Make the good times last with Rayovac Fusion Premium AAA Batteries. The most powerful alkaline battery from the #1 value brand in the world, Rayovac Fusion delivers maximum performance to high drain devices. These advanced alkaline triple A batteries are engineered with a Universal Power system 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. An Enriched Core provides a longer battery life to keep your devices running—and increases dependability to last up to 12 years in storage. The patent pending Micro-Separator provides more room for active ingredients while its synthetic design increases reliability. With all that energy inside, these advanced Rayovac AAA batteries are ready to power the devices you use each day.