ITEM NAME:5pcs-12mm Coin Cell Breakout Board CR1220 Button Battery Holder Module Bra AOA Descriptio n Description 100% new high quality Material: PCB Color: picture color Size: 25 * 15mm aperture: about 3mm Product list: 5 * button battery holder module, pin settings 1 12mm button battery breaker board CR1220 button battery holder installation module description: - Suitable for CR1220 button battery (12mm diameter), easy to disassemble -2.54mm contact pin for easy insertion into the breadboard (4 contact pins are soldered by the buyer) - High quality shrapnel for longer life - Simple but effective - This breakout board has a soldered CR1220 button battery holder and 0.1" pitch break pin for easy connection. Very low current power supply items, or adding battery backup circuits to a real time clock or similar. - Comes with a fully assembled and tested button battery holder and a 0.1" head so you can solder it and insert it into the breadboard. We offer you what you need! 5pcs-12mm Coin Cell Breakout Board CR1220 Button Battery Holder Module Brand new.1 12mm button battery breaker board CR1220 button battery holder installation module. - Simple but effective - This breakout board has a soldered CR1220 button battery holder and 0.1" pitch break pin for easy connection.