Daly Smart Active Balance BMS Instruction Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your Daly Smart Active Balance Battery Management System (BMS). This advanced BMS is designed for various battery chemistries including LiFePO4, Li-ion, and LTO, supporting configurations from 4S to 24S and currents from 40A to 500A. It features built-in Bluetooth for app connectivity, and options for WiFi, PC host communication, and 1A active balancing.

2. Key Features

• Smart Compatible string from 4-8S, 8-17S, 8-24S. Current from 40A-500A.
• Continuous balancing current of 1A.
• Supports LiFePO4, Li-ion, and LTO battery chemistries.
• Built-in Bluetooth for mobile APP connectivity (supports 7 languages).
• Supports optional WiFi module for remote control, PC Host communication, and IoT cloud integration.
• Supports BMS Parallel connection.
• Patented design of high current thick copper PCB board for excellent conductive properties and large current handling.
• MOS package upgrade for ultra-low internal resistance, efficient overcurrent handling, and lower temperature rise.
• Rapid heat dissipation with multi-channel cooling structure, high-speed fan, and aluminum alloy heat sink.
• Comprehensive protection functions: Overcharge, Over-discharge, Overcurrent, Short circuit, Temperature protection.
• Extra protection features: Pre-charge protection, Misconnection protection, All-in protection, Parallel protection.

3. Specifications

3.1. Product Parameters

3.2. BMS Model Dimensions and Cable Specifications

Note: Product dimensions are width*length*thickness, dimensional data tolerance range: ±0.5mm. If you need other specifications, please contact a sales person.

3.3. BMS Advantages Comparison

4. Package Contents

The standard package includes the following 8 items:

• Smart active balance BMS (Built-In Bluetooth) x 1
• P- & B- cables (10cm) x 2
• M6 screws x 2
• Sampling cable (45cm) x 1
• B+ cable (45cm) x 1
• NTC cable (25cm) x 1 (with 2 NTC sensors; BMS can support 4 NTC sensors with an additional NTC cable as an accessory)
• User Manual x 1
• Package box x 1

5. Installation & Setup

5.1. Installation Video Guide

5.2. Step-by-Step Installation

1. Prepare Battery Pack: Identify the total positive (B+) and total negative (B-) terminals on your battery pack.
2. Connect B- Wire: Connect the first black cable and the blue B- wire (user-provided metal ring terminals) to the total negative terminal of the battery pack.
3. Connect Sampling Cables: Connect the rest of the sampling cables in order to each cell's positive terminal. Ensure each cable is connected to the correct cell.
4. Connect B+ Wire: Connect the B+ wire to the total positive terminal of the battery pack.
5. Caution for Fewer Series: If you are using fewer series than the maximum supported by the sampling cable, do NOT short-circuit the excess wires. Securely tape them up individually with insulation tape to prevent accidental contact.
6. Verify Sampling Cables: Before connecting to the BMS, check the sampling cables with a multimeter. Place the black probe on B0 (the first negative cell connection) and the red probe on B1, B2, B3, and so on. The multimeter should display positive voltage readings that increase step by step.
7. Important Safety Note: During testing, do not let the two multimeter probes touch each other, as this may cause a cable short circuit.
8. Connect B- to BMS: Connect the main B- wire from the battery pack to the B- terminal on the BMS.
9. Insert NTC Sensor: Insert the temperature sensor (NTC) into the designated NTC port on the BMS.
10. Plug in Sampling Cable: Carefully plug the sampling cable connector into the corresponding port on the BMS.
11. Connect B+ to BMS: Connect the main B+ wire from the battery pack to the B+ terminal on the BMS.
12. Verify BMS Operation: If the BMS's green indicator light is on, the BMS is working properly.

5.3. Wiring Diagrams

Refer to the following diagrams for specific battery series configurations:

5.3.1. 4-8S Wiring Diagram

5.3.2. 8-17S Wiring Diagram

5.3.3. 8-24S Wiring Diagram

6. Operating Instructions

6.1. BMS Activation

The BMS is automatically activated when used for the first time. If the BMS enters a dormant state, it can be activated in one of four ways:

1. Use a key switch (if installed).
2. Press buttons on the optional WiFi module or SOC indicator.
3. Connect to the Mobile APP using CAN/RS485 communication or Bluetooth.
4. Initiate charging or discharging of the battery.

6.2. Mobile APP Operation

The Smart Active Balance BMS has integrated Bluetooth functionality. To use the mobile application:

1. Search for "Balance BMS" in the iOS App Store or Google Play Store.
2. Download and install the application.
3. The BMS will automatically connect to the APP once installed and within range.

6.3. PC Host Communication

For advanced monitoring and configuration, the BMS can connect to a PC host:

• Connect to the host PC using a communication wire (UART/RS485/CAN).
• Review and change multiple protection values, including overcharge protection, over-discharge protection, over-current protection, temperature protection, and balancing current.
• Set up functions such as Key button, Heating Module, and Buzzer via the PC host software.
• Upgrade the BMS software (SW).
• Store BMS real-time data locally on the PC.
• Support for Inverter Protocol choice is available.

6.4. WIFI Wireless & Remote Monitoring

The BMS can support WiFi connection to monitor battery pack status remotely without distance limitations. A separate WiFi module is required for this functionality.

7. Maintenance

The Daly Smart BMS is designed for durability and efficient operation. To ensure optimal performance and longevity:

• Regularly check all cable connections to ensure they are secure and free from corrosion.
• Avoid exposing the BMS to extreme physical shock or moisture.
• The BMS features a low temperature rise design with rapid heat dissipation. Ensure adequate airflow around the unit, especially for higher current models, to maintain efficient cooling.

8. Troubleshooting

• BMS Green Light Not On: If the green indicator light on the BMS does not illuminate after installation, recheck all cable connections, especially the sampling cables and the main B-/B+ wires. Ensure the NTC sensor is correctly inserted.
• Incorrect Multimeter Readings: If multimeter readings are incorrect during the sampling cable verification step, carefully re-verify each connection point on the battery cells.
• Excess Wires: If using fewer series than the maximum supported, ensure any unused sampling wires are securely taped individually with insulation tape to prevent short circuits.

9. User Tips

• Parallel Connection: The Daly Smart BMS supports parallel connection of battery packs. For detailed guidance on configuring multiple BMS units in parallel (e.g., for two 8S 48V batteries), refer to the official website or contact technical support.
• Series Configuration: Always ensure that the specific BMS model you select is compatible with your battery's series configuration (e.g., 4-8S, 8-17S, 8-24S) and current requirements (e.g., 250A).
• Active Balancer: The integrated 1A active balancer is a key feature for maintaining cell voltage consistency and overall battery health. Ensure it is functioning correctly for optimal performance.

10. Warranty & Support

10.1. Warranty Information

From the date of purchase, this product is guaranteed for free within one year under normal use.

10.2. Technical Support & Resources

For further user guidelines, software drivers, detailed manuals, and product specifications, please visit the 100balance official website:

www.100balancebms.com

Navigate to the "service" and "download" sections to access:

• SW drivers
• User Manuals
• APP & PC Host operation Manuals
• Product Specifications