Description
The DALY BMS LFP LiFePO4 20S 60V 30A Battery Management System is designed to protect and manage 20S LiFePO4 battery packs made from 20 cells connected in series. With a 30A continuous discharge current, cell balancing, and multiple battery protection functions, this BMS is suitable for a variety of 60V LiFePO4 battery applications.
This is a fixed 20S configuration, meaning it is designed specifically for 20 cells connected in series and cannot be used for other series configurations. It is strictly designed for LiFePO4/LFP batteries and is not compatible with standard Li-ion, Li-Metal, or LTO battery packs.
Key Features
- Designed specifically for 20S 60V LiFePO4 battery packs
- 30A continuous discharge current
- Peak current: 90A ±15A
- Built-in cell balancing function
- Balance current: 30 ±5mA
- Includes 21-wire balance/sense cable
- Temperature protection
- Overcharge protection
- Over-discharge protection
- Overcurrent protection
- Short-circuit protection
- Low-power sleep mode
- Supports cylindrical and prismatic LiFePO4 cells
- Compatible with cell formats including 18650, 21700, and 36500
- Certifications: ISO, FCC, RoHS, PSE, and CE
Protection Functions
Overcharge Protection: Helps protect individual cells when their voltage rises above the specified protection level.
Over-Discharge Protection: Protects the battery pack when cell voltage drops below the specified threshold.
Overcurrent Protection: Helps protect the battery pack from excessive current conditions.
Short-Circuit Protection: The BMS can shut down the battery when an external short circuit is detected.
Temperature Protection: Provides protection against high and low temperature conditions during battery operation.
Applications
This 20S 60V 30A LiFePO4 BMS is suitable for:
- Electric bikes and e-bikes
- Solar energy storage systems
- RV and camping power systems
- Electric skateboards
- Electric boats
- Power tools
- Lawn and garden equipment
- Household energy storage systems
- DIY LiFePO4 battery packs
- Other 60V LiFePO4 battery applications
Battery Compatibility
- Battery Chemistry: LiFePO4 / LFP only
- Configuration: 20S fixed
- Nominal Pack Voltage: 60V
- Cell Voltage: 3.2V nominal per cell
- Number of Cells: 20 cells in series
- Not compatible with: Li-ion, Li-Metal, or LTO batteries
Specifications
| Specification | Details |
|---|---|
| Battery Type | LiFePO4 / LFP |
| Battery Configuration | 20S |
| Nominal Battery Voltage | 60V |
| Continuous Discharge Current | 30A |
| Peak Current | 90A ±15A |
| Main Circuit Resistance | ≤20mΩ |
| Charge Voltage | S × 3.75V |
| Charge Current | 15A |
| Overcharge Detection Voltage | 3.75 ±0.05V |
| Overcharge Protection Delay | 1 sec |
| Overcharge Release Voltage | 3.65 ±0.05V |
| Balance Detection Voltage | 3.5V |
| Balance Release Voltage | 3.5V |
| Balance Current | 30 ±5mA |
| Over-Discharge Detection Voltage | 2.7 ±0.1V |
| Over-Discharge Detection Delay | 1 sec |
| Over-Discharge Release Voltage | 2.7 ±0.1V |
| Overcurrent Detection Delay | 1ms |
| Overcurrent Detection Condition | Off load |
| Short-Circuit Detection Delay | 250µs |
| Short-Circuit Protection Condition | Off load |
| Temperature Protection | Charge: below -5°C or above 50°C; Discharge: below 70°C |
| Working Current | 100µA |
| Sleeping Current | 20µA |
| Working Temperature | -20°C to 70°C |
| Sleeping Temperature | -40°C to 80°C |
| Weight | 8 oz |
| Dimensions | 2 × 3 × 0.2 inches |
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