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There are two links to save $0.50 off Rayovac Batteries. I believe you can find certain packs for as low as $1.00 at Walmart.

• 50¢ any one (1) package of Rayovac Alkaline Batteries. Unlock when you complete 1 Rayovac activity.
• $1.00 any one (1) package of Rayovac Alkaline Batteries. Unlock when you complete 1 Rayovac activity.