Description
🔧 Technical Specifications – 4S 12V 20A DALY BMS
| Parameter | Details |
|---|---|
| Brand | DALY |
| Model | 4S 12V 20A 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 | ~8.0V – 10.0V |
| Continuous Charge Current | 20A |
| Continuous Discharge Current | 20A |
| Peak Current | 40A – 60A (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 |
| Standby Power Consumption | ≤30µA |
| Port Type | Common Port (Charge & Discharge Same Port) |
⚙️ Additional Details
- Designed for low to medium load applications
- Stable and efficient performance for small battery packs
- Supports cell balancing to increase battery life
- Compact size, easy installation
- Low heat generation
🔌 Applications
- 🔋 Small Lithium Battery Packs
- 🔦 LED Backup Systems
- 🛵 E-Bike / Small EV
- ☀️ Small Solar Storage Systems
- 🔌 DIY Battery Projects
🔧 Wiring Information
- B- → Battery Negative
- P- → Load & Charger Negative
- B1–B4 → Cell Monitoring Wires
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