1. Producte acabatview
The Daly Smart Active Balance BMS (Battery Management System) is designed for advanced battery pack management, offering robust protection and efficient balancing for various battery chemistries. It supports a wide range of battery strings and continuous currents, featuring multiple communication options for comprehensive monitoring and control.

Figure 1: Smart Active Balance BMS with highlighted features.
Característiques principals:
- Compatibilitat intel·ligent: Supports 4-8S, 8-17S, and 8-24S battery strings.
- Alta capacitat de corrent: Available in 250A to 500A continuous current versions.
- Active Balance: Continuous balancing current of 1A for optimal cell health.
- Suport de tipus de bateria: Compatible with LiFePO4, Li-ion, and LTO batteries.
- Integrated Communication: Built-in Bluetooth for APP control (available in 7 languages), WiFi, PC Host, and IoT Cloud platform support.
- Protecció integral: Includes overcharge, over-discharge, overcurrent, short circuit, and temperature protection, along with pre-charge, disconnection, all-in, and parallel protection features.
- Dissipació de calor eficient: Features a multi-channel cooling structure, high-speed fan, and aluminum alloy heat sink.
2. Llista d'embalatge
Please verify the contents of your package upon receipt. The standard package includes the following items:

Figure 2: Standard Packing List for the Smart Active Balance BMS.
- Smart Active Balance BMS (1 pc)
- P- & B- Cable (2 pcs, 10cm)
- Cargols M6 (2 unitats)
- Sampling Cable (1 pc, 45cm, upgradeable to 80cm)
- B+ Cable (1 pc, 45cm, upgradeable to 80cm)
- NTC Cable (1 pc, 25cm, upgradeable to 80cm)
- Manual d'usuari (1 pc)
- Packaging Box (1 pc)
- WiFi Module (1 pc, for WiFi BMS version only)
3. Configuració i instal·lació
Careful installation is crucial for the safe and proper operation of your BMS. Please follow these instructions diligently.
Esquemes de cablejat:
Refer to the appropriate wiring diagram for your battery string configuration. Ensure all connections are secure and correctly polarized.

Figure 3: 4-8 Strings BMS Wiring Diagram. Connect B+ (total positive electrode) and B- (total negative pole) as shown, along with individual cell balance wires.

Figure 4: 8-17 Strings BMS Wiring Diagram. Follow the connection sequence for balance wires from 1+ to 17+.

Figure 5: 8-24 Strings BMS Wiring Diagram. Connect balance wires from 1+ to 24+.
General Wiring Precautions:
- Always connect the positive (B+) and negative (B-) terminals of the BMS to the battery pack first.
- Connect the wires in strict accordance with the diagram, ensuring B- to the negative terminal of the load or charger.
- When soldering wires, ensure they are soldered in the correct order before plugging into the BMS.
- El sampling ribbon cable must be connected correctly. If the wiring sequence is reversed, it will damage the BMS.
- For parallel connection of lithium battery packs, ensure the battery pack voltage is the same. Each group of battery packs should have a total pressure difference of <1V to prevent parallel connection issues.
- For parallel charging lithium battery packs, manually disconnect the discharging MOS in the Bluetooth APP control center interface and then parallel charge.
Activating the BMS:
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:

Figure 6: Methods to activate the BMS.
- Use a key switch (if installed).
- Press buttons on the WiFi module or SOC indicator.
- Connect to the Mobile APP via CAN/RS485 communication or Bluetooth.
- Charge or discharge the battery.
Before activation, ensure the BMS, cables, battery, and NTC are all correctly connected.
4. Instruccions de funcionament
The Daly Smart Active Balance BMS offers multiple ways to monitor and control your battery system.
Control d'aplicacions mòbils:
The self-developed "Balance BMS" APP allows you to monitor battery data at any time. It is available on iOS and Google Play stores and supports 7 languages (Russian, Norwegian, German, French, Chinese, English, Spanish).
- Cerca "Balance BMS" in your device's app store.
- Baixeu i instal·leu l'aplicació.
- The Smart Active Balance BMS has integrated Bluetooth and will connect to the APP automatically once installed and the BMS is active.

Figure 7: Balance BMS Mobile APP Interface for monitoring and parameter settings.
PC Host Communication:
Connect the BMS to a PC host via UART, RS485, or CAN communication wires to review and change multiple protection values and upgrade firmware.
- Connect to the host through a communication wire (UART/RS485/CAN).
- Review and change protection values including overcharge, over-discharge, over-current, temperature protection, and balancing current.
- Set up Key button, Heating Module, and Buzzer functions.
- Upgrade the BMS software (SW).
- BMS real-time data is stored locally.
- Support Inverter Protocol choice.

