1. Introduction
This manual provides essential information for the safe and effective use of your DALY Smart Battery Management System (BMS) for Li-ion 48V 13S 150A battery packs. The DALY Smart BMS is designed to protect and optimize the performance of lithium batteries, extending their lifespan through advanced features like overcurrent, overcharge, overdischarge, short circuit, and temperature protection. It supports various communication protocols including Bluetooth, UART, RS485, and CAN for comprehensive battery monitoring and parameter modification.
Image 1.1: Wide Range of Applications for DALY BMS products.
2. Safety Information
Please read and understand all safety instructions before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Professional Installation Recommended: Installation of a BMS involves working with high voltage and current. It is highly recommended that installation be performed by qualified personnel.
- Disconnect Power: Always disconnect all power sources from the battery pack before performing any wiring or maintenance on the BMS.
- Correct Wiring: Ensure all balance wires and main power wires are connected correctly according to the wiring diagram. Incorrect wiring can damage the BMS and the battery pack.
- Balance Wire Connection: Disconnect the white end of the balance wires and the BMS connection port before welding the black and red balance wires to the battery pack.
- Ventilation: Ensure adequate ventilation around the BMS. Keep the red cooling surface side of the BMS uncovered to prevent overheating.
- Matching Components: Use only DALY matching balance wires (regular length 450 mm / 17.72 inch) and other accessories.
- Environmental Conditions: Avoid exposing the BMS to extreme temperatures, moisture, or corrosive environments.
3. Product Overview
The DALY Smart BMS offers robust protection and intelligent management for your lithium battery system. Its design incorporates double protection through injection patent technology and a patent shell, making it waterproof, dustproof, shockproof, and anti-static. High-quality components ensure pressure resistance, durability, and high acquisition accuracy.
Key Features:
- Comprehensive Protection: Overcurrent, Overcharge, Overdischarge, Short circuit, and Temperature protection.
- Smart Monitoring: Check battery status and modify parameters via Bluetooth app or PC software.
- Multiple Communication Interfaces: Supports BT, UART, RS485, and CAN communication.
- Durable Construction: Waterproof, dustproof, shockproof, and anti-static housing.
Packing List:
Upon unboxing, verify that all the following items are included:
- 3.7V Li-ion NCM BMS (1 unit)
- Bluetooth Module (1 unit)
- NTC Sensor (1 unit)
- Sampling Cable (1 unit)
- UART Cable (1 unit)
- Instruction Manual (1 unit)
Image 3.1: DALY Smart BMS with Bluetooth module and mobile application.
Image 3.2: Packing example showing the included components.
4. Setup and Installation
Careful installation is crucial for the proper functioning and safety of your DALY Smart BMS. Ensure you have the necessary tools before beginning the installation process.
Required Tools:
- Soldering machine (suggested temperature: 662 °F / 350 °C)
- Scissors
- Double-sided tape
- Tin wire
- Multimeter
Wiring Instructions:
- Prepare Battery Pack: Before connecting the BMS, ensure your battery pack is assembled correctly and all individual cell voltages are balanced.
- Disconnect Balance Wires: Disconnect the white end of the balance wires and the BMS connection port.
- Weld Balance Wires: Carefully weld the black and red balance wires to the corresponding points on your battery pack. Ensure correct polarity and sequence.
- Connect Balance Wires to BMS: After confirming all balance wires are correctly welded, connect the balance wire harness to the BMS connection port.
- Connect Main Power Wires: Connect the main positive (B+) and negative (B-) wires from the battery pack to the designated terminals on the BMS. Then connect the load/charger wires (P+ and P-) to the BMS.
- Install Accessories: Connect any communication accessories such as the UART, Bluetooth, RS485, or CAN modules to their respective ports on the BMS.
- Ensure Ventilation: Keep the red cooling surface side of the BMS uncovered to allow for proper heat dissipation.
Image 4.1: Detailed wiring diagram for DALY Smart BMS.
Initial Activation:
The BMS can be activated using one of two methods:
- Press the activation button located on the battery board.
- Connect a charger to the battery pack; the BMS will activate upon receiving a charge current.
The BMS comes with default protection parameters for Li-ion/LiFePO4. However, it is crucial to set the battery pack's actual capacity (AH) in the smart board application. Incorrect capacity settings will lead to inaccurate remaining power percentage readings. Other parameters can also be adjusted as needed. The initial password for the smart board APP to change parameters is 123456.
5. Operating Instructions
The DALY Smart BMS allows for real-time monitoring and parameter adjustment through its dedicated Bluetooth application or PC software.
Using the Bluetooth App / PC Software:
- Connect: Ensure your Bluetooth module or UART/RS485/CAN adapter is correctly connected to the BMS. Pair your smartphone via Bluetooth or connect your PC via the appropriate cable.
