Smart Battery Charger AA AAA 18650 21700 Coin Cell – USB

$41.26 USD $51.75 USD

Charge Every Battery You Own — One Smart Charger Does It All

Meet the Alasicka Multifunctional Smart Battery Charger — the all-in-one charging solution for virtually every rechargeable battery in your home or workspace. Whether you need to top up everyday AA/AAA cells, powerful 18650 cylindrical batteries, or compact coin-cell lithium batteries, this intelligent charger handles them all with ease. Made in Mainland China.

Wide Compatibility — One Charger for All Your Batteries

3.7V Lithium-Ion Cylindrical: 18650, 18490, 18350, 17670, 17500, 21700, 16340
1.5V Lithium-Ion: AA, AAA, Type-C format
3.6V / 3.7V Li-Ion Button/Coin Cells: LIR2032, LIR2032H, LIR2450
1.2V NiMH / NiCD: AA, AAA, AAAA

Stop cluttering your drawers with multiple chargers. This single unit replaces them all.

Intelligent Charging with Full Safety Protection

The built-in smart charging circuit automatically detects your battery type and applies the optimal charging current — so your batteries are always charged correctly and efficiently. The clear LCD display screen lets you monitor charging progress at a glance.

Every slot is independently protected with a comprehensive six-layer safety system:

✅ Short Circuit Protection
✅ Overcharge Protection
✅ Over-Discharge Protection
✅ Overvoltage Protection
✅ Overcurrent Protection
✅ Temperature Protection

Charge with total confidence, whether you're topping up flashlight batteries or high-drain cells for cameras and electronics.

Convenient USB-Powered Design

Powered by a standard 5V 2A USB input, this charger can be used with any USB power adapter, power bank, or laptop — ideal for home, office, or travel use. Quick-charging technology gets your batteries ready faster without compromising their longevity.

Compact & Practical

Dimensions: 128mm × 65mm × 45mm
Working Temperature: 5–35°C
Certification: CE Certified
Colour: Grey / Black
In the Box: 1× Smart Battery Charger + 1× USB Data Cable (batteries not included)

Frequently Asked Questions

Q: What battery types does this smart charger support?

A: This multifunctional charger supports a wide range of rechargeable batteries, including 3.7V lithium-ion cylindrical cells (18650, 18490, 18350, 17670, 17500, 21700, 16340), 1.5V lithium-ion AA/AAA/Type-C, 3.6V–3.7V coin cells (LIR2032, LIR2032H, LIR2450), and 1.2V NiMH/NiCD AA, AAA, and AAAA batteries.

Q: Does the charger work with a standard USB adapter?

A: Yes! The charger runs on a 5V 2A USB input, making it compatible with most USB wall adapters, power banks, and computer USB ports. A USB cable is included in the package.

Q: Is it safe to leave batteries charging unattended?

A: The charger features six built-in protection mechanisms — including overcharge, overvoltage, overcurrent, short circuit, over-discharge, and temperature protection — to keep your batteries and home safe throughout the charging process. The smart circuit also automatically stops charging when cells are fully charged.

Q: Does the charger display charging status?

A: Yes, it features an integrated LCD display screen that shows real-time charging status for each battery slot, so you always know exactly how your charge is progressing.

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.