Aoleaby BD6A20S10P
Aoleaby JK Smart BMS BD6A20S10P Battery Management System User Manual
Model: BD6A20S10P
1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Aoleaby JK Smart BMS BD6A20S10P Battery Management System. The JK Smart BMS is designed to protect and optimize the performance of Li-Ion, LiFePO4, and LTO battery packs, ensuring safety and extending battery life through active balancing and comprehensive protection features.
Please read this manual thoroughly before using the product to ensure correct operation and to prevent damage.
2. Package Contents
Upon opening the package, please verify that all the following components are included:
- JK Smart BMS unit (with built-in Bluetooth)
- Temperature Sensor (40cm)
- Balance Wires (75cm)
- Active Switch (15cm)
- Heating Cable (Only for BMS models with heat function)

3. Key Features
- JK Own Development APP: Monitor battery status and configure BMS settings via Bluetooth communication on your smartphone.
- JK Active Balance: Actively balances voltage differences between battery cells, improving battery usage efficiency up to 99% and extending battery life.
- Comprehensive Protection: Protects against over-charge, over-discharge, over-current, short circuit, and includes low-temperature charging cutoff.
- Wide Compatibility: Support 12V/4S, 24V/8S, 48V/16S, 72V/24S LiFePO4 battery systems with 100A-350A max current and 0.6-2A active balance current.

4. Specifications
| Feature | Specification |
|---|---|
| Model | BD6A20S10P |
| Battery Cell Composition | Lithium Ion, LiFePO4, LTO |
| Supported Cell Count | 8S-20S (e.g., 12V/4S, 24V/8S, 48V/16S, 72V/24S) |
| Max Continuous Current | 100A (up to 350A peak for some models) |
| Active Balance Current | 0.6A - 2A (model dependent) |
| Communication | Bluetooth (BT), RS485 (optional CANBUS chip) |
| Protection Functions | Over-charge, Over-discharge, Over-current, Short Circuit, Low Temperature Charging Cutoff |
| Item Weight | 2.2 pounds |
| Package Dimensions | 1.18 x 0.79 x 0.39 inches |

5. Setup and Installation
Safety First: Before beginning installation, ensure your battery pack is disconnected from any power sources and that all individual cells are at a safe voltage level. Wear appropriate personal protective equipment.
5.1. Wiring Diagram Overview
The JK Smart BMS requires careful connection of power terminals, balance wires, and sensors. Refer to the specific wiring diagram provided with your BMS model for precise connections. General steps are outlined below.

5.2. Connection Steps
- Connect B- Terminal: Connect the main negative terminal of your battery pack to the B- terminal on the BMS.
- Connect Balance Wires: Carefully connect the balance wires from each cell of your battery pack to the corresponding ports on the BMS. Ensure the correct order (B-, B1, B2, ..., Bmax) as per the BMS's pinout. Incorrect connection can damage the BMS or battery.
- Connect P- Terminal: Connect the load/charger negative terminal to the P- terminal on the BMS. The main positive terminal of the battery pack connects directly to the load/charger positive.
- Connect Temperature Sensor: Plug the temperature sensor into its designated port on the BMS and place the sensor securely on a battery cell or within the battery pack for accurate temperature monitoring.
- Connect Active Switch: Connect the active switch to its port. This switch is typically used to activate/deactivate the BMS or for specific functions.
- Heating Cable (If applicable): If your BMS has a heat function, connect the green 5PIN cable of the heating cable to the heating pad. The black and red cables of the heating cable should be linked to a smart charger. The smart charger, after linking with the BMS, will use the BMS's temperature data to automatically monitor and control the battery's charging status, including heating.


5.3. App Installation and Bluetooth Connection
Download the official JK BMS app from your smartphone's app store (iOS/Android). Once installed, enable Bluetooth on your phone and open the app. The app should detect your JK Smart BMS. Follow the in-app instructions to pair and connect. This will allow you to monitor battery parameters and adjust settings.
6. Operation
6.1. Monitoring Battery Status
Use the JK BMS app to monitor real-time battery parameters, including:
- Total voltage and individual cell voltages
- Charge/discharge current
- Battery temperature
- State of Charge (SOC)
- Balancing status
- Protection status (e.g., over-voltage, under-voltage alarms)
6.2. Active Balancing
The JK Smart BMS features active balancing, which automatically works to equalize the voltage of individual cells within the battery pack. This process occurs continuously and helps maintain the health and capacity of the entire pack. You can observe the balancing activity through the app.
6.3. BMS Settings
The app allows you to configure various BMS parameters, such as:
- Over-voltage and under-voltage protection thresholds
- Over-current protection limits
- Temperature protection limits
- Charging and discharging parameters
Exercise caution when adjusting settings. Refer to your battery cell manufacturer's specifications for recommended values. Incorrect settings can lead to battery damage or safety hazards.
7. Maintenance
7.1. Regular Checks
- Periodically check all wiring connections for tightness and corrosion.
- Monitor battery cell voltages via the app to ensure they remain balanced.
- Keep the BMS unit clean and free from dust and moisture.
7.2. Software Updates
Check the JK BMS app regularly for firmware updates for your BMS. Updates can improve performance, add features, or address bugs. Follow the in-app instructions for any update procedures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| BMS not detected by app | Bluetooth off, BMS not powered, app issue | Ensure Bluetooth is enabled, BMS is powered on, restart app/phone. Check BMS wiring. |
| Cells out of balance | Initial imbalance, faulty cell, balancing current too low | Allow BMS more time to balance. Check individual cell health. Ensure balance wires are correctly connected. |
| BMS cuts off power unexpectedly | Over-voltage, under-voltage, over-current, or temperature protection triggered | Check app for protection alarms. Verify battery voltage, current draw, and temperature. Adjust BMS settings if necessary (with caution). |
| Heating function not working | Incorrect wiring, no heat function model, smart charger not linked | Verify heating cable connections (green 5PIN to pad, red/black to smart charger). Ensure your BMS model supports heating. Confirm smart charger is linked to BMS. |
If problems persist, contact customer support for further assistance.
9. Warranty and Support
9.1. Warranty Information
Aoleaby products are manufactured with high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Aoleaby website. Typically, a standard manufacturer's warranty covers defects in materials and workmanship under normal use.
9.2. Customer Support
For technical assistance, troubleshooting, or warranty claims, please contact Aoleaby customer support through the following channels:
- Email: support@aoleaby.com (Example email, please refer to actual product documentation for correct contact)
- Website: www.aoleaby.com/support (Example website, please refer to actual product documentation for correct contact)
When contacting support, please have your product model (BD6A20S10P) and purchase information ready.
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