XTAR VC2L Smart Charger with 21700 4900mAh 10A Button Top Battery Bundle | 2A Fast Charge with Color VA LCD for High-Power Drones
Description
Product Description
This bundle pairs the upgraded XTAR VC2L 2-slot smart charger with high-capacity XTAR 21700 4900mAh 10A lithium-ion rechargeable batteries. (Available in 1-Pack or 2-Pack options). The included 21700 battery delivers an impressive 4900mAh true capacity, a 3.6V nominal voltage, and a robust 10A maximum continuous discharge current. It features a Button Top positive terminal, ensuring excellent contact with high-power devices like drones. The XTAR VC2L charger features an upgraded extendable spring-loaded slot design, specifically engineered to safely accommodate protected 20700 and 21700 batteries—making it a perfect match for this kit. With a vibrant color VA LCD screen, 2A single-slot fast charging, Type-C input, and 0V activation, this kit provides a highly compatible, informative, and powerful charging solution for your high-drain portable electronics.
Key Features
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Complete High-Performance Power Kit: Includes one XTAR VC2L upgraded charger (with Type-C cable) and one or two XTAR 21700 4900mAh 10A batteries based on your selection.
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High-Capacity Battery Specifications: Features 4900mAh true capacity, a 3.6V nominal voltage, a 4.2V charging cut-off, and a 10A maximum continuous discharge current. It features a Button Top positive terminal, perfectly suitable for and RC drones. Weighing 71g, it measures 21.4mm in diameter and 74.8mm in height.
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Upgraded Extendable Battery Slots: The VC2L features a newly designed spring-loaded bay that securely accommodates this 21700 battery. A key advantage: it safely supports protected 20700 and 21700 batteries, providing superior versatility over many standard chargers.
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Innovative Color VA LCD Display: Equipped with a high-contrast color screen using a creative gauge-style interface, it clearly displays real-time battery voltage, charging current gear, charged capacity (mAh), and battery type.
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2A Single-Slot Fast Charging & Type-C Input: Supports adjustable charging currents: 2A for a single slot, 1A for two slots, or 0.5A for two slots. Features a modern Type-C port (5V 2.1A) for easy connection to phone adapters, laptops, or power banks.
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Intelligent Charging & 0V Activation: Automatically identifies battery types and applies TC-CC-CV for Li-ion or 0ΔV/-ΔV pulse charging for Ni-MH. Built-in 0V activation safely revives over-discharged batteries.
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Comprehensive Safety Protection: Built-in over-current, over-voltage, over-charge, short-circuit, and reverse polarity protection (with "Err" warnings on the screen), supported by intelligent temperature control.
Product Parameters
Charger (XTAR VC2L):
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Model: XTAR VC2L
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Input Power: DC 5V 2.1A (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 ± 0.05V (Li-ion) / 1.45 ± 0.1V (Ni-MH)
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Charging Cut-off Current: ≤150mA
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Operating Temperature: 0 - 40°C
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Dimensions: 136 x 63 x 33 mm
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Net Weight: 115g
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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, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650
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Supported Ni-MH/Ni-CD Sizes: AAAA, AAA, AA, A, SC, C
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Upgrade Note: This charger supports protected 20700 and 21700 batteries.
Battery (XTAR 21700 4900mAh):
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Brand: XTAR
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Model: 21700 Rechargeable Li-ion Battery
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Nominal Capacity: 4900mAh
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Nominal Voltage: 3.6V
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Charging Cut-off Voltage: 4.2V
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Max Continuous Discharge Current: 10A
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Positive Terminal: Button Top
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Weight: 71g
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Dimensions: 21.4 ± 0.3mm (Diameter) x 74.8 ± 0.5mm (Height)
Applications
- Reliable and powerful power source for high-performance RC drones, aircraft models, and robotics.
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Long-lasting energy for high-lumen EDC tactical flashlights and searchlights.
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Professional battery management for outdoor survival gear and emergency backup systems.
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A versatile and future-proof charging solution that natively supports protected 21700 cells, offering superior device compatibility.
Frequently Asked Questions (FAQ)
Q1: What is included in this bundle?
A1: The bundle includes one XTAR VC2L smart charger, one Type-C charging cable, one user manual, and either 1 or 2 units of the XTAR 21700 4900mAh 10A Button Top batteries based on your selected variant.
Q2: Can the VC2L charger accommodate the 21700 battery in this kit?
A2: Absolutely. The VC2L features an upgraded extendable spring-loaded slot design specifically engineered to safely accommodate this 74.8mm long 21700 battery (including those with protection boards).
Q3: How do I switch the charging current on the VC2L?
A3: Simply click the physical button located just below the LCD display screen to cycle through the three current settings: 2A for a single slot, 1A for two slots, or 0.5A for two slots.
Q4: What does the color VA LCD display show?
A4: The innovative gauge-style display provides real-time, easy-to-read information including battery voltage, charging current gear, charged capacity (mAh), and battery type. If a battery is inserted incorrectly, the screen will clearly display "Err".
Q5: Can I charge a Li-ion and a Ni-MH battery at the same time?
A5: Yes. The VC2L features completely independent dual-slot circuits, allowing you to safely charge a 3.6V Li-ion battery (like this 21700) in one slot and a 1.2V Ni-MH battery in the other slot simultaneously.
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 VC2L with these 21700s is a match made in heaven. Fast charge, clear display, and long runtime.
The VC2L is the best-looking charger I've owned. The batteries are high capacity and perform as rated.
My mapping drone controller runs on these. The VC2L charges them overnight. The display is gorgeous.
The color screen makes monitoring charge progress easy. The 4900mAh cells have low internal resistance.
The button top fits my drone transmitter perfectly. The VC2L's display is informative and stylish.
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.
