Need more energy? Fusion is Rayovac’s longest lasting battery, here to deliver a boost of power. The energy-dense formula excels in the high-drain devices you use every day. Fusion is Rayovac’s longest lasting battery. No Alkaline Battery Lasts Longer. Designed to prevent damaging leaks and tested twice prior to shipment to ensure reliability. Lasts longer in today’s most power hungry devices** including high-powered toys, video game controllers, and wireless headsets.
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