The Weltool MC1S Portable USB-C Li-ion Battery Charger is an advanced and compact charging solution designed for users who demand reliability, efficiency, and portability. Specially crafted to meet the needs of modern rechargeable battery users, the MC1S is compatible with a wide range of 3.6V and 3.7V Li-ion, IMR, INR, and ICR batteries. It supports popular sizes including 10440, 14500, 16340, 17335, 17500, 17670, 18350, 18500, 18650, 18700, 20700, 21700, 22650, 25500, and 26650, making it incredibly versatile for powering flashlights, personal devices, and other electronics that rely on cylindrical rechargeable batteries. However, it is important to note that the MC1S does not support charging protected 20700 and 21700 batteries, ensuring safe and accurate operation.

Designed with user convenience in mind, the Weltool MC1S features a modern USB Type-C charging interface, offering faster and more stable power delivery compared to older micro-USB designs. The charger package includes a high-quality Type-C charging cable, allowing users to immediately connect to a variety of power sources such as wall adapters, laptops, or portable power banks for effortless charging anywhere.

The operation of the Weltool MC1S is remarkably simple and intuitive. To begin charging, users only need to connect the charger to a power supply and insert a compatible battery into the slot. The device automatically starts the charging process without requiring any manual adjustments or button presses. This auto-start functionality ensures a seamless experience for users of all experience levels, making the MC1S an excellent choice for both beginners and professionals.

A standout feature of the MC1S is its 0V activation function, which revives over-discharged batteries that would otherwise be unusable. When a deeply discharged battery is inserted into the charger, the MC1S will automatically attempt to reactivate it within the first ten minutes. This function not only extends the lifespan of rechargeable batteries but also provides users with an additional level of value and convenience by restoring batteries that might otherwise be discarded.

The status of the battery and charging process is clearly communicated through a simple yet effective LED indicator system. When the indicator shows green, it signals that the charger is in standby mode or that the battery is fully charged. A red light indicates that the charger is actively charging, activating a deeply discharged battery, or addressing a short circuit. If there is no light, it means that either the power supply is not connected or the battery has been inserted with reversed polarity. This straightforward system keeps users informed at every stage of the charging process and ensures that issues are immediately noticeable and easy to address.

From a technical perspective, the Weltool MC1S operates with an input of DC 5V at 1A and provides a constant charging current of 1A to the battery. The cut-off voltage is precisely controlled at 4.2V with a tolerance of ±0.05V to ensure safe and complete charging. The charger automatically terminates the charging process once the current falls below 120mA, thereby protecting the battery from overcharging and optimizing its longevity. These smart charging parameters ensure that every battery is charged efficiently and safely without risk of damage.

Built to perform under typical environmental conditions, the MC1S is designed to operate within a temperature range of 0 to 40 degrees Celsius, making it suitable for use in a variety of indoor and moderate outdoor settings. Whether charging batteries at home, in a workshop, or on the go, users can rely on the MC1S to deliver consistent performance.

Compact and lightweight, the MC1S is highly portable, making it easy to carry in a pocket, backpack, or gear bag without adding unnecessary bulk. Its durable construction ensures that it can withstand the demands of daily use while continuing to provide safe and efficient charging for a wide range of battery types.

In summary, the Weltool MC1S Portable USB-C Li-ion Battery Charger offers a perfect blend of intelligent charging features, wide battery compatibility, fast and safe operation, and extreme portability. Whether you are a flashlight enthusiast, an outdoor adventurer, or simply someone who uses rechargeable batteries in your daily devices, the MC1S is a must-have tool for keeping your batteries charged, protected, and ready for action. With its modern Type-C interface, intuitive design, and robust safety features, the MC1S stands out as an essential addition to any battery maintenance setup.

Apply to:
3.6V/3.7V Li-ion/IMR/INR/ICR
10440 14500 16340 17335 17500 17670 18350 18500 18650 18700 20700
21700 22650 25500 26650
Note: Can not charge protected 20700/21700 batteries.

This charger has a Type-C charging interface, including a charging cable

Operation:

1. The Charge Function: Connect power supply and insert batteries, it will automatically start charging.

2. 0V Activation Function: Insert batteries, revivable batteries will start charging within 10 minutes.

3. Indicator Color Meaning

• Green: standby/fully charged

• Red: charging/activating/short circuit

• No Light: power supply unconnected/polarity reversed

Specification:

SHIPPING
The final shipping cost and estimated delivery timeframe will be available to you during checkout. Currently, we offer 3 International shipping methods which are steady and easy to track. Priority worldwide shipping, Premium ( Partial countries) and a faster Express shipping. The estimated times stated below are not guaranteed. An international package could experience delays like postal strikes or severe weather or Cov-19 situation. All shipping ways, PO Box address is not acceptable.

If you don’t receive your order within the estimated time frame provided below and suspect that it might be lost in transit, please contact Flashlightgo Support ( support@flashlightgo.com ) and we can look into the order with the courier. Lost-in-transit requests must be submitted to Flashlightgo Support within 3 months of the date of shipping or before the courier archives the tracking information.

Option 1.
Express by DHL/UPS/Fedex/Aramax/SF etc ( there may be tax need to pay in this way),
The estimated time of delivery is usually 3-7 work days depending on the country. Includes detailed tracking and confirmation of delivery.

Option 2.
Premium ( 6-10days, All tax and Duty Paid),
All tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.

Option 3.
Priority shipping(1-2 Weeks, average 10 days)
If we marked it is with all tax and duty paid, all tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.

Learn more,Please click on here.

To ensure that you get the desirable product, we allow a seven-day product return period. Any product return application outside this period will not be entertained.
All returned product must be unused and the original package should be kept.

Return：
We do not offer return for personal products like socks and hats or food, magazine and fragile or dangerous products The original receipt must be available for application of return.

Discount products：
No product return for discount products

Gifts products：
If the item is marked as a gift when purchased and shipped directly to you, it cannot be exchanged , refunded or warranty.

Exchange：
We only replace items if they are defective or damaged.
Exchange service are offered only to wrong deliveries or product damage not caused by client. If needed, please email to info@flashlightgo.com.

Warranty
How long is the warranty period?
Flashlightgo warrants to the original purchaser that the Product(s) shall be free of any defect in material or workmanship for a period of one year for labor and one year for parts from the date of the original order except the items listed below:
Chargers,Batteries and Other Accessories: 3 months warranty

Should the Product(s) supplied by Flashlightgo prove defective because of improper workmanship or material as reasonably determined by us, Flashlightgo agrees, at its option, to either repair or replace the Product free of charge, excluding any shipping or handling charges.

Learn more,Please click here.