Description
The DALY BMS LFP LiFePO4 8S 24V 50A Battery Management System is a dedicated battery protection board designed for 8S LiFePO4 (Lithium Iron Phosphate) battery packs. It is suitable for battery packs built from eight 3.2V LiFePO4 cells connected in series, providing reliable protection and cell balancing during charging and discharging.
This 24V 50A LiFePO4 BMS features a built-in balancing function, balance wire, and temperature sensor to help maintain safe and stable battery operation. It protects the battery pack against overcharging, over-discharging, overcurrent, short circuits, and excessive temperatures.
The BMS supports a continuous discharge current of 50A with a peak current capability of 150 ± 25A, making it suitable for various medium-to-high current battery applications. Its compact design can be used with different LiFePO4 cell formats, including 18650, 21700, cylindrical, and prismatic cells, provided the battery pack is configured as 8S LiFePO4.
Key Features
- 8S LiFePO4 BMS designed specifically for 24V-class battery packs.
- 50A Continuous Discharge Current for demanding applications.
- 150 ± 25A Peak Current capability.
- Cell Balancing helps maintain more consistent voltage between cells.
- 30 ± 5mA Balance Current.
- Overcharge Protection helps prevent individual cells from exceeding the safe voltage limit.
- Over-Discharge Protection helps protect cells from excessive discharge.
- Overcurrent Protection provides protection against excessive current conditions.
- Short-Circuit Protection quickly disconnects the battery during a short-circuit condition.
- Temperature Protection monitors battery temperature during charging and discharging.
- Balance Wire Included for individual cell voltage monitoring and balancing.
- Temperature Sensor Included for added battery protection.
- Compact design suitable for a variety of LiFePO4 battery pack builds.
Battery Compatibility
This BMS is designed only for 8S LiFePO4 battery packs. It is not suitable for standard Li-ion, Li-Metal, or LTO battery chemistries.
It can be used with compatible LiFePO4 cell formats such as:
- 18650 LiFePO4 cells
- 21700 LiFePO4 cells
- Cylindrical LiFePO4 cells
- Prismatic LiFePO4 cells
Protection Functions
- Overcharge Protection: Detects excessive cell voltage and stops charging to protect the battery.
- Over-Discharge Protection: Disconnects the battery when cell voltage falls below the configured protection level.
- Overcurrent Protection: Helps prevent damage caused by excessive discharge current.
- Short-Circuit Protection: Disconnects the battery when a short circuit is detected.
- Temperature Protection: Provides protection during abnormal charging, discharging, or temperature conditions.
- Cell Balancing: Helps keep individual cells at similar voltage levels for improved pack performance.
Applications
- 24V LiFePO4 battery packs
- Solar energy storage systems
- RV and camping power systems
- Electric bicycles
- Electric skateboards
- Electric boats
- Power tools
- Lawn and garden equipment
- Household energy storage systems
- DIY LiFePO4 battery packs
Specifications
| Specification | Details |
|---|---|
| Brand | DALY |
| BMS Type | LiFePO4 Battery Management System |
| Battery Chemistry | LiFePO4 |
| Series Configuration | 8S |
| Nominal Battery System | 24V |
| Continuous Discharge Current | 50A |
| Peak Current | 150 ± 25A |
| Main Circuit Resistance | ≤ 20mΩ |
| Charge Voltage | S × 3.75V |
| Charge Current | 25A |
| Overcharge Detection Voltage | 3.75 ± 0.05V |
| Overcharge Protection Delay | 1S |
| 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 Protection Delay | 1S |
| Over-Discharge Release Voltage | 2.7 ± 0.1V |
| Overcurrent Detection Delay | 1ms |
| Short-Circuit Detection Delay | 250µs |
| Working Current | 100µA |
| Sleeping Current | 20µA |
| Charging Temperature Protection | Below -5°C or above 50°C |
| Discharging Temperature Protection | Above 70°C |
| Working Temperature | -20°C to 70°C |
| Storage/Sleeping Temperature | -40°C to 80°C |
| Weight | 5.5 ounces |
| Dimensions | 2.5 × 3.1 × 0.6 inches |
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