Product Description:
The GPHN IFR21700-3000 is a premium-grade 21700 lithium iron phosphate (LiFePO4) battery engineered for reliable power delivery and long cycle life. This 2-Pack bundle delivers a stable 3000mAh (3.0Ah) capacity, 9.6Wh of energy, and a 3C (9A) continuous discharge current. With the standard 21700 form factor, it is the ideal core cell for e-bike conversions, portable power stations, DIY energy storage, and a wide range of everyday devices.
Built with advanced LiFePO4 chemistry, this battery offers superior thermal stability, an ultra-long cycle life, and enhanced safety against overcharging and short circuits. Its 3.2V nominal voltage makes it a perfect drop-in replacement for 12V lead-acid battery systems when used in a 4S configuration.
Key Features:
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GPHN IFR21700-3000 Premium LiFePO4 Cell: High-quality 21700 battery from the trusted brand GPHN (Peng Hui).
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3000mAh / 9.6Wh Capacity: Provides reliable energy for extended runtimes.
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3C (9A) Continuous Discharge: Delivers stable 9A output, suitable for medium-power applications.
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Advanced LiFePO4 Safety Chemistry: Superior thermal stability, explosion-proof design, and enhanced protection against overcharging and short circuits.
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Ultra-Long Cycle Life: LiFePO4 chemistry ensures an exceptionally long service life, far exceeding standard lithium-ion batteries.
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Standard 21700 Size: Perfectly fits standard 21700 battery compartments (21mm x 70mm).
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Versatile Applications: Ideal for e-bikes, portable power stations, solar lighting, and DIY battery projects.
Product Parameters:
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Brand: GPHN
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Model: IFR21700-3000
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Size: 21700
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Capacity: 3000mAh / 3.0Ah
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Energy: 9.6Wh
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Nominal Voltage: 3.2V
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Full Charge Voltage: 3.65V
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Chemistry: LiFePO4 (Lithium Iron Phosphate)
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Discharge Rate: 3C
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Continuous Discharge Current: 9A
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Dimensions: 21mm (Diameter) x 70mm (Height)
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Pack Quantity: 2-Pack
Applications:
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Electric Bicycle & Scooter Conversions: Reliable power source for retrofitting e-bikes and electric scooters.
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Portable Power Stations & Energy Storage: Ideal core cell for building small portable power stations and DIY energy storage systems.
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Solar Garden Lights: Reliable, long-lasting power for outdoor solar lighting and pathway lights.
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Small Cordless Power Tools: Provides stable power for compact drills, screwdrivers, and other DIY tools.
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DIY Battery Packs: Perfect for building custom 12.8V battery packs (4S configuration) for hobby and home projects.
Frequently Asked Questions (FAQ):
Q1: What is the discharge current of this battery?
A1: This GPHN 21700 is rated for a 3C continuous discharge, which translates to a stable 9A discharge current. This makes it suitable for e-bikes, portable power stations, and small power tools.
Q2: What is the advantage of LiFePO4 chemistry?
A2: LiFePO4 (Lithium Iron Phosphate) offers superior thermal stability, a much longer cycle life, and enhanced safety compared to standard lithium-ion batteries. It is much less prone to overheating, explosion, or fire.
Q3: Is this battery safe for e-bike conversions?
A3: Absolutely. With its 3C (9A) discharge rate and 3000mAh capacity, this cell provides stable, reliable power for small e-bike conversions. Always ensure your BMS (Battery Management System) is properly configured for 3.2V LiFePO4 cells.
Q4: How can I build a 12V battery pack with these cells?
A4: For a standard 12.8V system, you would connect 4 of these 3.2V cells in series (4S). Always use a BMS when building custom packs to ensure safety and balance.
Q5: What kind of charger should I use for this battery?
A5: You must use a charger specifically designed for 3.2V LiFePO4 batteries with a 3.65V cut-off voltage. Do not use a standard 3.7V/4.2V Li-ion charger.
