Rayovac launches Extreme Performance, a more powerful battery with superior life. “The Extreme Performance battery was specially created for high energy consumption wireless hearing aids, devices with low battery signal and instruments that shut off automatically in noisy environments,” says Randy Raymond, Vice President of Rayovac. The manufacturer has also developed a personalization program that allows Proline customers to engrave in gold letters on the packaging their logos, brands and contact information next to the Rayovac brand.