Duracell Coppertop batteries give you the freedom to enjoy the use of your appliances by giving you a product you can rely on. TIPS FOR PROPER BATTERY CARE AND USE: Always use the correct size and type of battery specified by the device manufacturer. Keep battery contact surfaces and battery compartment contacts clean by rubbing them with a clean pencil eraser or a rough cloth each time you replace batteries. Remove batteries from a device when it is not expected to be in use for several months and while it is being powered by household (AC) current. Make sure that you insert batteries into your device properly, with the + (plus) and – (minus) terminals aligned correctly. CAUTION: Some equipment using more than three batteries may appear to work properly even if one battery is inserted incorrectly. Extreme temperatures reduce battery performance. Store batteries in a dry place at normal room temperature. Do not refrigerate Duracell batteries as this will not make them last longer, and avoid putting battery-powered devices in very warm places. Do not attempt to recharge a battery unless the battery specifically is marked “rechargeable.” Some depleted batteries and batteries that are exposed to extremely high temperatures may leak. A crystalline structure may begin to form on the outside of the battery.