9000 Cycles Deep Cycle CALB Lifepo4 Battery 280Ah 3.2V for Solar RV

9000 cycles Deep cycle CALB 280ah 300ah 320ah lifepo4 battery for solar RV applications.

China Aviation Lithium Battery

CALB is a renowned research and manufacturer of batteries. The group owns extensive intellectual property, making their products popular in the global market. CALB batteries are shipped worldwide, contributing to green power usage and reducing CO2 emissions.

Scientific Research Innovation Platform

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

Intellectual Property

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

Scientific and Technological Achievements

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 times cycle life with 80% capacity retention.

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.

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

Connection

Screw-connected prismatic battery cells can be easily mounted/connected with bus bars/screws, making DIY installation straightforward.

• Safety: Safest lithium battery with built-in PCM/PCB, non-flammable and non-explosive
• Clean and Green energy: No toxic materials contained
• Long life cycle: 80% capacity remains after 500 deep cycles
• No memory effect: Highly efficient charging anytime with no capacity reduction
• Operation temperature: -20~55°C
• Good performance at high temperature with high temperature resistance
• Low self-discharge rate: < 3% monthly

All batteries undergo thorough testing before shipment to ensure quality and performance.

• 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 cycles lifespan, significantly longer than lead acid batteries.

Packaged with protective foams in UN-certified cartons for safe transportation.

This lithium battery is suitable for numerous applications including golf carts, RVs, solar storage systems, E-motorcycles, home energy storage systems, powerwalls, and more.

Shipping to USA: By sea + Express (DDP, Tax free)

ETD: 5-8 days | ETA: 25-35 days after sailing

Shipping to EU: By railway + Express (DDP, Tax free) - Except Switzerland, Romania

ETD: 5-8 days | ETA: 30-45 working days after shipping

For remote areas not listed, please provide shipping address and zip code for verification.

Whether using grade A, B, C, or used LiFePO4 cells, initial balancing is essential to bring them to the same state of charge. Voltage alone is unreliable for determining state of charge due to the flat charge/discharge curve of this chemistry.

Proper initial balance ensures accurate capacity test results. If cells are unbalanced, it can trigger BMS protection and provide inaccurate capacity readings. For large battery banks or cells with varying internal resistance, manual top balancing is recommended regardless of initial voltage readings.

While connecting cells in parallel allows natural balancing over time (weeks or months), manual top balancing provides immediate and reliable results, especially important for large loads and capacity testing.