XTAR VC4SL Smart Charger with 26650 5200mAh 7A High-Capacity Battery Bundle | 3A Fast Charging with Capacity Grading & IR Test for Heavy-Duty Flashlights
Description
Product Description
This bundle pairs the sophisticated XTAR VC4SL 4-slot smart charger with the ultra-high-capacity XTAR 26650 5200mAh 7A lithium-ion rechargeable battery. (Available in 1-Pack or 2-Pack options). The included XTAR 26650 battery delivers a massive 5200mAh true capacity, a 3.6V rated voltage, and a stable 7A maximum continuous discharge current, making it an excellent energy powerhouse for heavy-drain equipment. The VC4SL charger goes beyond standard charging, featuring QC3.0 3A fast charging via Type-C, a clear LCD display, Capacity Grading mode to measure real mAh, Internal Resistance testing to detect aged cells, and a Storage mode that automatically maintains the battery at its optimal 3.7V long-term storage voltage. This kit offers a complete, professional, and intelligent power maintenance solution.
Key Features
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Complete High-Capacity Kit: Includes one XTAR VC4SL 4-slot smart charger (with Type-C cable & storage pouch) and one or two XTAR 26650 5200mAh 7A batteries based on your selection.
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Massive Battery Capacity & Output: The 26650 battery provides an impressive 5200mAh capacity, a 3.6V nominal voltage, and a robust 7A max continuous discharge current. Weighing 95.5g, it ensures long-lasting, stable energy for heavy loads.
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Intelligent Charger Diagnostics: The VC4SL features a professional LCD screen that offers a Capacity Grading mode (charge-discharge-charge cycle to test true mAh) and a built-in Internal Resistance test to easily identify aging, weak, or damaged battery cells.
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QC3.0 3A Fast Charging: Supports 9V QC3.0 Type-C input, delivering an ultra-fast 3A single-slot charging current, with adjustable 2A/1A/0.5A/0.25A currents for flexible multi-slot charging.
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Voltage Precision & Storage Management: Features a high-precision 4.20V ± 0.05V charging cut-off voltage to prevent overcharging. The Storage mode automatically charges or discharges the battery to the ideal long-term storage voltage of 3.7V, significantly extending battery lifespan.
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Extensive Slot Compatibility: The VC4SL's flexible spring-loaded slots are specially designed to accommodate the 26650 battery (26.5mm diameter) safely, while also supporting a wide array of Li-ion battery sizes from 10440 up to 32650.
Product Parameters
Charger (XTAR VC4SL):
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Input Power: QC3.0 Type-C (9V/2A, Max 18W)
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Constant Charging Current: 3Ax1 / 2Ax2 / 1Ax4 / 0.5Ax4 / 0.25Ax4
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Charging Cut-off Voltage: 4.20V ± 0.05V (Li-ion) / 1.45V ± 0.1V (Ni-MH)
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Charging Cut-off Current: ≤120mA
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Optimal Storage Voltage: 3.7V (Li-ion), 1.2V (Ni-MH)
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Operating Temperature: 0°C - 40°C
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Dimensions: L156 x W115 x H35 mm
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Net Weight: 212g
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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, 32650 (Flat Top)
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Supported Ni-MH/Ni-CD Sizes: AAA, AA, A, SC, C
Battery (XTAR 26650 5200mAh):
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Brand: XTAR
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Model: 26650 Rechargeable Li-ion Battery
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Nominal Capacity: 5200mAh
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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: 7A
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Weight: 95.5g
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Dimensions: 26.5±0.3mm (Diameter) x 69.3±0.5mm (Height)
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Note: Manual measurement has an error margin of 0.5mm.
Applications
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Ideal long-lasting power source for high-lumen searchlights, tactical flashlights, and heavy-duty EDC gear.
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Reliable and stable 7A power supply for outdoor headlamps and extended-duration camping lanterns.
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Professional battery grading, testing, and storage management for RC hobbyists and model aircraft.
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Heavy-duty backup power for outdoor survival kits, emergency radios, and communication equipment.
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Pre-conditioning batteries for long-term storage in power stations and DIY battery packs.
Frequently Asked Questions (FAQ)
Q1: What is included in this bundle?
A1: The bundle includes one XTAR VC4SL 4-slot smart charger, one Type-C fast charging cable, one user manual, one travel storage pouch, and either 1 or 2 units of the XTAR 26650 5200mAh 7A batteries depending on your selection.
Q2: Is the 26650 5200mAh battery compatible with the VC4SL charger?
A2: Yes. The VC4SL charger features wide, extendable spring-loaded slots specifically designed to accommodate larger diameter batteries like the 26650 (26.5mm). It fits safely and will charge efficiently.
Q3: What does the 7A max continuous discharge current mean for my devices?
A3: The 7A discharge rating means the battery can safely provide a continuous current of up to 7 Amps to your high-drain devices without overheating or performance drops, making it perfect for powerful flashlights and high-output outdoor gear.
Q4: What are the voltage specifics of the VC4SL's Storage mode for this battery?
A4: If you leave the battery unused for a long time, the Storage mode will automatically charge or discharge this 3.6V 26650 battery to the optimal long-term preservation voltage of 3.7V. This specific voltage prevents chemical aging and significantly extends battery life.
Q5: How can I confirm the battery is fully charged?
A5: Once the VC4SL charger detects the battery has reached the precise charging cut-off voltage of 4.20V ± 0.05V and the charging current drops below 120mA, the LCD screen will flash "FULL", and the LED indicator will turn green, confirming it is ready for use.
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

If you have 26650 devices, get this. The charger is top-of-the-line and the battery is a high-capacity workhorse. Fast charge gets it done.
The VC4SL handles the large 26650 form factor easily. The 5200mAh battery lasts a week in my camping fan. The grading mode is a great tool.
Just what I wanted: a 26650 battery and a charger that can test it. The VC4SL's display is bright and informative. The cell is a beast in my bike light.
My construction site light runs on this 26650. The XTAR charger tests and charges reliably. I trust this combo to get through a full shift.
Our SAR group uses these 26650 cells in handheld spotlights. The VC4SL grades them so we only take healthy cells into the field. Fast charge 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.
