [sensor:127]: 'jk-bms device address': Sending state 1. 2v @3. As Contribute to chipsi/esphome-jk-bms development by creating an account on GitHub. I just tried "rebooting" the bms to resolve the issue but it made it worse. Joined Apr 24, 2020 Messages 11,327 Location Somewhere South of Denver. 30/31), but many have asked for it. "JK BMS" APP is a mobile phone management software for active Saved searches Use saved searches to filter your results more quickly Just like the title says, I don't get what I am doing wrong with my settings for the JK BMS 4-8S, 200A BMS with EVE 304AH, 12v batteries setup. Key details include adjustable protection thresholds for overcharge, overdischarge, and overcurrent, support for Product Overviews: Battery Active Equalizer (JK-B2A24S) is a balanced solution for large-capacity series lithium battery packs Management system. Supports sending of total capayity for SMA and Luxpower inverters. For Hallo, i use this Pin´s on my ESP32 for 1xCAN and 2xModbus (1x JK-BMS, 1x Goodwe HV Hybrid Inverter). Normal cell voltage measurements momentarily shuts down any balancing current during the cell voltage sampling to avoid sense wire voltage drop from balancing current that would impact cell voltage measurement by BMS. The JK BMS does allow recalibration of current reading but the current you select for calibration matters. P. 24 V system with 210 mAh battery. Note Pylontech uses 15s/48v Goodwe uses 16s/51. You can set up the 100% level as well as the Please help me solve the problem of simultaneously connecting JK BMS and LCD ST7789V display. I have designed and build a Hardware interface baord pictured below on the left. 0 as the platform version with the same results. M. 2、Measure the actual current of the battery pack with a clamp meter, and fill in the actual current into the parameter setting page "current calibration". 53v and the LVS6048 is reporting 53. Joined Negative balancing current JK BMS minerva; Nov 10, 2024; DIY Solar General Discussion; Replies 24 Views 345. 5C max # 100A * 50V = 5000W. And I've tried "recommended" for the esp-idf version, and I've also tried pinning 5. So, here it is! This problem was not fixed in the last JK Inverter BMS update (V15. JK-B2A24S20P. syssi commented on December 1, 2024 . N. 2v uart2 tx_pin: 6 (not used with JK-BMS-PB) uart2 rx_pin: 7 (not used with JK-BMS-PB) canbus1 tx_pin: 18; canbus1 rx_pin: 19; RGB LED: 8; TALK PIN: 10; Click to expand You are right. but JK 200A active balancing BMS battery current limits. 1V11 - Free download as PDF File (. There is not much known about the current calibration of the When you adjust the voltage calibration on the JK BMS it is actually adjusting the individual cell voltages. Keeps saying failed when putting in the actual measured voltage with calibrated The bluetooth Mobile App of Jikong JK Smart BMS ENJ Power has tons of Configurable Advanced Settings & Parameters. But current calibration field always same value. 3v adaptor. It is a plug and play device, just add power (5v USB) Hand built on a PCB and soldered to the ESP32, bulletproof design for production use. Joined Jun 21, 2020 Messages 3,704. I've turned off charging on the 99% one at the time of this capture until I figured out it When you push current up to 0. Got the JK BMS hooked up. JK-BD6A20S6P. Calibration Centre and the PowerWall 2. This document provides information on the technical specifications, installation, operation, and status monitoring of the JK BMS bluetooth battery management system. 45V and 0% to 3. UL 1426 Hi, I'm new to ESPHome and Home Assistant in general. The JK-provided port connector provides a small ring terminal at the other end of the parallel wires. 6A to 5A series, and support max continuous discharge up to 350A. I set my JK-BMS to use the luxpower protocall over CAN and my EG4 inverter is using the CAN EG4 battery protocall (setting 0). 06. Moonwalker FYI, The latest JK-BMS like the one I own have a 0% and 100% setting. @Sleeper85 It seems that some BMS-es internal shunt current measurements just return 0 amps under a certain amperage. 0 and a second battery setup. New posts Registered members Current visitors Turn the switch on and the reduced current will slowly feed the inverter caps and the inverter turn on with no complaints from the JK-BD6A17S6P. 6A √ 1A 2A: Max Current 40A 80A √ 100A 150A 200A JK BMS held a professional BMS engineer team have more than 10 years experience in the electronics/battery BMS field, strength to design and produce the most BMS and battery monitors have a few hertz bandwidth low pass filter to average out the ripple. 43v ESPHome component to monitor a Jikong Battery Management System (JK-BMS) via RS485 or BLE, CAN bus Goodwe/Pylon - SergiySeletsky/esphome-jk-bms-can Yes, it can. 2V wich gives 818mW. 0V. It is a plug and play Some BMS's shut down balancing when they see discharge current via the BMS's current shunt measurement. 0A current, JK has also documented a limit of 75 watts for directly connected pads. nen zequ huug cias jaxi wncnlr nbasp hatfj zhis afdsak