Adafruit
2 x AA Battery Holder with On/Off Switch JST PH Connector
A slim 2×AA battery holder with a built-in on/off switch and genuine JST PH connector. Two AA batteries in series provide approximately 3V — ideal for poweri...
A slim 2×AA battery holder with a built-in on/off switch and genuine JST PH connector. Two AA batteries in series provide approximately 3V — ideal for powering low-voltage electronics projects, microcontrollers, and portable builds without needing to disconnect the battery to turn off power.
The JST PH connector polarity matches Adafruit's Li-Ion/LiPo batteries and 2-pin JST cables, so it plugs straight into boards with JST PH battery inputs. This is also a great upgrade for micro:bit projects — the on/off switch means you don't have to unplug the connector to power down, and AA batteries last significantly longer than the AAA cells in standard micro:bit battery packs.
Key Features
- On/Off Switch – Conveniently control power without disconnecting
- Genuine JST PH Connector – Correct polarity, smooth fit in JST sockets
- Slim Form Factor – Compact holder for portable and wearable projects
- Standard AA Batteries – Widely available, long-lasting power
Specifications
- Battery Type: AA (not included)
- Cell Count: 2 (series)
- Output Voltage: ~3V nominal (alkaline), ~2.4V nominal (NiMH rechargeable)
- Connector: JST PH 2-pin
Ideal For
- micro:bit projects (replaces AAA battery pack with longer-lasting AAs)
- Adafruit boards with JST PH battery inputs
- Portable electronics and wearable builds
- STEM education and classroom projects
Package Contents
- 1× 2×AA Battery Holder with On/Off Switch and JST PH Connector
Jargon buster
Plain-language definitions for the technical terms used above.
- JST PH
- A small keyed plug-and-socket connector with 2 mm pin spacing, often used for low-power electronics connections. You need the correct JST PH cable, and its current rating limits how much power should be passed through it.
- LiPo
- A lithium polymer rechargeable battery commonly used in portable electronics projects. It matters because LiPo batteries need correct charging circuitry and care, and this board includes hardware intended for that battery type.
- pH
- A measure of how acidic or alkaline a liquid is, on a scale where 7 is neutral. For a water monitoring kit, pH tells you about water chemistry and whether the included probe matches the range and accuracy your project needs.
Find this product in
Power & Batteries
Related Tutorials
Free guides on learn.littlebird.com.au
