Battery, Power & Charging

An Attaky runs off its Power module and charges over USB-C. This page is the everyday guide; for the module's full specs, see its datasheet.

Charging

• Charge through the Core's USB-C port — the same port you flash and use the serial console from. Any standard USB power source works.
• The shipping Standard Cell is a 1000 mAh battery. Give a new device a full charge before its first long session.
• It's fine to use the device while it charges.

Runtime

How long a charge lasts depends mostly on what the build is doing — a screen-on retro session, a transmitting radio, and an idle device draw very different amounts. Wireless features (Wi-Fi, Bluetooth, and especially a transmitting LoRa or FM radio) and screen brightness are the biggest factors, and firmware sleep behaviour matters too. Treat published numbers as a guide and expect real runtime to vary with use.

Power buttons

The Core's POWER button (top edge) is a hardware power switch — long-press (~2 s) to turn the device on or off, going through the power path directly so firmware can't override it. The Core can run off USB power alone, so it works on USB without the Power module.

• If your build has a Power module, it has its own power button on its edge, also a long-press. To run on battery it has to be on too — and since it supplies the power, turn it on first and off last.
• A quick press of POWER is a normal button the firmware can use — for sleep, backlight, or menus, depending on what you've flashed.

Battery safety

The Power module uses a standard rechargeable lithium cell. Common-sense care applies:

• Charge from a normal USB source; don't leave it charging unattended for long periods.
• Keep it out of extreme heat and don't puncture, crush, or open the module.
• If the battery is visibly swollen or damaged, stop using it.

See also

• Power: Standard Cell — the module manual
• Unbox & First Boot — first charge and power-on