Each Power Activator requires four AA 1.5 V Alkaline batteries. Use a Philips cross-head screwdriver to install them.
Carefully turn your Power Activator upside down. Turn your Phillips screwdriver to the left to loosen the screws and remove the battery plate, and then insert four batteries into your Power Activator, making sure the positive and negative ends are facing in the correct direction as indicated in the battery compartment. Once the batteries are installed, put the battery plate back in place and secure the screws by turning the screwdriver to the right.
Your Power Activators may stop working before the batteries are completely dead. Always have a spare set of batteries ready in case of emergency. A good recruit is always prepared for any eventuality in battle.
As well, if you use disposable batteries and they no longer power the Activators, don't throw them away! Try them in a different household device – they may have some power left!
The Avengers Labs recommends that you ask an adult for help when removing and installing batteries.