Make the good times last with Rayovac Fusion premium AAA Batteries. The most powerful AAA alkaline battery from Rayovac, Rayovac Fusion delivers maximum performance to high drain devices. These advanced alkaline triple A batteries are engineered to provide optimal performance in a wide variety of devices. Use these high performance Rayovac batteries in the most power-hungry devices, including your wireless microphone, video game controller and high-powered toys. With all that energy inside, these advanced Rayovac AAA batteries are ready to power the devices you use each day.