Vapcell Q2S-C 2A Dual-Slot USB-C Li-ion Battery Charger - Smart Independent Bay Charger for 3.6V/3.7V 18650, 21700, 26650, 18350 & More (Batteries NOT Included)
Description
【Product Description】
Charge two batteries simultaneously at full speed! The Vapcell Q2S-C 2A Dual-Slot USB-C Li-ion Battery Charger is a compact, high-performance charging solution designed for enthusiasts who demand speed, safety, and universal compatibility.
Unlike low-end chargers that share a single current across both bays, the Q2S-C features true independent slots, delivering a dedicated 1A charging current to each bay. This means you can charge an 18650 and a 21700 battery at the same time, both at max speed! With an ultra-wide bay design, it easily accommodates long protected 21700 batteries (up to 74.8mm).
Featuring a convenient USB Type-C input, you can power it anywhere via a power bank, laptop, or standard 5V/2A wall adapter. The intelligent charging system automatically switches to a trickle charge when the battery is near full and stops completely at 4.2V to prevent overcharging. Built-in multi-layer safety protection ensures complete peace of mind.
IMPORTANT NOTE: This listing is for the charger, USB-C cable, and user manual only. Rechargeable batteries are NOT included. Please ensure you have 3.6V/3.7V Li-ion batteries ready to use with this charger.
【Key Features】
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True Dual-Slot Independent 1A Charging: Each bay operates independently with a constant 1A current (Total 2A). Charge two different types of batteries simultaneously without reducing speed.
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Ultra-Wide Battery Compatibility: Supports a massive range of 3.6V/3.7V Li-ion batteries, including 10340, 10440, 14500, 16340, 16650, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 22650, 26500, 26650, 20650, 22500, 20700, and 21700 (even long protected ones).
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Auto Cut-off & Trickle Charge: Features a smart charging algorithm that automatically cuts off power when the battery reaches 4.2V ± 1%. A trickle charge mode tops off and maintains battery health for extended lifespan.
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Universal USB Type-C Input: Powered by any standard 5V/2A USB-C power source (charging brick, power bank, car charger). Includes a high-quality USB-C cable.
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Multi-Layer Safety Protection: Built-in protection against over-current, short circuits, over-voltage, and reverse polarity. The internal chip ensures a safe charging environment.
【Parameters & Specifications】
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Model: Vapcell Q2S-C
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Input: DC 5V / 2A (USB Type-C)
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Constant Current: 1A * 2 (1A per slot independently)
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Cut-off Voltage: 4.2V ± 1%
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Compatible Batteries: 3.6V / 3.7V Li-ion / IMR (10340, 10440, 14500, 16340, 16650, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 22650, 26500, 26650, 20650, 22500, 20700, 21700)
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Package Content: Charger, USB-C cable, User manual
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Note: Rechargeable batteries are NOT included.
【Applications】
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Daily DIY Charging: Charging 18650, 21700, and 26650 cells for flashlights, vape mods, and headlamps.
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Outdoor Enthusiasts: Use with a power bank to recharge your spares while camping or hiking.
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Electronics Hobbyists: Perfect for charging batteries for remote-control toys, portable radios, and custom power stations.
【Frequently Asked Questions (FAQ)】
Q1: Does this charger come with batteries?
A1: NO. The Vapcell Q2S-C is sold as a charger kit only. It includes the charger, a USB-C cable, and a user manual. Batteries are not included. You need to purchase 3.6V/3.7V Li-ion rechargeable batteries separately.
Q2: Can I charge two different types of batteries at the same time?
A2: Absolutely. The Q2S-C has two completely independent charging bays. You can charge an 18650 in slot 1 and a 21700 in slot 2 simultaneously, and both will receive 1A of constant current.
Q3: How do I know when the battery is fully charged?
A3: The charger features smart LED indicators. A red light indicates that the battery is currently charging. Once the voltage reaches the 4.2V cut-off, the charger automatically stops and the indicator lights turn green or off (based on the specific LED pattern).
Q4: Can this charger handle protected 21700 batteries?
A4: Yes. The Q2S-C has an ultra-wide slot design. It comfortably accommodates protected 21700 batteries with a length of up to 74.8mm.
Q5: Is it safe to leave the batteries in the charger overnight?
A5: Yes. The Q2S-C features an automatic cut-off function. Once the battery is fully charged (reaching 4.2V), it stops supplying power immediately. It also switches to a low-current trickle charge to maintain battery health and prevent overcharging.
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
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.