power supply - CR1632 (3v) vs. Two AA's - Electrical Engineering Stack Exchange
Amazon.com: 4X EEMB AA 3Volt Lithium Battery Non-Rechargeable 3V CR 14505 1800mAh Single-Use Li-MnO₂ Battery UL Certified DO NOT Charge Battery for Security Cameras/Digital Thermometer/WiFi Oil Tank Guage : Health & Household
Amazon.com: EEMB AA 3Volt Lithium Battery Non-Rechargeable 3V CR 14505 CR14505BL 1800mAh Single-Use Li-MnO₂ Battery for Security Cameras/Digital Thermometer/WiFi Oil Tank Guage : Health & Household