BYD FC4680 3.2V 15Ah LiFePO4 Large-Format Battery – 15A Discharge, 4000+ Cycles for Portable Power Stations & Solar Storage (2pcs)
Description
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:
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BYD FC4680 Premium LiFePO4 Cell: High-quality 4680 large-format battery from the global leader BYD.
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15Ah / 48Wh High Capacity: Provides massive energy storage for extended runtimes.
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15A Continuous Discharge: Delivers a stable 15A continuous output for multi-device power needs.
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4000+ Ultra-Long Cycle Life: Exceptional durability, economical and eco-friendly.
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Ultra-Low Self-Discharge (≤2%/month): Maintains power even during long-term storage.
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Advanced LiFePO4 Safety Chemistry: Superior thermal stability, explosion-proof design, and enhanced safety against overcharging and short circuits.
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Standard 4680 Size: 46.3mm (Dia) x 80.2mm (H), fits standard 4680 battery compartments.
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Versatile Applications: Ideal for power stations, solar storage, e-bike conversions, and DIY battery packs.
Product Parameters:
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Brand: BYD
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Model: FC4680
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Size: 4680
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Capacity: 15Ah / 15000mAh
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Energy: Approx. 48Wh
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Nominal Voltage: 3.2V
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Full Charge Voltage: 3.65V
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Discharge Current: 3A
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Max Continuous Discharge Current: 15A
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Max Continuous Charging Current: 15A
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Chemistry: LiFePO4 (Lithium Iron Phosphate)
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Self-Discharge Rate: ≤2% per month
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Cycle Life: ≥ 4000 cycles
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Weight: 325g ± 10g
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Dimensions: 46.3mm (Diameter) x 80.2mm (Height)
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Pack Quantity: 2pcs
Applications:
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Portable Power Stations & Energy Storage: Ideal core cell for building high-capacity portable power stations and home backup systems.
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Solar Energy Storage Systems: Reliable, long-lasting energy storage for off-grid solar setups.
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E-Bike & E-Scooter Conversions: High-capacity power source for retrofitting electric bicycles and scooters.
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DIY Battery Pack Assembly: Perfect for assembling custom 12V, 24V, and 48V battery packs.
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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.
Shipping and Returns
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Free Shipping: Enjoy free shipping on all orders over $65. For orders under $65, the shipping cost is $8.99.
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Delivery Time: Once shipped, orders typically arrive within 7–15 business days.
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Easy Returns: We want you to be completely satisfied. If you're not, you can return your product within 30 days of receiving your order. Please ensure the items are unused and in their original condition. For return instructions, please contact our support team.
Payment & Security
Payment methods
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Security
After extensive research, I found these to be the best combination of quality, capacity, and price. They don't disappoint.
Each battery was securely wrapped and packed in its own box. No dents or damage during transit.
They held up great in my outdoor solar setup. I can already tell these are going to last much longer than my old Li-ion.
I use these to power my 50W mobile radio base. They provide clean DC power with no noise.
I tested them at 10A and the voltage didn't drop at all. Perfect for tools that require steady power.
Refund Policy
OneAndes Return & Refund Policy
At OneAndes, we are committed to providing high-quality cylindrical lithium-ion batteries for your drones, vacuums, garden tools, and other power needs. If you are not completely satisfied with your purchase, we are here to help. Please read our full return policy below before initiating a return.
1. Return Window
You have 30 calendar days from the date you received your item(s) to request a return. Any return request submitted after 30 days will not be eligible for a refund or exchange.
2. Eligibility Conditions
To qualify for a return, all items must meet the following conditions:
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Condition: Items must be unused, undamaged, and in the same condition that you received them.
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Packaging: Items must be returned in their original packaging with all accessories, manuals, and protective covers intact.
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Proof of Purchase: A valid receipt, order confirmation email, or proof of purchase must accompany all returns.
Non-Returnable Items:
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Batteries that have been installed, used, or show any signs of wear.
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Items marked as “Final Sale” or “Clearance” at the time of purchase.
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Customized or special-order products.
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Gift cards.
