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This bundle combines the lightweight and compact XTAR MC4S 4-slot smart charger with reliable XTAR 18650 2600mAh 4.5A lithium-ion rechargeable batteries. (Available in 1-Pack or 2-Pack options). The included 18650 battery delivers a stable 2600mAh capacity, a 3.7V nominal voltage, and a 4.5A maximum continuous discharge current. The XTAR MC4S charger features four independent charging circuits, a universal Type-C input, and smart battery type recognition. With intuitive LED indicators and 0V activation to revive over-discharged batteries, this kit provides a complete, portable, and reliable power solution for your daily electronic devices. *(Note: MC4S supports standard 18650 batteries perfectly, but does not support protected 20700/21700 batteries).*
Complete Lightweight Power Kit: Includes one XTAR MC4S 4-slot charger (with USB cable) and one or two XTAR 18650 2600mAh 4.5A batteries based on your selection.
Reliable Battery Specifications: Features 2600mAh true capacity, a 3.7V nominal voltage, a 4.2V charging cut-off voltage, and a 4.5A maximum continuous discharge current. Weighing only 47g, it measures 18.8mm in diameter and 68.8mm in height.
4 Fully Independent Charging Slots: Each slot features independent circuit control, allowing you to safely mix charge Li-ion and Ni-MH/Ni-CD batteries without interference.
Smart Battery Identification: Automatically recognizes battery types and applies the optimal charging strategy: TC-CC-CV (Trickle-CC-CV) for Li-ion and precise 0ΔV / -ΔV detection for Ni-MH.
Intuitive LED Indicator Lights: Red light indicates charging or activation; Green light means fully charged or empty slot; Flashing red/green indicates reversed polarity (please correct immediately).
0V Activation Technology: Built-in 0V activation feature safely revives and recovers over-discharged lithium batteries, giving new life to dead cells.
Type-C Input & Versatile Use: Modern Type-C port allows for easy power connection via wall adapters, laptops, or car chargers. The compact and lightweight design (95g) makes it perfect for travel and outdoor use.
Comprehensive Safety Protections: Built-in overcurrent, overcharge, overvoltage, and short-circuit protections. Automatically stops charging when the battery is full.
Charger (XTAR MC4S):
Model: XTAR MC4S
Input Power: DC 5V 2.1A (Type-C)
Constant Charging Current: 1A x 2 / 0.5A x 4
Charging Cut-off Voltage: 4.20 ± 0.05V
Charging Cut-off Current: ≤70mA
Operating Temperature: 0 - 40°C
Dimensions: L100 x W97 x H26.5 mm
Net Weight: 95g
Supported Battery Types: 3.6V / 3.7V Li-ion, 1.2V Ni-MH / Ni-CD
Supported Sizes: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650 (See restrictions for physical slot limitations on outer slots). Note: This charger does NOT support protected 20700 and 21700 batteries.
Battery (XTAR 18650 2600mAh):
Brand: XTAR
Model: 18650 Rechargeable Li-ion Battery
Nominal Capacity: 2600mAh
Nominal Voltage: 3.7V
Charging Cut-off Voltage: 4.2V
Max Continuous Discharge Current: 4.5A
Weight: 47g
Dimensions: 18.8 ± 0.3mm (Diameter) x 68.8 ± 0.5mm (Height)
Efficient daily charging for standard EDC flashlights and tactical lights.
Reliable power source for 18650 batteries used in electronic cigarettes and mods.
Portable charging solution for outdoor headlamps, camping gear, and survival kits.
Convenient mixed charging station for managing both 3.7V Li-ion and 1.2V Ni-MH household batteries.
Q1: What is included in this bundle?
A1: The bundle includes one XTAR MC4S 4-slot smart charger, one USB-A to USB-C charging cable, one user manual, and either 1 or 2 units of the XTAR 18650 2600mAh 4.5A batteries based on your selected variant.
Q2: Can this charger support the 18650 batteries included in the kit?
A2: Yes. The 18650 batteries are perfectly compatible. However, please note that while the MC4S supports standard 18650 size perfectly, it does NOT support protected 20700 and 21700 batteries.
Q3: What does the flashing Red and Green LED lights mean?
A3: When the LED lights flash between red and green, it indicates the battery has been inserted with reversed polarity. Please immediately remove the battery and insert it in the correct orientation.
Q4: What is the maximum charging current of the MC4S?
A4: The MC4S supports a maximum charging current of 1A for 2 slots simultaneously, or 0.5A for all 4 slots simultaneously.
Q5: Can I charge a Li-ion and a Ni-MH battery at the same time?
A5: Yes. The MC4S features 4 independent charging circuits. You can safely charge a 3.7V Li-ion battery and a 1.2V Ni-MH battery in different slots simultaneously.
Free Shipping: Enjoy free shipping on all orders over $65. For orders under $65, the shipping cost is $8.99.
Delivery Time: Once shipped, orders typically arrive within 7–15 business days.
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.
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The MC4S auto-detects and charges. The batteries test around 2550mAh. Good honest capacity. I'll buy another set for my car kit.
Charger, cable, batteries¡ªit's all there. The 2600mAh cells are perfect for my LED lantern. Type-C is the new standard.
My remote temperature sensors run on these. The MC4S keeps them charged without fuss. The bundle is well priced.
The charger fits in my bag and the batteries last through a full night hike. Great for anyone with multiple 18650 devices.
I cycle these 2600mAh batteries in my headlamp. The MC4S is so small I take it on work trips. Consistent performance.
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:
Condition: Items must be unused, undamaged, and in the same condition that you received them.
Packaging: Items must be returned in their original packaging with all accessories, manuals, and protective covers intact.
Proof of Purchase: A valid receipt, order confirmation email, or proof of purchase must accompany all returns.
Non-Returnable Items:
Batteries that have been installed, used, or show any signs of wear.
Items marked as “Final Sale” or “Clearance” at the time of purchase.
Customized or special-order products.
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:
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.
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.
Pack Securely: Place the item in its original packaging, include all accessories, and clearly write the RMA number on the outside of the box.
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
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.
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.
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.
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.
Partial Refunds: In certain situations, only partial refunds may be granted:
Items not in original condition, missing parts, or damaged for reasons not due to our error.
Items returned more than 30 days after delivery (reviewed on a case-by-case basis).
Non-Refundable Fees: Original shipping charges are non-refundable unless the return is due to our error (defective product or incorrect shipment).
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:
Email: support@oneandes.com
Phone: (213) 316-8849 (Mon-Fri, 9 AM – 5 PM Pacific Time)
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.
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