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Regarding the April 10 firmware update: On April 10, 2022, we upgraded the mobile APP and product firmware, Android and Apple mobile phone systems have been upgraded; update content: 1、Low -capacity reminder has been added to the mobile APP ; 2、Low temperature protection has been added to the...

Junctek's KG-F firmware and mobile phone app have updated: 1, first update the firmware, then update the mobile phone app, you can set the full voltage, full current and detection time in the mobile phone app extension; the above three conditions reach the set value and the capacity percentage...

Haha, he wants to accompany you all the time in the forum and help you solve problems. Make the product work better. Of course he'll abide by Will's rules.

I see that there is an upgraded version on the market, which adds a shell to the diverter, and also adds an audible alarm reminder.

Kg140f has made a quick installation video to help you quickly and correctly install this device

Compared to KG, KH has made the following upgrades: 1. Add a splitter shell for insulation protection; 2. The monitor is equipped with a built-in buzzer, and protection functions such as overvoltage, overcurrent, and overheating will alarm and remind; 3. It can display the specific time on the...

Your wiring is correct!

KH140F电量监测仪采集双向电流检测方式，充电时容量增加，放电时容量减少

Victron product is good, it has the performance of discharge current constant, according to different discharge current regulation capacity, but the price is too expensive, the name of JUNCTEK may be the Chinese pronunciation of the manufacturer’s name

The 485 communication of this product provides the communication protocol, but does not provide the host computer software http:// 68.168.132.244/KH/Manual_en_zx.pdf

If it is an earlier purchased version, The measurement module should be powered off before firmware upgrade Then short-circuit the temperature 2P pin header interface and turn on the power at the same time Open the APP, click search and connect successfully Then find after-sales service and...

我找到一张$5优惠券：AFOUUCC0PB76 https://www.aliexpress.com/item/1005005293126063.html?spm=a2g0s.12269583.0.0.6cae5fa2AHhDhj

Please brush the firmware first, open the mobile APP - After Sales (8610) - Firmware Update (526), and complete the firmware upgrade before exiting the mobile APP; The new firmware has increased the default protection and recovery time by 100 times, which was originally 99 seconds. After the...

Compared with VAT1200, KG140F has a great improvement in computing capacity First, the capacity is increased during charging. The full charge voltage and full charge current can be set. When these two conditions are met, the SOC will be automatically calibrated to 100%, and the remaining...

1. The 4P flat cable between the measurement module and the shunt cannot be extended, and the data cable between the display and the measurement module can be extended to 30 meters at most; 2. It can be used without temperature sensor, and other functions will not be affected except that the...

What if you need to spend an extra $20 to buy a WIFI-enabled monitor? Would you consider this option?

About this problem, I gave feedback to the technical staff of JUNCTEK. They said that they will modify a custom firmware recently, and change the protection recovery time to 0-99999 seconds, which can be adjusted. Enough charging time of the battery, and then close the discharge circuit.

The Bluetooth device of KH160F is located in the host computer, and one host computer can connect up to 2 monitors.

Maybe they think the naming methods of wonvon and goupchn are more acceptable to everyone.

The communication line is RJ9, is there anyone willing to share some experience of working with HA online?

Hello, conventional machines can only connect one display screen; If the circuit of the measurement module can be modified to connect to the display simultaneously, but only one of these two displays can set data, and the other can only display data

Very good modification

Yes, you need to use the APP when the mobile phone is connected by bluetooth It is recommended to use their communication protocol for communication http:// 68.168.132.244/KH/Manual_en_zx.pdf

https://it.aliexpress.com/item/1005005293126063.html?spm=a2g0s.12269583.0.0.5272e41aHAFlP2&gatewayAdapt=glo2ita $5 promo code ：GQHKNHT2W44D

The housing of the KH140F diverter can be removed Disconnection of the display does not affect data transmission.

JUNCTEK has an RJ9 port.

GOOD JOB

https://diysolarforum.com/threads/junctek-battery-monitor-vs-victron-smartshunt.34326/page-4#post-533936 I hope this article is helpful to you.

I suggest you describe your problem in detail (add pictures) and explain what data will not change. If it is a product of juntek, maybe I can help you solve it.

The newly added full power voltage and full power current functions can automatically calibrate the SOC value

It is a good idea to add a temperature sensor to each battery, which can effectively reduce the risk.

If the data is all 0, The first thing to consider is whether the firmware update was unsuccessful. At this time, you don't need to think too much, you only need to complete a firmware upgrade again;

The data can be read through 485 communication, and the communication protocol is at the bottom of the specification;

It may be caused by the culture of different countries. If you know in advance, I think they will change a more appropriate name to promote the products. However, their products are really cost-effective.

What is everyone's opinion on the Coulomb meter connected to WiFi? After connecting the Coulomb meter to WiFi, users can check the battery level anywhere in the world.

The BL series has 0-400A options, which is a good thing for those who pursue simplicity.

My KH140F uses a 500A shunt and does not sense heat when measuring 100A current.

JUNCTEKT has launched a Coulomb meter with WiFi connectivity, which allows remote monitoring of battery levels after connecting to WiFi

A KH machine can only be connected to one display. There are 2 interfaces on the measurement module. One is "RS-485 DISPLAY" for connecting to the display, and the other "RS-485 LINK" is used for connecting to 485 communication.

JUNCTEK has launched a new battery monitor with waterproof function and simpler wiring. Anyone interested can watch this video. https://www.youtube.com/watch?v=jxWY4RNY0t8

Previously, the wiring of KH had to distinguish between 2W and 3W. The new BL Coulomb meter only needs to consider connecting positive and negative electrodes, making the wiring simpler than before.

Coulomb calculation with a shunt can accurately monitor the battery power, because its working principle is to record the current * time, the charging time capacity increases, the discharging time capacity decreases, and the relative voltage measurement is accurate

It may be that the storage data space is full due to long-term non-use.

我在 Google Play 商店或 Apple Store 中搜索“KH-F”来获取该应用程序

I bought the KH140F,https://www.aliexpress.com/item/1005005293126063.html which should be an upgraded version of the KG series. It has an audible alarm function, and you can know whether it is overvoltage or undervoltage without adding a relay. The relay consumes about 0.25A of current in...

I have a junctek KH140F, I use it on my three-wheeled electric car, it is very convenient to use it to check the battery level, it may be the reason why I am often fully charged, the remaining battery percentage is accurate.

https://community.home-assistant.io/t/juntek-kg-f-series-on-ha/443741/6 希望这对你有帮助

Yes, voltage, current and temperature can be calibrated by themselves However, it has been calibrated with a high-precision voltmeter and ammeter when it first leaves the factory You don't need to calibrate yourself Unless you find a little error after many years of use, you can calibrate it...

This is RJ9 4P connector