1. Product Overview
The DALY Smart BMS is an advanced Battery Management System designed for Li-ion 17S 48V battery packs, supporting current ratings from 40A to 500A. It features comprehensive protection, smart monitoring capabilities via APP/PC software, and robust construction for various high-current applications.
Key Features:
- Waterproof and Shockproof: Patented glue injection process ensures durability.
- Smarter Monitoring: View, read, and set battery parameters via APP, PC software, or IOT Cloud Manager.
- Low Power Consumption: Optimized design for energy efficiency.
- Integrated Parallel Module: Supports safe expansion of battery packs.
- High Precision: High-end MCU chip with accurate voltage detection and rapid short-circuit protection.
- Professional High Current Response: Features a patented thick copper PCB board and upgraded MOS package for efficient current handling and lower temperature rise.
- Multiple Protections: Includes overcharge, over-discharge, overcurrent, short-circuit, temperature, and electrostatic protection.
2. Specifications
Product dimensions are width*length*thickness, with a dimensional data tolerance range of ±0.5mm.
| Attribute | Value |
|---|---|
| Brand Name | DALY |
| Type | LI-ION Battery BMS |
| Usage Scenario | Power BMS |
| Handware or Smart | SMART BMS |
| Balance Function | Passive Balanced BMS |
| Charge and Discharge Port | Common Port BMS |
| Certification | CE |
| High-concerned chemical | None |
| String Number | 17S |
| Nominal Voltage | 3.7 V |
Model-Specific Dimensions and Current Ratings:
| Series | Current (A) | Size (mm) | B-P- | Cable |
|---|---|---|---|---|
| K Series | 40A/60A/100A | 65*123*14 | 10AWG(40/60A)/7AWG(100A) 100mm | 24AWG 300-450mm |
| M Series | 150A/200A | 66*164*21 | 4AWG 150mm | 24AWG 300-450mm |
| S Series | 250A/300A/400A/500A | 65*183*108 | 4AWG*2 / 1AWG*2 200mm | 24AWG 300-450mm |
Note: If you need other specifications, please consult customer service for details.
Electrical Parameters:
3. Packing List
The standard package includes the following items:
- Smart BMS (x1)
- Manual (x1)
- B-P- Output line (Gift) (x1)
- Bluetooth module (Gift) (x1)
- Cables (x1)
- NTC (x1)
4. Installation and Wiring
Follow these three easy steps for proper installation and wiring of your DALY Smart BMS:
- Solder the sampling cables: The first cable in black in the sampling cable set is connected to the total negative terminal of the battery (B-). The second cable (red) is connected to the positive terminal of the first string of batteries. The third cable (red) is connected to the positive terminal of the second string of batteries, and so on, until all cables are connected to their respective positive terminals of each battery string.
- Check the cables: After connecting the cables, measure the voltage between two adjacent cells starting from the header to ensure there are no wrong connections or missing connections.
- Connect the output wires: Connect the B- wire of the BMS to the total negative terminal of the battery pack, and then plug the sampling cable to the BMS. After activating the BMS, ensure that the voltage (battery voltage) between B+ & B- and the voltage between P+ & P- are consistent.
Communication Functions and Accessories:
The BMS supports dual UART communication interfaces and rich expansion applications. Optional accessories like RS485, UART, CAN, Bluetooth, WiFi module, various display screens (4.3-inch touch screen, 3-inch display), square power light panel, circular battery light panel, heating module, and buzzer can be connected.
5. Operating Instructions
BMS Activation:
The BMS is automatically activated when used for the first time. If the BMS enters a dormant state, it can be activated using one of the following four methods:
- Use a key switch.
- Press buttons on the Bluetooth module or SOC indicator.
- Connect to the Mobile APP using CAN/RS485 communication or Bluetooth.
- Charge or discharge the battery.
Before activation, ensure the BMS, cables, battery, and NTC are connected correctly.
Smart Monitoring and Management:
The DALY Smart BMS offers advanced monitoring and management through its self-developed mobile application and PC software.
Mobile APP:
The 'SMART BMS' app acts as your personal lithium battery steward, providing various data at a glance. It supports iOS and Android systems, automatically switches with the system language, and allows for local remote monitoring.
PC Software:
With a communication cable (UART/RS485/CAN) connected to a PC, the upgraded version of the PC software provides extensive management rights. Users can perform hierarchical management and program upgrades for the BMS.
DALY Cloud - Lithium Battery IOT Platform:
DALY's official IOT platform enables remote and batch intelligent management of BMS units. Battery data is saved in the cloud, and multi-level sub-accounts can be opened. The BMS can be remotely upgraded through the APP + DALY Cloud.
Video 1: DALY S-Series Smart BMS promotional video highlighting features like parallel connection, smart capabilities, waterproofing, and high current resistance.
6. Maintenance
The DALY Smart BMS is designed for durability and low maintenance. Key aspects include:
- Moisture-proof, Anti-vibration, Anti-oxidation: The national patented plastic injection technology improves the protective performance of the BMS, reducing the need for frequent maintenance in challenging environments.
- Rapid Heat Dissipation: Multi-channel cooling structure with a high-speed fan ensures efficient heat dissipation, contributing to the longevity of the unit.
- Passive Balancing: The 100mA passive balancing helps extend lithium battery life by maintaining cell voltage consistency.
Regularly check connections for tightness and ensure the BMS is free from excessive dust or debris. For optimal performance, keep the firmware updated via the mobile app or PC software.
7. Troubleshooting
This section addresses common issues you might encounter with your DALY Smart BMS.
Common Issues & Solutions:
- BMS not activating: Ensure all connections (BMS, cables, battery, NTC) are correct. Try activating using a key switch, pressing buttons on the Bluetooth module/SOC indicator, connecting via APP, or charging/discharging the battery.
- Inconsistent voltage readings: Double-check all sampling cable connections to ensure they are correctly soldered to each battery string's positive terminal. Verify no cables are missing or incorrectly connected.
- Communication issues with APP/PC: Ensure the correct communication module (Bluetooth, UART, RS485, CAN) is properly connected and functioning. Verify software/app settings and permissions.
- Overcurrent/Overvoltage/Over-discharge protection triggering: Review your battery pack's specifications and the BMS settings in the app/PC software. Ensure the parameters are correctly configured for your battery type and usage. Reduce load or adjust charging parameters if necessary.
- High temperature: Ensure adequate ventilation around the BMS. Check for any obstructions to the cooling fan (if present). Verify that the current draw is within the BMS's rated capacity.
If you encounter persistent issues not covered here, please refer to the 'Warranty & Support' section for assistance.
8. User Tips
Based on user experiences and common inquiries, here are some tips for getting the most out of your DALY Smart BMS:
- Verify Wiring Carefully: Many issues stem from incorrect wiring. Always double-check your connections, especially the balance leads, before powering on.
- Use the App for Monitoring: The mobile app provides real-time data and allows for easy parameter adjustments. Familiarize yourself with its features for better battery management.
- Consider Communication Modules: For advanced monitoring or integration, consider purchasing the appropriate UART, RS485, or CAN communication modules.
- Parallel Connection: The BMS supports parallel connection for increased capacity. Ensure proper setup to avoid large current impacts.
- Temperature Monitoring: Pay attention to temperature readings, especially during high charge/discharge cycles, to ensure optimal performance and safety.
9. Warranty & Support
Warranty Information:
From the date of purchase, the product is guaranteed free of charge within one year under normal use. Any round-trip freight costs for warranty service need to be borne by the user.
Customer Support:
For any questions, technical assistance, or warranty claims, please contact DALY customer service. You can find contact information on the official DALY website or through your point of purchase.
