XTAR FC2 2-Bay Smart Battery Charger | Type-C Input & 3-Level Adjustable Current for 3.6V/3.7V Li-ion 18650 21700 & 1.2V Ni-MH AA AAA
Description
Product Description
Simplify your charging with the XTAR FC2. This compact 2-slot smart charger supports a wide range of 3.6V/3.7V Li-ion and 1.2V Ni-MH/Ni-CD cylindrical batteries. It features a modern Type-C input for convenient power access and a 3-level adjustable current slider (0.5A, 1.0A, 2.0A) to optimize charging speed for different battery capacities. With independent dual slots, a user-friendly 4-LED indicator system, and comprehensive built-in safety protections, the XTAR FC2 offers a reliable, simple, and efficient charging experience for your daily electronic devices and DIY projects.
Key Features
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Smart Dual Independent Slots: Features two completely independent charging circuits, allowing you to mix and charge Li-ion and Ni-MH/Ni-CD batteries safely at the same time without interference.
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Wide Battery Compatibility: Supports 3.6V/3.7V Li-ion batteries (10440, 14500, 14650, 16340, 17500, 17670, 18350, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650) and 1.2V Ni-MH/Ni-CD batteries (AAAA, AAA, AA, A, SC, C).
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3-Level Adjustable Charging Current: Features a simple, intuitive 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 (single slot), providing precise control for various battery sizes.
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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 using standard phone adapters, laptops, power banks, or car chargers.
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Intuitive 4-LED Indicator System: The clear LED lights provide real-time charging status at a glance. Flowing/Blinking lights indicate charging or activating; 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
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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
Applications
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Daily charging and maintenance for 18650/21700 batteries in EDC flashlights and tactical lights.
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Efficient charging for 1.2V AA/AAA Ni-MH batteries in digital cameras, wireless mice, and remotes.
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Versatile charging station for hobbyists managing both Li-ion and Ni-MH battery collections.
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Portable and lightweight charging solution for outdoor headlamps, camping gear, and travel.
Frequently Asked Questions (FAQ)
Q1: What batteries does the XTAR FC2 support?
A1: The FC2 supports a wide range of 3.6V/3.7V Li-ion batteries (including 10440, 14500, 18650, 20700, 21700, 26650, etc.) and 1.2V Ni-MH/Ni-CD batteries (AAAA, AAA, AA, A, SC, C).
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.
Q3: What do the 4 LED lights indicate?
A3: When the lights are flowing or blinking, 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, prompting you to remove it immediately.
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 3.7V Li-ion battery in one slot and a 1.2V Ni-MH battery in the other simultaneously.
Q5: Can the FC2 charge 21700 batteries?
A5: Yes, the FC2 physically supports 21700 battery sizes (without protection boards).
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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security

The ability to choose charge speed puts me in control. The FC2 is compact, USB-C powered, and handles all my cells.
For the price, the FC2 is hard to beat. Type-C, adjustable current, and multi-chemistry support. My new EDC charger.
The bays are long enough for protected 21700s. The adjustable current lets me balance speed vs. battery longevity.
I set it to 0.5A for my 14500 cells and 2A for my 21700s. The FC2 detects chemistry and voltage correctly.
The FC2 is so small it disappears in my bag. Type-C input means one less cable. I use it for my 21700 flashlight cells.
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.
