A stackable LiFePO4 battery is a type of Lithium Iron Phosphate battery (LiFePO4) that is designed to be easily stacked with other batteries to increase the overall capacity of the system.

Stackable LiFePO4 batteries are typically designed with a modular structure that allows for easy interconnection of multiple battery modules. These batteries can be connected in parallel to achieve the desired capacity for a particular application.

Here are some key features and benefits of stackable LiFePO4 batteries:

1. Modularity: Stackable LiFePO4 batteries are designed in a modular fashion, allowing users to add or remove battery modules as needed to meet specific power requirements.

2. Scalability: By stacking multiple batteries together, users can easily scale up the capacity of the battery system to suit different applications.

3. Flexibility: The modular design of stackable LiFePO4 batteries provides flexibility in configuring the battery system according to the needs of the application.

4. Easy Installation: Connection multiple stackable LiFePO4 batteries together is typically a straightforward process that can be done without specialized knowledge. 

5. Increase Capacity: Stacking LiFePO4 batteries allows for an increase in the overall capacity output of the battery system, which is useful for applications requiring higher energy storage levels.

6. High Space utilization: The stackable design can effectively utilize space and reduce the equipment footprint, making it suitable for application scenarios with limited space. 

7. Battery Management: When stacking batteries in parallel, it is important to ensure proper management of the individual cells to optimize performance and lifespan. Battery management system (BMS) are often used to monitor and control the batteries in a stack.

8. Reliability: LiFePO4 batteries are known for their long cycle life, high energy density and safety features, making them a reliable choice for various applications.

Overall, stackable LiFePO4 batteries offer a versatile and customizable energy storage solution that can be tailored to meet specific power requirements in applications such as renewable energy systems, electric vehicles, backup power systems and more.