Description Add 3V button battery as power source to your project. CR2030 provides up to 3V 210~225 mAh, and CR1220 provides up to 3V 38mAh power. Both button cells provide very low discharge rate that can work for 1-3 years. Board Features: One side battery holder for CR2032 and another side for CR1220 One ON/OFF switch Two large output soldering pads of battery Vbat and ground Each purchase is for one unit of the board. Schematic please see here.
