3.2V 26650 Battery 4000mah Deep Cycle Lithium Iron Phosphate Battery
Product Details:
| Place of Origin: | China |
| Certification: | UN38.3 MSDS |
| Model Number: | 3.2V 4000mAh |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1000PCS |
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| Packaging Details: | Industrial Pakcage |
| Delivery Time: | 35 working days |
| Payment Terms: | L/C,T/T,Western Union |
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Detail Information |
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| Name: | 26650 Battery 4000mah | Rated Capacity: | 4000mAh |
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| Nominal Voltage: | 3.2V | Max Discharge Current: | 2C |
| Max Charge Current: | 1C | Discharge Teerature: | -20℃~60℃ |
| Charge Teerature: | 0℃~45℃ | Self-discharge Rate: | ≤3%/month |
| Cycle Life: | 2000 Times | ||
| Highlight: | Lithium Iron Phosphate Deep Cycle Battery,26650 Battery 4000mah,Deep Cycle Lithium Iron Phosphate Battery |
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Product Description
26650 3.2V 4000mAh Deep Cycle Lithium Iron Phosphate Battery
Features
- Exceptional Safety: LiFePO4 chemistry is highly stable, resistant to thermal runaway, and non-combustible under normal conditions.
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Long Cycle Life: Capable of over 2000 charge-discharge cycles while maintaining 80% capacity.
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High Energy Density: Provides substantial power in a compact form factor.
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Wide Temperature Range: Performs reliably in both high and low temperature environments.
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Environmentally Friendly: Contains no toxic heavy metals (lead, cadmium, mercury).
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Low Self-Discharge: Maintains charge for extended periods when not in use.
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No Memory Effect: Can be recharged at any state of charge without capacity reduction.
Specification
| Nominal Voltage | 3.2V |
| Rated Capacity | 4000mAh (4.0Ah) |
| Energy | 12.8Wh |
| Dimensions | 26mm (Diameter) × 65mm (Height) |
| Weight | ≈200g (0.2kg) |
| Cycle Life | ≥2000 cycles (to 80% initial capacity) |
| Max Charge Current | 1C |
| Max Discharge Current | 2C |
| Operating Temperature | Charge: 0°C to 45°C; Discharge: -20°C to 60°C |
| Storage Temperature | -20°C to 45°C (Recommended: 20-25°C) |
| Self-Discharge Rate | <3% per month |
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Applications
- Solar Energy Storage Systems: Ideal for solar panel arrays and off-grid power systems.
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Electric Vehicles: Power source for e-bikes, e-scooters, and golf carts.
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Portable Power Stations: Backup power for camping, RV, and emergency use.
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Marine Equipment: Trolling motors, navigation systems, and marine electronics.
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UPS Systems: Uninterruptible power supplies for critical equipment.
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Power Tools: High-drain applications requiring reliable performance.
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LED Lighting Systems: Solar-powered street lights and emergency lighting.
Usage precautions and safety warnings
Charging Precautions:
- Use only chargers specifically designed for LiFePO4 chemistry
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Never exceed maximum charging voltage of 3.65V
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Do not charge at temperatures below 0°C or above 45°C
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Discontinue use if battery becomes hot, swollen, or damaged during charging
Discharging Precautions:
- Avoid deep discharge below 2.5V
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Do not exceed maximum continuous discharge current of 4A
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Never short-circuit the battery terminals
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Allow battery to cool between high-drain applications
Storage & Handling:
- Store in cool, dry environment (20-25°C ideal)
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Maintain charge level at 40-60% for long-term storage
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Keep away from water, moisture, and direct sunlight
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Use insulated tools when handling multiple batteries
Installation Notes:
- Ensure proper polarity when connecting to devices
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Use appropriate battery holders or cases
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For multi-battery configurations, use batteries of same type, age, and capacity
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Implement proper balancing for series/parallel configurations




