10000 Times Cycle Life Grade A CALB Lifepo4 Battery 280AH Nominal Capacity For Boat

CALB is a renowned research and manufacturer of batteries with extensive intellectual property, making their products popular worldwide. Through years of development, CALB has contributed to green power utilization and reduction of CO2 emissions.

Ten major scientific research innovation platforms including "National Enterprise Technology Center", "Postdoctoral Research Workstation", and "Henan Engineering Technology Research Center".

100% coverage of core technology intellectual property rights with patents applied in China, United States, Europe and other regions. Awarded China Excellent Patent Award, Jiangsu Provincial Intellectual Property Management Standardization Certification, and recognized as Henan Provincial Intellectual Property Application Demonstration Enterprise.

22 scientific research projects have passed appraisal by Henan Province or the Aviation Industry Corporation of China, with 10 identified as internationally advanced level and 1 as internationally leading level.

9000 CYCLES: 0.5C charge to 3.65V, 0.5C discharge to 2.5V as a cycle. After 9000 cycles, 80% capacity remains. Real capacity 300-304ah.

280ah Lifepo4 lithium battery is a favorite choice for DIY users in solar energy storage and off-grid backup applications. Suitable for caravan, camp caravan, golf cart, forklift, electrical bike, motorbike, and more.

Screw connected prismatic battery cells can be easily mounted with bus bars and screws, making them ideal for DIY projects.

• Safety: Safest lithium battery with built-in PCM/PCB, non-flammable and non-explosive
• Clean and Green energy with no toxic materials
• Long life cycle with 80% capacity remaining after 500 deep cycles
• No memory effect, highly efficient charging anytime without capacity reduction
• Operation temperature: -20~55°C
• Good performance at high temperature with high temperature resistance
• Low self-discharge rate: < 3% monthly

• Exercise caution when working with electrical equipment
• Wear safety glasses and gloves when appropriate
• Ensure cells are within operating temperature range prior to use
• Do not use if cells are punctured, damaged or leaking
• Provide adequate protection to cells during assembly and use
• Dispose of properly at recycling facilities
• Do not submerge in water
• Do not expose to direct heat, extreme temperatures or fire
• Prevent harsh impacts or extreme vibrations

Deep cycle capability with more than 2000 times life span, providing longer life than lead acid batteries.

Foams and UN carton packaging for safe transportation.

This lithium battery is suitable for various applications including golf cart, RV, solar storage system, E-motorcycle, home energy storage system, powerwall, and more.

Note: We can ship to other countries - contact us for details. We prioritize honesty and reliability over cheap but unreliable shipping methods.

Regardless of battery grade (A, B, or C) or whether cells are new or used, initial balancing is essential to bring all cells to the same state of charge. Voltage alone is unreliable for determining state of charge in LiFePO4 chemistry due to their flat charge and discharge curves.

Proper initial balancing ensures accurate capacity test results and prevents premature triggering of BMS high/low voltage cutoffs. If balancing problems occur, an active balancer may be needed to compensate.

While parallel connection allows natural balancing over weeks or months, manual top balancing is recommended for large battery banks, cells with varying internal resistance, or when precise capacity balancing is required.