Download the app
The app is free and published under the JIKONG BMS name in both stores. Install it from the official store listing rather than an APK mirror, so that updates and permissions come through the store.
| Requirement | Detail |
|---|---|
| Android | Android 7 or later |
| iOS | Published on the Apple App Store |
| Connection | Bluetooth, direct to the BMS |
| Cost | Free |
There is no desktop version of the mobile app. For a computer, use the JK BMS Monitor PC software over a USB to RS485 adapter instead.
What the app can do
- Read live cell voltages, pack voltage, current, temperature and state of charge
- Watch active balancing work cell by cell
- Review protection events and current BMS status
- Change protection parameters on models that support it
- Turn the balancing function on or off
Bluetooth is a standard option on many models but not on every one. Check the communication row on the product page or in the manual for your exact model before relying on app connectivity.
Connect the app to your BMS
- Install the app from the App Store or Google Play.
- Power the BMS and keep the phone within Bluetooth range of the board.
- Enable Bluetooth and, on Android, grant the location permission the system requires for Bluetooth scanning.
- Open the app and select your BMS from the device list.
- Check the Bluetooth status LED on the board: solid means connected, flashing means not connected.
If the board does not appear, confirm the BMS is powered, move the phone closer, and check that no other phone already holds the Bluetooth connection. A BMS accepts one app connection at a time.
Protection parameters the app can change
The parameter setting page exposes the pack's protection thresholds. These are the settings that decide when the BMS cuts charge or discharge, so they follow the cells and the system design, not preference.
- Battery type and default parameter set
- Single-cell overcharge protection and recovery voltage
- Charging and discharging overcurrent protection thresholds
- Charging low-temperature protection and recovery
- Charging and discharging over-temperature protection and recovery
- Short-circuit protection delay and recovery time
- Balance trigger voltage difference, in millivolts
- Balancing switch, on or off, from the BMS control page
Raising an overcharge threshold or disabling a protection can damage cells or create a fire risk. Use the default parameter set for your battery type as the starting point, and check the manual for your exact model in the downloads library before adjusting a value.