If a returned item fails to meet these conditions, we reserve the right to deny the return or charge a restocking fee.
3. How to Initiate a Return
Follow these steps to return your product:
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Contact Us: Email our support team at support@oneandes.com with your order number and the reason for return. We aim to respond to all return requests within 24 hours on business days.
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Receive RMA: We will provide you with a Return Merchandise Authorization (RMA) number and return instructions. Do not ship any item without an RMA number.
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Pack Securely: Place the item in its original packaging, include all accessories, and clearly write the RMA number on the outside of the box.
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Ship to Our US Warehouse: Ship the package to the following address:
OneAndes Returns
10320 6th St
Rancho Cucamonga, CA 91730
USA*Important: Lithium-ion batteries are classified as hazardous materials (Class 9). Please follow the shipping guidelines provided in Section 4 below. We recommend using a trackable shipping service and purchasing shipping insurance, as we cannot guarantee receipt of your returned item.*
4. Return Shipping Costs
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Defective or Incorrect Items: If the item you received is defective, damaged in transit, or different from what you ordered, OneAndes will cover the return shipping cost. In this case, we will provide you with a prepaid return shipping label.
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Buyer’s Remorse / Non-Defective Returns: If you are returning an item for any other reason (e.g., no longer needed, ordered the wrong model), you are responsible for the return shipping costs. You must prepay the return shipping cost using a trackable carrier that accepts lithium batteries. We do not provide prepaid return labels for non-defective returns.
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Lithium Battery Shipping Regulations: By law, all returns must be shipped in compliance with applicable dangerous goods regulations. We will provide guidance on proper packaging and labeling. Failure to comply may result in carrier refusal, seizure, or additional fees. We are not responsible for returned items lost or rejected by the carrier due to improper shipping.
5. Refunds
Once we receive and inspect your return at our Rancho Cucamonga, CA facility, we will notify you via email of the approval or rejection of your refund.
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Approved Refunds: If approved, your refund will be processed to your original method of payment within 5 to 10 business days. Please note that depending on your bank or credit card issuer, it may take additional time for the credit to appear on your statement.
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Partial Refunds: In certain situations, only partial refunds may be granted:
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Items not in original condition, missing parts, or damaged for reasons not due to our error.
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Items returned more than 30 days after delivery (reviewed on a case-by-case basis).
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Non-Refundable Fees: Original shipping charges are non-refundable unless the return is due to our error (defective product or incorrect shipment).
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Restocking Fee: We do not charge a restocking fee for defect-free returns, but we may deduct the return shipping cost, which will be deducted from your refund.
6. Exchanges
We replace items only if they are defective or damaged upon arrival. If you need to exchange a defective item for the same product, please contact us at support@oneandes.com. Exchanges are subject to product availability.
If you ordered the wrong battery size or model, please follow the standard return process above and place a new order for the correct item.
7. Damaged or Missing Items
If your package arrives visibly damaged, please take photos of the package before opening and contact us immediately. We will work with the shipping carrier to file a claim and arrange for a replacement or refund. Damaged or missing item claims must be reported within 7 calendar days of delivery. For immediate assistance, you may also call us at (213) 316-8849.
8. Order Cancellation
You may cancel your order without penalty if it has not yet been shipped. To cancel, email us at support@oneandes.com as soon as possible. If the order has already been processed or shipped, you will need to follow the standard return process upon receipt.
9. Warranty
All OneAndes batteries are backed by a 12-month limited warranty against defects in materials and workmanship. This warranty does not cover damage caused by misuse, improper charging, unauthorized modifications, normal wear and tear, or use outside of manufacturer specifications. For warranty claims, please contact our support team.
10. Contact Us
If you have any questions about our Return & Refund Policy, please reach out:
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Email: support@oneandes.com
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Phone: (213) 316-8849 (Mon-Fri, 9 AM – 5 PM Pacific Time)
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Mailing Address: 10320 6th St, Rancho Cucamonga, CA 91730, USA
We aim to respond to all inquiries within 24 hours during business days. Please include your order number for faster assistance.