Description
🔋 4S 12V 100A DALY BMS (Lithium Battery Management System)
The 4S 12V 100A DALY BMS is a high-performance battery protection system specially designed for 12V Lithium (LiFePO4) battery packs. It ensures safe charging and discharging while enhancing battery life and performance.
This BMS supports 100A continuous charging and 100A continuous discharging current, making it ideal for high-load applications such as inverters, solar systems, electric vehicles, and backup power solutions.
⚡ Key Features
- ✅ Supports 4 Series (4S) LiFePO4 Battery Pack (12V)
- ✅ 100A Charging Current
- ✅ 100A Discharge Current
- ✅ Advanced Battery Protection System
- ✅ High reliability with stable performance
- ✅ Compact design with efficient heat dissipation
🔧 Applications
- 🔋 Solar Energy Storage Systems
- 🔌 Inverter Battery Packs
- 🚗 Electric Vehicles (E-Rickshaw, E-Bike)
- 🔦 Backup Power Systems
🔧 Technical Specifications – 4S 12V 100A DALY BMS
| Parameter | Details |
|---|---|
| Brand | DALY |
| Model | 4S 12V 100A BMS |
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| Series Support | 4S (4 Cells in Series) |
| Nominal Voltage | 12.8V |
| Full Charge Voltage | 14.6V |
| Discharge Cut-off Voltage | ~10.0V |
| Continuous Charge Current | 100A |
| Continuous Discharge Current | 100A |
| Peak Current | 250A – 300A (short duration) |
| Balance Type | Passive Balancing |
| Balance Current | 30mA – 60mA |
| Balance Start Voltage | ~3.4V ±0.05V |
| Over Charge Protection Voltage | 3.65V ±0.05V per cell |
| Over Discharge Protection Voltage | 2.5V ±0.1V per cell |
| Over Current Protection | Yes |
| Short Circuit Protection | Yes |
| Temperature Protection | Yes (NTC Sensor) |
| Working Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Power Consumption | ≤30µA (standby) |
| Communication (Optional) | NO |
| Port Type | Common Port (Charge & Discharge same port) |
| Waterproof Level | Available (Epoxy/Waterproof models) |
⚙️ Additional Technical Details
- Uses high-quality MOSFETs for stable high-current handling
- Supports cell voltage monitoring & balancing for longer battery life
- Designed for low heat generation & high efficiency
- Compact PCB design for easy installation
- Compatible with solar systems, inverter battery, EV & DIY battery packs
⚡ Electrical Performance
- Stable output under high load (100A continuous)
- Accurate voltage detection per cell
- Fast response protection circuit (milliseconds level)
- Low internal resistance design
🔌 Wiring Information
- B- → Battery negative
- P- → Load & Charger negative
- B1–B4 → Cell connections (series monitoring)
- Common Port Design simplifies wiring
🔒 Protection Functions
- 🔹 Over Charge Protection
- 🔹 Over Discharge Protection
- 🔹 Over Current Protection
- 🔹 Short Circuit Protection
- 🔹 Temperature Protection
- 🔹 Cell Balancing Function
💡 Why Choose DALY BMS?
- Trusted brand with proven quality
- Ensures longer battery life
- Provides complete safety protection
- Easy installation and reliable operation
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