Duracell Silver Oxide Button Batteries provide reliable, long-lasting power for your specialty devices. They have up to a 4-year guarantee in storage so you can be confident these silver oxide button batteries will be ready when you need them. Duracell Silver Oxide Button Batteries are great for devices like glucometers, calculators and car remotes. And you can be assured that they’re batteries you can trust because Duracell is the #1 trusted battery brand. Battery Features Duracell's 376/377 Silver Oxide Button batteries provide reliable, long lasting power for your electronics and more. Long Lasting Power: Duracell coin batteries are engineered for long lasting performance. Guaranteed for 4 years in Storage: Duracell Silver Oxide Button Batteries are guaranteed for 4 years in storage. This Duracell 376/377 Silver Oxide Button Battery is equivalent to SR66, SR626W, 376, 377, S626SW, D377, D376, V377, SR626