After opening the latch on the right side of the camera, youwill see that it has 4 battery slots. For maximum battery life,we recommend using 4 lithium AA or alkaline AA batteries.Please be sure to insert each battery with correct polarity(negative or“flat”end against the long spring of each batteryslot).When you use extral DC , you must use dc 6V/1A or over 1Apower adapater. We recommend using 6V/2A.Insert the SD card ( OFF mode ) before beginning to operate thecamera. SD card is supported up to maximum 64GB capacity.7KEEPTIMEPower SupplySD Card