Battery Charger Gembird BC-USB-03 USB Compatible AA AAA Black

USB battery charger for AA/AAA batteries. A compact 4-slot charger compatible with 1–4 Ni‑MH or Ni‑Cd rechargeable AA or AAA cells. The charger operates from any standard 5V/2A USB power adapter (adapter not included) and features LED indicators to show charging status. Typical charging time is 4–6 hours depending on battery capacity.

Advantages

The charger supports both AA and AAA rechargeable batteries and accepts 1–4 cells, allowing flexible use. Built‑in protection prevents short circuits and reversed polarity, improving safety during charging. LED indicators provide clear, easy‑to‑read status information. USB power input makes the charger compatible with common 5V/2A adapters and power banks.

Key specifications

How to use

Insert 1 to 4 rechargeable AA or AAA batteries into the slots, ensuring correct polarity. Connect a 5V/2A USB power adapter or power source to the charger. Monitor the LED indicators to determine charging progress. Once charging is complete, disconnect the USB power and remove the batteries. Do not attempt to charge non‑rechargeable batteries.

Recommendations

Use a compliant 5V/2A USB adapter or a compatible power bank. Charge only Ni‑MH or Ni‑Cd rechargeable batteries and avoid mixing new and old cells or different capacities in the same charging session. Keep the charger and batteries away from excessive heat and moisture.