Alasicka 1-Slot USB Lithium Battery Charger – 18650 & More
Alasicka 1-Slot USB Lithium Battery Charger – 18650 & More
Alasicka USB Single-Slot Lithium Battery Charger
Keep your rechargeable lithium batteries topped up safely and efficiently with the Alasicka USB Single-Slot Lithium Battery Charger. Designed to be compatible with a wide range of popular battery sizes — including 18650, 26650, 16340, 14500, and 18500 — this compact charger is a must-have accessory for flashlight enthusiasts, vape users, and anyone who relies on rechargeable cylindrical batteries.
Key Features
- Universal Compatibility: Supports 18650, 26650, 16340, 14500, 18500, and similar lithium battery formats.
- USB Powered (5V Input): Plug into any USB port — laptop, power bank, wall adapter — for convenient charging anywhere.
- Smart Indicator Light: Red light during charging; switches to green when the battery is fully charged — no guesswork needed.
- Reverse Polarity Protection: Built-in protection prevents damage if a battery is inserted incorrectly.
- Overcurrent & Short-Circuit Protection: Comprehensive safety circuitry safeguards both the charger and your batteries.
- Anti-Overcharge Function: No need to rush to unplug — the built-in overcharge prevention circuit stops charging automatically when the battery is full.
- Compact & Lightweight: At just 12 cm × 2.5 cm × 3.5 cm, this charger slips easily into a bag or drawer.
- 55 cm Cable Length: Generous cord length for flexible placement near a USB source.
- ABS Construction: Durable, heat-resistant plastic housing for long-lasting everyday use.
Technical Specifications
| Input | 5V USB |
| Output | 4.2V / 1000 mA |
| Slots | 1 |
| Compatible Batteries | 18650, 26650, 16340, 14500, 18500 |
| Material | ABS Plastic |
| Dimensions | 12 cm × 2.5 cm × 3.5 cm |
| Cable Length | 55 cm |
| Connector | USB Plug |
| Battery Included | No |
What's in the Box?
- 1 × USB Single-Slot Lithium Battery Charger (battery not included)
Made in Mainland China.
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Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: Which battery sizes are compatible with this USB lithium battery charger?
A: This charger is compatible with a wide range of cylindrical lithium battery sizes, including 18650, 26650, 16340, 14500, and 18500 batteries. It is an excellent all-around single-slot charger for the most popular rechargeable lithium formats.
Q: How do I know when the battery is fully charged?
A: The slot features a built-in indicator light. It glows red while charging and switches to green when the battery is fully charged. You can also leave the battery in after it's full — the anti-overcharge function automatically stops the charging current to protect the battery.
Q: What power source do I need to use this charger?
A: The charger uses a standard 5V USB input, so it works with any USB wall adapter, laptop USB port, power bank, or car USB charger. The included cable is 55 cm long for convenient reach.
Q: Does this charger come with a battery?
A: No, this listing includes the USB charger only. Batteries are not included and must be purchased separately.
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.