25.6V 200Ah LiFePO4 Deep Cycle Battery for Solar Energy Storage and High-Power Applications

Product Overview

This 25.6V 200Ah lithium iron phosphate (LiFePO4) battery is a high-capacity energy storage solution designed for residential, commercial, and mobile power systems. With a total energy output of 5120Wh, it delivers strong and stable power support for applications requiring long runtime and high discharge capability.

Built using advanced lithium-ion technology and an intelligent BMS system, the battery provides enhanced safety, long cycle life, and efficient energy utilization. It is suitable for both daily cycling and backup power scenarios across a wide range of off-grid and hybrid systems.

Key Features

The battery is based on modern lithium-ion deep-cycle technology, offering significantly longer service life compared with traditional lead-acid systems. It supports deep discharge operation and maintains stable capacity output over extended use, making it suitable for long-duration energy storage applications.

Multiple charging methods are supported, including solar panel charging, grid electricity charging, and engine alternator charging. This flexibility allows the battery to be integrated into various energy systems such as solar setups, RV power systems, and backup power configurations.

The product supports customization options, factory-direct supply, branded cell selection, and intelligent BMS configurations. Its production process is mature and stable, ensuring consistent quality and reliable long-term performance.

Electrical Performance

The battery operates at a nominal voltage of 25.6V with a rated capacity of 200Ah, providing a total energy storage capacity of 5120Wh. Internal resistance is maintained at ≤65mΩ to ensure efficient energy transfer and stable output performance.

Energy efficiency reaches 99%, while self-discharge is kept at approximately 2% per month, making it suitable for long-term standby operation. The system is built using LiFePO4 cell chemistry, known for its thermal stability and high safety characteristics.

The battery supports flexible configuration options, including up to 8S and 4P expansion depending on system requirements.

Discharge Performance

The battery supports a continuous discharge current of 100A, making it suitable for powering medium to high-load electrical equipment. It also supports pulse discharge currents up to 200A for up to 3 seconds, ensuring stable performance under sudden load demands.

The recommended discharge cut-off voltage is 20V, while the BMS protection cut-off voltage is set at 17.6V. The system automatically reconnects at 21.6V once voltage recovers. Short-circuit protection is activated within 300–800 microseconds to ensure system safety under fault conditions.

Charging System

Charging is controlled using a CC-CV algorithm to ensure safe and efficient energy storage. The charging voltage range is set between 28.4V and 29.2V, while the recommended float voltage is approximately 27V for long-term maintenance charging.

The recommended charging current is 50A, while the maximum charging current is 100A for faster charging applications. The BMS charging cut-off voltage is set at 30V to prevent overcharging and protect the battery cells.

Temperature Adaptability

The battery is designed for stable operation across a wide environmental range. It supports discharge temperatures from -20°C to 60°C, charging temperatures from 0°C to 60°C, and storage temperatures from -10°C to 60°C. The BMS includes high-temperature protection that activates at 65°C to ensure safe operation under extreme conditions.

Mechanical Design

The battery is built with a durable ABS housing and compact structural design measuring 640 × 245 × 220mm. It weighs approximately 42kg, balancing high capacity with manageable installation requirements.

Standard M8 terminals are used for secure electrical connection. The enclosure provides IP65 protection, offering resistance against dust and water intrusion for outdoor and semi-outdoor applications.

Cycle Life and Reliability

This LiFePO4 battery is rated for more than 4000 cycles at 80% depth of discharge under 1C operating conditions. This long cycle life significantly reduces replacement frequency and improves total cost efficiency compared with traditional battery technologies.

Application Areas

This 25.6V 200Ah battery is widely used in home energy storage systems, solar energy storage solutions, RV power systems, marine propulsion systems, outdoor high-power equipment, and UPS backup systems. Its combination of high capacity, long cycle life, and stable performance makes it suitable for both stationary and mobile energy applications.