Energizer A76 / LR44 Batteries provide reliable power to your important gadgets. These mini batteries are compatible with a variety of devices, including your keyless entry system, heart rate monitors and glucose monitors. Reach for these small batteries when you need replacement calculator batteries or new batteries for watches, toys or games. Similar in size to silver oxide batteries, these miniature alkaline button batteries contain zero mercury to reduce environmental impact. Count on Energizer, the #1 brand of specialty batteries, to deliver dependable, long lasting power to your devices.