How to power three servomotors and an Arduino UNO using a single 12-volt battery - Quora
Low Battery Cutoff For 6V Batteries Using 555 IC
New 6V 4AA 4xAA battery holder with JST connector for arduino A2TM | eBay
Powering Arduino With a Battery (with Pictures) - Instructables
Finished building my Arduino Bluetooth car using: 4 TT gear motors 6v motors - Arduino uno - motor controller shield L293D - 9v battery - HC 05 Bluetooth module and a switch :) : r/arduino