- Monitor: The application/software will display real-time battery status, including individual cell voltages, total voltage, current, temperature, and state of charge.
- Adjust Parameters: Access the settings menu to modify various protection parameters, such as overcharge/overdischarge voltage limits, current limits, and temperature thresholds. Remember the default password for parameter changes is 123456.
- Firmware Updates: Periodically check for firmware updates through the application or DALY's official website to ensure optimal performance and access to new features.
Communication Tutorials:
For detailed guidance on connecting and using the various communication interfaces, please refer to the official DALY website tutorials:
- Daly Smart BMS Touch screen Connection Tutorial
- Daly Smart BMS PC screen Connection Tutorial
- Daly Smart BMS Bluetooth APP Connection Tutorial
- Daly Smart BMS SOC light board Connection Tutorial
- Daly Smart BMS CANBUS Connection Tutorial
- Daly Smart BMS UART、RS485 Connection Tutorial
Image 5.1: DALY Smart BMS communication interfaces.
6. Maintenance
Regular maintenance helps ensure the longevity and reliable operation of your DALY Smart BMS.
- Visual Inspection: Periodically inspect the BMS and its connections for any signs of damage, corrosion, or loose wiring.
- Cleanliness: Keep the BMS clean and free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquid cleaners.
- Connection Checks: Ensure all power and communication cables are securely connected. Loose connections can lead to intermittent operation or damage.
- Software Monitoring: Regularly check the battery status via the app or PC software to identify any unusual readings or alerts.
- Temperature Management: Ensure the BMS operates within its specified temperature range. Avoid blocking the cooling fan (if present) or placing the BMS in poorly ventilated areas.
7. Troubleshooting
This section addresses common issues you might encounter with your DALY Smart BMS.
Common Issues and Solutions:
- BMS Not Activating:
- Ensure all wiring is correct and secure.
- Try pressing the activation button on the battery board.
- Connect a charger to the battery pack to initiate activation.
- Inaccurate Remaining Power Percentage:
- Verify that the battery pack's actual capacity (AH) has been correctly set in the Bluetooth app or PC software.
- Bluetooth/Communication Issues:
- Ensure the Bluetooth module or communication adapter is properly connected to the BMS.
- Check that Bluetooth is enabled on your device and the app has necessary permissions.
- Refer to the specific communication tutorials on the DALY website for detailed setup steps.
- Overcharge/Overdischarge Protection Triggered:
- Check individual cell voltages to ensure they are within safe operating limits.
- Verify that the protection parameters in the app/software are set appropriately for your battery type.
- BMS Overheating:
- Ensure the BMS has adequate ventilation and its cooling surface is not obstructed.
- Reduce the load if the current draw is consistently high.
If you encounter issues not covered here, please contact DALY customer service for assistance.
8. Specifications
The following table outlines the key specifications for the DALY Smart BMS Li-ion 13S 150A model.
Image 8.1: DALY Smart BMS 150A Dimensions.
| Feature | Specification | Unit |
|---|---|---|
| Brand | DALY | - |
| Model | Smart BMS 150A (13S 48V) | - |
| Battery Type | Li-ion (NCM) | - |
| Input Voltage (per cell) | 3.7 | Volts |
| Continuous Discharge Current | 150 | A |
| Over Discharge Detect Voltage | 2.7 ± 0.05 | V |
| Over Discharge Release Voltage | 3.0 ± 0.05 | V |
| Over Charge Detect Voltage | 4.25 ± 0.05 | V |
| Over Charge Release Voltage | 4.15 ± 0.05 | V |
| Inner Resistance | <20 | mΩ |
| Charge Current | 75 | A |
| Balance Current | 30 ± 5 | mA |
| Short Circuit Detect Delay | 200-500 | uS |
| Temperature Protection (Charge) | -40 to 65 | °C |
| Temperature Protection (Discharge) | -40 to 70 | °C |
| Working Temperature | -20 to 60 | °C |
| Storing Temperature | -40 to 85 | °C |
| Communication Interfaces | BT, UART, RS485, CAN | - |
| Dimensions (L x W x H) | 8.23 x 4.72 x 1.97 | inches |
Note: Specifications are subject to change without prior notice.
9. Warranty and Support
DALY is committed to providing high-quality products and excellent customer service.
Customer Support:
We offer 24-hour one-on-one customer service and lifetime technical support for our products. If you have any questions, require assistance with installation, or need troubleshooting help, please do not hesitate to contact us.
For support, please visit the official DALY store or contact their customer service channels:
- DALY Official Store: Visit the DALY Store on Amazon
- Technical Support: Refer to the contact information provided with your product packaging or on the official DALY website.
Warranty Information:
For specific warranty terms and conditions, please refer to the warranty card included with your product or contact DALY customer service directly. Warranty coverage typically includes defects in materials and workmanship under normal use.
