18650 Lithium Battery Charger – 12.6V 2A / 21V 1A for 12V & 18V Power Tools

Keep your cordless screwdrivers, wrenches, and other 18V/12V power tool battery packs charged and ready with this compact, intelligent 18650 Li-Ion Battery Charger. Featuring automatic charge termination, a built-in LED status indicator, and a wide universal AC input, this charger is a practical must-have for any workshop or toolbox.

Made in Mainland China.

Key Features

Dual Output Options: Choose 12.6V / 2A for 12V Li-Ion packs, or 21V / 1A for 18V Li-Ion battery packs — perfect for a wide range of cordless power tools.
Intelligent Auto-Stop: Red LED indicates charging in progress; switches to green and automatically stops when the battery is fully charged — no overcharging, no guesswork.
Universal AC Input: Accepts AC 100–240V, 50/60Hz — compatible with EU and US wall outlets right out of the box.
DC 5.5mm × 2.1mm / 2.5mm Plug: Standard barrel connector fits most compatible 12V and 18V battery packs.
CE & RoHS Certified: Meets internationally recognised safety and environmental compliance standards.
Lightweight & Compact: Weighs approximately 100g — easy to store in your toolbox or carry to job sites.
Display Screen Included: Visual charging status at a glance.
Patented Design: Built for reliable, consistent charging performance.

Specifications

Input	AC 100–240V, 50/60Hz
Output – Option 1	21V / 1A (Voltage: 18V–22V, Current: 0–1A)
Output – Option 2	12.6V / 2A (Voltage: 10.8V–13V, Current: 0–2A)
Max Output Power	≤37.5W
DC Plug Size	5.5 × 2.1mm / 5.5 × 2.5mm
Charger Plug	EU / US
Gross Weight	Approx. 100g
Certification	CE, RoHS
Compatible Batteries	18650 Li-Ion battery packs (12V / 18V)

Important Note

This charger is designed specifically for 18650 Li-Ion battery packs as described above. Output voltage and current values are dynamic and will vary based on the battery's current charge level. Performance may differ when used with other electronics due to device impedance. Battery is not included.

What's in the Box

1 × Li-Ion Battery Charger

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For guidance on the safe use and handling of lithium-ion batteries, refer to the U.S. Consumer Product Safety Commission – Lithium-Ion Battery Safety.

Learn more: Battery charger

Frequently Asked Questions

Q: What battery types is this 18650 lithium battery charger compatible with?

A: This charger is designed for 18650 Li-Ion rechargeable battery packs rated at 12V (using the 12.6V / 2A output) or 18V (using the 21V / 1A output), commonly found in cordless screwdrivers and wrenches. It is not intended for use with NiMH, NiCd, or other battery chemistries.

Q: How do I know when the battery is fully charged?

A: The LED indicator shows a red light while charging is in progress. Once the battery reaches full capacity, the indicator turns green and the charger automatically stops — protecting your battery from overcharging.

Q: Does this charger work with both EU and US power outlets?

A: Yes. The charger accepts universal AC input of 100–240V at 50/60Hz, making it compatible with standard EU and US wall sockets. Please ensure the DC plug size (5.5 × 2.1mm or 5.5 × 2.5mm) matches your battery pack's connector before use.

Q: Is the battery included with the charger?

A: No, the battery is not included. This listing covers the charger unit only. Please ensure your existing 18650 Li-Ion battery pack is compatible before purchasing.

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

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