A breakout board with a CR1220 coin cell battery holder, an on/off switch, and 0.1″ pitch breakout pins. Ideal for powering very low-current projects or providing switchable battery backup for a real-time clock (RTC) module.

The board breaks out four pins: two ground pins, one switched power pin (controlled by the on/off switch), and one always-on power pin. Comes fully assembled and tested, with a stick of 0.1″ header included for breadboard use.

Key Features

• CR1220 Holder – Accepts standard 12 mm CR1220 coin cell batteries
• On/Off Switch – Control power to your circuit without removing the battery
• Switched & Always-On Pins – Two ground pins, one switched power, and one always-on power output
• Breadboard-Friendly – 0.1″ pitch header pins (included, requires soldering)
• Pre-Assembled – Battery holder and switch soldered and tested

Ideal For

• Battery backup for RTC modules with easy power control
• Low-power wearable electronics and LED throwies
• Prototyping projects needing a compact, switchable power source

Package Contents

• 1× 12 mm Coin Cell Breakout Board with On/Off Switch
• 1× 0.1″ header strip