This 4-pack set (40 batteries total) of LR44 alkaline button cells delivers a steady 1.5V and 153mAh, supporting up to 730 hours of continuous use. Each 0.45 x 0.21 inch cell is a direct replacement for remote controls, quartz watches, wall and desk clocks, calculators, heart rate monitors, glucose meters, digital thermometers, and blood pressure cuffs. Built with a stainless steel body and a leak-proof sealed structure, these non-mercury batteries resist corrosion and keep your small electronics running reliably, backed by a 5-year shelf life so you always have a fresh cell on hand. Every battery ships individually sealed in blister packaging with a swallow-proof design, keeping kids and pets safe while letting you pull out just the one you need without exposing the rest of the pack. Cross-compatible with LR44, CR44, SR44, 357, AG13, A76, PX76, 675, and L1154 equivalent codes, this set fits nearly any device that calls for an LR44-style cell. Store in a cool, dry place and never attempt to recharge.