BYD FC4680 3.2V 15Ah LiFePO4 Large-Format Battery – 15A Discharge, 4000+ Cycles for Portable Power Stations & Solar Storage (2pcs)

Product Description:
The BYD FC4680 is a premium-grade 4680 large-format lithium iron phosphate (LiFePO4) battery, engineered with BYD's world-class blade battery technology. This 2pcs bundle delivers a massive 15Ah (15000mAh) capacity, approximately 48Wh of energy, and a stable 15A continuous discharge current. Thanks to its high capacity and ultra-low self-discharge rate, it is the ideal core cell for portable power stations, solar energy storage systems, home backup power, and high-capacity DIY battery packs.

Built with advanced LiFePO4 chemistry, this cell offers superior thermal stability, an ultra-long 4000-cycle lifespan, and exceptional safety. With a monthly self-discharge rate of just 2%, it maintains its charge even after long periods of storage. As a bare cell, it is designed for professional assemblers and advanced DIY enthusiasts building custom high-capacity power solutions.

Key Features:

• BYD FC4680 Premium LiFePO4 Cell: High-quality 4680 large-format battery from the global leader BYD.

• 15Ah / 48Wh High Capacity: Provides massive energy storage for extended runtimes.

• 15A Continuous Discharge: Delivers a stable 15A continuous output for multi-device power needs.

• 4000+ Ultra-Long Cycle Life: Exceptional durability, economical and eco-friendly.

• Ultra-Low Self-Discharge (≤2%/month): Maintains power even during long-term storage.

• Advanced LiFePO4 Safety Chemistry: Superior thermal stability, explosion-proof design, and enhanced safety against overcharging and short circuits.

• Standard 4680 Size: 46.3mm (Dia) x 80.2mm (H), fits standard 4680 battery compartments.

• Versatile Applications: Ideal for power stations, solar storage, e-bike conversions, and DIY battery packs.

Product Parameters:

• Brand: BYD 

• Model: FC4680

• Size: 4680

• Capacity: 15Ah / 15000mAh

• Energy: Approx. 48Wh

• Nominal Voltage: 3.2V

• Full Charge Voltage: 3.65V

• Discharge Current: 3A

• Max Continuous Discharge Current: 15A

• Max Continuous Charging Current: 15A

• Chemistry: LiFePO4 (Lithium Iron Phosphate)

• Self-Discharge Rate: ≤2% per month

• Cycle Life: ≥ 4000 cycles

• Weight: 325g ± 10g

• Dimensions: 46.3mm (Diameter) x 80.2mm (Height)

• Pack Quantity: 2pcs

Applications:

• Portable Power Stations & Energy Storage: Ideal core cell for building high-capacity portable power stations and home backup systems.

• Solar Energy Storage Systems: Reliable, long-lasting energy storage for off-grid solar setups.

• E-Bike & E-Scooter Conversions: High-capacity power source for retrofitting electric bicycles and scooters.

• DIY Battery Pack Assembly: Perfect for assembling custom 12V, 24V, and 48V battery packs.

• Home Backup & Emergency Power: Reliable power for UPS systems and emergency energy storage.

Frequently Asked Questions (FAQ):

Q1: What is the discharge current of this battery?
A1: According to the official spec sheet, this BYD FC4680 has a standard discharge current of 3A and a max continuous discharge current of 15A. This makes it suitable for high-capacity storage applications, portable power stations, and mid-power e-bike conversions.

Q2: How long does this battery last in terms of cycle life?
A2: This LiFePO4 cell supports an exceptional 4000+ full recharge cycles. With a monthly self-discharge rate of just 2%, it retains its capacity over a very long lifespan, providing outstanding long-term value.

Q3: Is this battery suitable for building a 12V battery pack?
A3: Yes. For a standard 12.8V system, you would connect 4 of these 3.2V cells in series (4S). Always use a BMS (Battery Management System) when building custom packs to ensure safety and balance.

Q4: Can I use this battery for high-power electric tools?
A4: This battery is optimized for high-capacity storage and 15A continuous discharge. For high-torque power tools requiring 30A+ burst currents, we recommend using a high-discharge power cell instead. This cell is best suited for storage, e-bikes, and portable power stations.

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.