Description
3×AA Battery Holder with USB-A Output and Switch
Portable holder for three AA cells with a USB-A female port, built-in on/off switch and sliding cover. The listing states an output of 3.6–4.5V depending on cell type. This is not stated to be a regulated 5V USB output; check the actual voltage and confirm the connected device can accept it.
Specifications
- Battery type: three AA cells, standard or rechargeable as listed
- Output: USB-A female; 3.6–4.5V as listed
- Switch: on/off
- Dimensions: holder 68 × 47 × 17mm; cable 90mm
Use
- Open the cover and insert three cells with the correct polarity.
- Close the cover and connect only a device compatible with the actual output voltage.
- Use the switch to turn power on or off.
The listing suggests simple circuits and Raspberry Pi Pico projects, but verify the board’s permitted supply pins and voltage range first. Never connect to a 5V-only input unless the measured output is within its limits. Do not mix old and new cells or different chemistries. Remove cells for storage.
