XTAR FC2 Smart Charger with 18650 3500mAh 10A Button Top Battery Bundle | Type-C Adjustable Current Kit for High-Power Flashlights
Description
Product Description
This bundle combines the straightforward and compact XTAR FC2 2-slot smart charger with high-performance XTAR 18650 3500mAh 10A protected lithium-ion rechargeable batteries. (Available in 1-Pack or 2-Pack options). The included 18650 battery delivers a massive 3500mAh true capacity, a 3.6V nominal voltage, and a robust 10A maximum continuous discharge current. Featuring a built-in protection board and a Button Top positive terminal, it ensures excellent safety and broad compatibility with mainstream high-drain devices. The XTAR FC2 charger features a convenient Type-C input, a 3-level adjustable charging current slider, independent dual-slot circuits, and intuitive 4-LED indicators. With comprehensive safety protections, this kit provides a practical, powerful, and reliable power management solution for your heavy-duty electronics.
Key Features
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Complete High-Performance Kit: Includes one XTAR FC2 2-slot charger (with Type-C cable) and one or two XTAR 18650 3500mAh 10A batteries based on your selection.
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Exceptional Battery Specifications: Features 3500mAh true capacity, a 3.6V nominal voltage, a 2.5V discharge cut-off, and a 10A maximum continuous discharge current. Built-in protection board prevents overcharge and short circuits. Ultra-low internal resistance (≤45 mΩ) and supports 800+ recharge cycles. It features a Button Top positive terminal, perfectly suitable for high-lumen flashlights.
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3-Level Adjustable Charging Current: Features an intuitive physical slide switch that allows you to freely select the charging current between 0.5A x 2, 1.0A x 2, and 2.0A x 1, offering precise control for various battery capacities and charging speed preferences.
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Universal Type-C Input: Equipped with a standard Type-C port (DC 5V 2A), making it easy to power the charger via standard phone adapters, laptops, power banks, or car chargers.
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Dual Independent Slots: Supports mixed charging of 3.6V/3.7V Li-ion and 1.2V Ni-MH/Ni-CD batteries simultaneously without mutual interference.
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Intuitive 4-LED Indicator System: Real-time status display. Flowing/Blinking lights indicate charging or activation; 4 solid lights indicate fully charged; 4 simultaneous flashing lights indicate reverse polarity or short circuit protection.
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Comprehensive Safety Protections: Built-in over-current, over-voltage, over-charge, short-circuit, and reverse polarity protection, supported by an intelligent temperature control system for safe and stable charging.
Product Parameters
Charger (XTAR FC2):
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Model: XTAR FC2
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Input Power: DC 5V 2A (Type-C)
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Constant Charging Current: 2A x 1 / 1A x 2 / 0.5A x 2
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Charging Cut-off Voltage: 4.2 ± 0.04V
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Charging Cut-off Current: ≤150mA
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Operating Temperature: 0 - 40°C
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Supported Battery Types: 3.6V / 3.7V Li-ion (IMR/INR/ICR), 1.2V Ni-MH / Ni-CD
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Supported Li-ion Sizes: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650
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Supported Ni-MH/Ni-CD Sizes: AAAA, AAA, AA, A, SC, C
Battery (XTAR 18650 3500mAh):
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Brand: XTAR
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Model: 18650 Rechargeable Li-ion Battery
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Nominal Capacity: 3500mAh
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Nominal Voltage: 3.6V
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Discharge Cut-off Voltage: 2.5V
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Max Continuous Discharge Current: 10A
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Internal Resistance: ≤45 mΩ
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Cycle Life: 800+ cycles
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Protection Board: Built-in (Protected)
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Positive Terminal: Button Top
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Dimensions: Φ18.4±0.3 x H69±0.5 mm
Applications
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High-power energy supply and daily charging for high-lumen EDC tactical flashlights and searchlights.
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Efficient charging for high-capacity 18650 cells in RC drones and model aircraft.
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Professional-grade battery power management for outdoor survival gear and emergency kits.
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A simple and versatile charging solution for both high-capacity Li-ion and Ni-MH household batteries.
Frequently Asked Questions (FAQ)
Q1: What is included in this bundle?
A1: The bundle includes one XTAR FC2 smart charger, one Type-C charging cable, one user manual, and either 1 or 2 units of the XTAR 18650 3500mAh 10A Button Top batteries based on your selected variant.
Q2: How do I change the charging current?
A2: Simply slide the physical switch located on the side of the charger to choose between the three current settings: 0.5A, 1.0A, or 2.0A. Note that the 2.0A setting supports only a single battery at a time.
Q3: What do the 4 LED lights indicate?
A3: Flowing or blinking lights indicate the battery is charging or being activated. 4 solid lights mean the battery is fully charged. 4 lights flashing simultaneously indicate that the battery is inserted incorrectly (reverse polarity) or a short circuit has occurred.
Q4: Can I charge a Li-ion and a Ni-MH battery at the same time?
A4: Yes. The FC2 features independent dual-slot circuitry, allowing you to charge a 3.6V Li-ion battery in one slot and a 1.2V Ni-MH battery in the other slot simultaneously.
Q5: Can this charger handle the large protected 18650 battery in the kit?
A5: Absolutely. The FC2 physically supports standard 18650 sizes. The 69mm length of this button-top battery fits perfectly. (Note: While FC2 fits these 18650s perfectly, it cannot accommodate protected 20700 or 21700 batteries due to physical length restrictions).
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
The 10A drain on these 3500mAh cells is perfect. The FC2 is a smart, adjustable charger. Highly recommend.
My EDC flashlight and backup vape use these. The FC2 is so portable. Type-C is everywhere now.
I set the FC2 to 2A for a quick top-up before work. The 3500mAh cells last all day. Excellent combo.
The batteries have low internal resistance. The FC2 charges them accurately to 4.20V. Good bundle for power users.
I use these in my vape and flashlight. The FC2's adjustable current lets me slow charge overnight. Type-C is a bonus.
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.