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The DALY Li-ion 20S 72V 50A BMS is a high-performance battery management system designed to protect and manage lithium-ion battery packs configured in a 20-series (20S) arrangement, providing a nominal voltage of 72V. It ensures stable and safe battery operation by delivering comprehensive protection against overcharge, over-discharge, overcurrent, short circuit, and overheating.
Built with a waterproof, dustproof, and vibration-resistant housing, this BMS is well-suited for high-voltage applications such as electric bikes, electric scooters, solar energy storage systems, backup power units, robotics, and custom-built battery packs. It features intelligent passive balancing and precise voltage monitoring to enhance battery efficiency, extend lifespan, and maintain consistent performance across all cells.
1 × DALY Li-ion 20S 72V 50A Waterproof Battery Management System
| Battery Type | Li-ion (Lithium-ion) |
|---|---|
| Series | 20S (20 cells in series) |
| Nominal Voltage | 72V |
| Continuous Discharge Current | 50A |
| Charging Current | 25A |
| Overcharge Detection Voltage | 4.25V ± 0.05V (per cell) |
| Over-discharge Voltage | 2.8V ± 0.05V (per cell) |
| Overcurrent Detection | 55A |
| Balance Function | Yes (Passive Balancing) |
| Balance Voltage | 4.18V (per cell) |
| Short Circuit Protection | Yes (with automatic recovery) |
| Operating Temperature | -15°C to 60°C |
| Waterproof Rating | IP65 |
| Dimensions (Approx.) | 125mm × 65mm × 13mm |
| Weight | 210g |
| IC Chip | Integrated Protection Circuit |
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