Figure 8: PC Host Communication setup for advanced control.
Plataforma IoT Cloud:
For remote monitoring and management, the BMS can transmit data through a WiFi module and router to a cloud server, accessible via a mobile app or cloud manager.

Figure 9: Smart BMS + WiFi Module for IoT Cloud remote monitoring.
5. Manteniment i cura
To ensure the longevity and optimal performance of your Daly Smart Active Balance BMS, adhere to the following maintenance guidelines:
- Temperatura de funcionament: The BMS is designed to operate within a temperature range of -40℃ to 85℃. Avoid exposing the unit to temperatures outside this range.
- Protecció del medi ambient: Ensure the BMS is installed in a waterproof, moisture-proof, and insulated environment.
- Resistència d'aïllament: Maintain battery total positive and negative shell insulation resistance greater than 10MΩ.
- Integritat del cable: Ensure all BMS collection harness, B- harness, and P- harness are fixed firmly to prevent vibration and other environmental factors that could affect the reliability of the connection.
Gestió tèrmica:
The BMS features an advanced thermal design to manage temperature rise effectively.

Figure 10: Temperature Rise Comparison. The 100Balance BMS exhibits a slower temperature rise compared to ordinary BMS units.

Figure 11: Advanced Thermal Design Process, highlighting low internal resistance components and excellent over-current performance.
6. Solució De Problemes
Aquesta secció aborda preguntes freqüents i possibles problemes que podeu trobar.
Preguntes freqüents (FAQ):
- Q: What if I am unsure about the installation process?
- A: If you are not confident with the installation steps, especially wiring, it is highly recommended to seek assistance from a qualified professional to ensure correct and safe setup.
- Q: Is this BMS compatible with Growatt 5000 inverters?
- A: The BMS supports various communication protocols including UART, RS485, and CAN. For specific inverter compatibility (e.g., Growatt 5000), please refer to the inverter's documentation or contact technical support to confirm protocol matching and integration requirements.
Consells per a usuaris:
- Always double-check all wiring connections before powering on the system to prevent damage.
- Utilize the mobile app for real-time monitoring of battery parameters and to adjust settings as needed.
- Keep the firmware updated to ensure optimal performance and access to the latest features.
7. Especificacions
Detailed technical specifications for the Daly Smart Active Balance BMS.
Product Dimensions and Current Ratings:

Figure 12: Product Specification Table. Data tolerance range ±0.5mm.
Paràmetres elèctrics:

Figure 13: Product Parameters. Note: NTC-1 is standard, NTC-2 needs to be customized.
| Atribut | Valor |
|---|---|
| Nom de marca | DALY |
| Número de model | 250A -500A BMS |
| Tipus d'accessori | Accessoris de bateries |
| Origen | Xina continental |
| Certificació | CE, RoHS |
| Comunicació a distància | IoT cloud platform |
| Comunicació 2 | Built in Bluetooth/RS485/CAN |
| Comunicació 4 | Built in 1A active balance |
| Comunicació 5 | Supporting parallel batteries |
| Carregador inclòs | N (No) |
| Bateria inclosa | No |
| Substància química molt preocupant | Cap |
8. Accessoris
The BMS supports various accessories to enhance functionality and connectivity. Please select accessories based on your specific requirements.

Figure 14: 100Balance Accessory Selection Table.

Figure 15: More Accessory Options.
Accessories include B+ cable, sampling ribbon cable, NTC, KEY cable, WiFi module, 3-inch/4.3-inch screens, USB to RS485 cable, and RJ45 Female Inverter cable.

Figure 16: RJ45 Female Inverter Cable for CAN Port connection.
9. Garantia i Suport
Informació de la garantia:
From the date of purchase, the product is guaranteed for free within one year under normal use. The user is responsible for bearing the freight cost for shipment back to us for warranty service.
User Guidelines & After-Service:
For additional information, software drivers, detailed user manuals, and APP/PC Host operation manuals, please visit the 100Balance official weblloc a www.100balancebms.com and navigate to the "service" section.
About Dongguan Balance Technology Co., Ltd.:
Dongguan Balance Technology Co., Ltd. is a high-tech company specializing in the research, development, production, and sales of battery management systems (BMS). We focus on active equalization technology, developing BMS with active balancing functions. Our goal is to provide more green renewable energy solutions.