280Ah LiFePO4 Battery Pack for Solar PV Systems, 3.2V Prismatic Cells, Grade A Safety

Introducing the Tewaycell 280Ah LiFePO4 Battery Pack with 3.2V prismatic cells — a high-performance energy storage solution for solar PV systems. Built with Grade A LiFePO4 chemistry, this pack delivers stable, long-lasting power with enhanced safety, making it ideal for home and small-scale off-grid solar setups. With a compact aluminum shell, it combines solid durability with lightweight design (about 5.25 kg) to fit a variety of battery installations.

Designed for reliability in demanding environments, the battery operates from -20°C to 60°C and supports a generous charging window up to 3.65V and a discharge cut-off of 2.5V. Its low internal impedance (0.16 mΩ typical) helps reduce heat during fast charging and high-current needs, while a nominal voltage of 3.2V delivers consistent energy delivery for interconnected systems. The 280Ah nominal capacity, 1C constant current rating of 280A, and a maximum continuous discharge of 290A ensure you have dependable power for daily solar cycling. This is a sturdy, safe choice for long-term energy storage with an expected life of up to 7,500 cycles at 80% depth of discharge (DOD) at 25°C.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Notes on availability and shipping: due to inventory reasons this product is no longer shipped from our German warehouse. Orders placed from October 20, 2025 will be shipped from our Chinese warehouse, with an estimated delivery time of 45–50 days. If you specifically need German-warehouse stock, please contact us or consider our 314Ah product as an alternative.

Benefits & Tips

• Maximize solar storage with a safe, stable 3.2V LiFePO4 pack designed for long life and reliable daily cycling.
• Use in off-grid or grid-tied PV systems to ensure clean energy storage with quick response under varying temperatures.
• Store and maintain properly: keep in a cool, dry place (≤35°C, 30%–50% SOC) and perform a charge/discharge cycle every 3 months to preserve capacity during long-term idle periods.

Product specifications

• Model Number: LFP-3.2V-280AH
• Nominal Capacity: 280Ah
• Nominal Voltage: 3.2V
• Charging Cut-off Voltage: 3.65V
• Discharge Cut-off Voltage: 2.5V
• Internal Impedance: 0.16 mΩ (typical)
• Operating Temperature Range: -20°C to 60°C
• Standard Charge Temperature: 25±2°C
• Absolute Charging Temperature: 0–60°C
• Absolute Discharge Temperature: -20–55°C
• Discharge Current (Max Continuous): 290A (1C)
• Recommended Constant Current: 60A (0.2C)
• Constant Current: 280A (1C)
• Weight: 5.25 ± 0.1 kg
• Dimensions (L×W×H): 174 × 72 × 203 mm
• Shell Material: Aluminum
• Origin: Mainland China
• Certifications: CE
• Duty/Tax note: EU duties included for many regions; other regions may vary by destination

Package includes:

• 1 x Tewaycell LiFePO4 battery pack (3.2V, 280Ah, prismatic cells)

Warnings / Reminders

• Please check the orientation of the positive and negative terminals before packaging.
• Connect the terminal or wire to the battery module with proper insulation to prevent short circuits.
• When not in use for a long time, store in a cool and dry place (<35°C, 30%–50% SOC) and cycle every 3 months.
• Do not expose the battery to direct sunlight or heat sources.
• Do not wear metal jewelry near the battery during handling to reduce the risk of short circuits.

At intercyprus.com since 2002 — trusted for quality and reliability.