Smooth, Efficient, and Durable:This ag13 lr44 battery provides smooth, efficient energy for your small electronics devices. Keep your gadgets supplied with high capacity (and low discharge) and all times for a longer-running time. With a 3 year shelf life, you can keep this battery pack fresh without ever having to worry about leaks. The AMVOLT 24 pack battery pack is designed to operate conveniently and last long so you get more value for your money.Safe, Environmentally-Friendly: Button Cell Batteries: These ag13 button cell batteries designed to keep your devices going without compromising their safety, AmVolt button cell batteries are integrated with multiple protections. The insulated packaging protects the positive polarity from negative polarity to prevent short circuiting and other common bulk battery packaging problems. This set is multi-certified by CE, UL, and RoHS, so you can keep your devices going worry free. Keep your devices – and Mother Nature - safe with this environment-friendly pack that doesn't contain any harmful chemicals. Precautionary Measures: 1.Wipe battery clean with dry cloth and install correctly after confirming the +/- ends.2.Do not recharge these batteries or throw them into a fire.3.Do not keep in an environment where the temperature exceeds 185 degrees Fahrenheit (or 85 degrees Celsius).4.Do not force discharge your batteries.5.Keep your battery pack in a cool, dark and dry place.6.Keep these batteries out of children's reach.