XTAR VC4H 4-Bay Smart Battery Charger | 2A Fast Charge with LCD Display for 3.6V/3.7V Li-ion 18650 21700 & 1.2V Ni-MH AA AAA
Description
Product Description
The XTAR VC4H is a high-performance upgraded 4-slot smart battery charger designed for both 3.6V/3.7V Li-ion and 1.2V Ni-MH/Ni-CD batteries. Equipped with a modern QC3.0 Type-C input, it delivers a fast 2A charging current for two slots simultaneously or 1A for all four slots. Unlike previous models, the VC4H features an extended slot design that specifically supports protected 20700 and 21700 batteries. The intuitive LCD gauge screen provides real-time visibility of battery voltage, current, charged capacity (mAh), battery type, and channel information. With advanced 0V activation, intelligent TC-CC-CV and pulse charging algorithms, and comprehensive safety protections, the XTAR VC4H is an ideal, practical, and upgraded charging station for your diverse battery collections.
Key Features
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Upgraded Extended Slots: Specifically designed to safely accommodate and charge protected 20700 and 21700 batteries, offering superior versatility over standard chargers.
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Intelligent LCD Gauge Display: The clear, innovative screen displays essential real-time data, including battery voltage, charging current gear, charged capacity (mAh), battery type (Li-ion or Ni-MH), and slot number.
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QC3.0 Fast Type-C Input: Features a universal Type-C port supporting QC3.0 protocols (5V/3A, 9V/2A). Allows for efficient charging with a 2A current for 2 slots simultaneously (2Ax2) or 1A for all 4 slots (1Ax4) for Li-ion batteries.
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Smart Charging Algorithms: Automatically identifies battery types and applies the optimal charging strategy: Unique TC-CC-CV (Trickle-CC-CV) for Li-ion batteries, and precise pulse charging with 0ΔV and -ΔV cut-off detection for Ni-MH/Ni-CD batteries to ensure a full charge and protect battery lifespan.
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0V Activation Technology: Built-in 0V activation safely revives and recovers over-discharged lithium batteries, giving new life to depleted cells.
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Intuitive LED Status Lights: Features clear red/green LED indicators. Red light indicates active charging, self-testing, or activation. Green light indicates standby, fully charged, or reverse polarity protection (please correct immediately).
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One-Button Operation & Convenience: Use the "Curr." button to manually switch charging currents. Use the "Mode" button to cycle through slot information on the LCD. Press and hold either button for 1.5 seconds to turn off the screen backlight.
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Comprehensive Safety Protections: Built-in overcharge, overcurrent, overvoltage, short-circuit, and reverse polarity protection, supported by an intelligent temperature control system for stable and safe charging.
Product Parameters
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Model: XTAR VC4H
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Input Power: QC3.0 Type-C (5V⎓3A / 9V⎓2A)
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Charging Current (Li-ion 4.2V): 2A x 1 / 2A x 2 / 1A x 4
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Charging Current (Ni-MH 1.45V): 1A x 1 / 1A x 2 / 1A x 4 / 0.5A x 4
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Charging Cut-off Current: ≤150mA
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Operating Temperature: 0 - 40°C
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Dimensions: L156mm x W115mm x H32mm
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Net Weight: 210g
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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
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Supported Ni-MH/Ni-CD Sizes: AAAA, AAA, AA, A, SC, C, D
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Important Upgrade Note: This charger supports protected 20700 and 21700 batteries.
Applications
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Upgraded daily charging station for EDC tactical flashlights, headlamps, and outdoor gear using protected 21700 cells.
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Efficient power maintenance and charging for 1.2V AA/AAA Ni-MH batteries in digital cameras, remote controls, and wireless devices.
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Convenient mixed charging for both 3.6V Li-ion and 1.2V Ni-MH household batteries.
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An all-in-one, versatile solution for managing a large collection of diverse cylindrical batteries.
Frequently Asked Questions (FAQ)
Q1: What is included in the package?
A1: The package includes 1x XTAR VC4H Smart Charger, 1x Type-C Charging Cable, 1x User Manual, and 1x Protective Storage Pouch. (Batteries are not included).
Q2: Can the VC4H charge protected 20700 and 21700 batteries?
A2: Yes. This is a major upgrade of the VC4H. It is specifically designed with extended slots to safely accommodate protected 20700 and 21700 batteries, unlike many other compact chargers.
Q3: What is the maximum charging current of the VC4H?
A3: For Li-ion batteries, the VC4H supports up to a 2A current for a single slot, 2A for two slots simultaneously, or 1A for all four slots simultaneously. For Ni-MH batteries, it supports up to 1A.
Q4: What do the LED indicator lights mean?
A4: Red light indicates the battery is charging, undergoing self-testing, or being activated. Green light indicates the charger is in standby mode, the battery is fully charged, or the battery is inserted with reversed polarity. If the light is green and the battery is not full, please check the battery direction.
Q5: How do I turn off the screen backlight?
A5: You can simply press and hold either the "Curr." or "Mode" button for 1.5 seconds to turn off the LCD backlight. Pressing the button again will turn it back on.
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 feature set at this price is unbeatable. The display, fast charge, and chemistry support make it a must-have.
Finally an affordable charger with a good screen and USB-C. The VC4H fits my longest protected 21700s.
I've been using this for months. The mAh counter helps me track capacity fade. The 2A charge is consistent. Highly recommend.
The VC4H feels premium. The display auto-rotates info. I manually select 0.5A for my older cells. A well-thought-out charger.
Charges my 21700, 18650, AA, and AAA all in one go. The LCD is bright and easy to read. Type-C means one cable for everything.
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.
