Smart 18650 Lithium Battery Charger – EU/US Plug DC3.5 DC5.5
Smart 18650 Lithium Battery Charger – EU/US Plug DC3.5 DC5.5
Alasicka Smart 18650 Lithium Battery Charger – EU & US Plug Compatible
Keep your flashlights, headlamps, and other lithium-powered devices always ready to go with the Alasicka Smart 18650 Lithium Battery Charger. Designed for 3.7V/4.2V lithium-ion batteries, this compact, direct-charge smart charger supports both DC3.5mm and DC5.5mm connector styles (flat and round), making it versatile for a wide range of devices. With built-in smart charging protection and a clear LED indicator system, charging is safe, simple, and automatic.
Made in Mainland China.
Key Features
- Universal Voltage Input: Works with 110V–240V AC power, compatible with both EU and US plug standards — perfect for home use or travel.
- Smart Auto-Stop Charging: Automatically stops charging when the battery reaches full capacity (4.2V output), preventing overcharging.
- LED Status Indicator: Red light activates during charging; switches to green when fully charged — no guesswork required.
- Built-In Protections: Anti-overcharge, anti-short circuit, and high-stability circuitry ensure safe, reliable charging every time.
- Wide Compatibility: Suitable for 18650 lithium-ion batteries with capacities from 500mAh to 5000mAh, used in strong flashlights, headlamps, and other electronics.
- Multiple Connector Options: Available in flat DC3.5mm, round DC3.5mm, flat DC5.5mm, and round DC5.5mm plug configurations to match your device.
- Compact & Durable Design: Measures just 60×22×65mm — lightweight and wear-resistant for everyday convenience.
- CE Certified: Meets European safety and quality standards.
Specifications
| Brand | Alasicka |
| Input Voltage | 110V – 240V AC |
| Output Voltage | 4.2V |
| Output Current | 350mA |
| Output Power | ≤37.5W |
| Connector Types | Flat DC3.5mm, Round DC3.5mm, Flat DC5.5mm, Round DC5.5mm |
| Compatible Batteries | 18650 Lithium-Ion (500mAh–5000mAh) |
| Plug Type | EU / US |
| Dimensions | 60 × 22 × 65mm |
| Certification | CE |
| Charging Duration | 1–8 hours (varies by battery capacity) |
What's in the Box
- 1 × Smart 18650 Lithium Battery Charger
Note: Batteries and other accessories are not included.
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Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What battery types are compatible with this 18650 smart charger?
A: This charger is designed specifically for 3.7V/4.2V 18650 lithium-ion batteries with capacities ranging from 500mAh to 5000mAh. It is ideal for batteries used in flashlights, headlamps, and similar electronics with DC3.5mm or DC5.5mm charging ports.
Q: How do I know when my battery is fully charged?
A: The charger features a built-in LED indicator: the red light turns on while charging is in progress, and it switches to green when the battery is fully charged. The charger also automatically stops charging to prevent overcharging.
Q: Is this charger compatible with both EU and US wall outlets?
A: Yes! This charger supports a wide input voltage range of 110V–240V AC, making it compatible with both EU and US electrical standards. Simply select the appropriate plug version for your region.
Q: What connector sizes does this charger support?
A: It is available in four connector configurations: flat DC3.5mm, round DC3.5mm, flat DC5.5mm, and round DC5.5mm. Be sure to match the connector type to your device's charging port before ordering.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.