Do read the instructions on your device before installing batteries. Make sure to insert the batteries properly, following the symbols showing you the correct way to position the positive (+) and negative (-) ends of the batteries. Do replace batteries with the size and type specified by the device's manufacturer. Remove all used batteries from the device at the same time, then replace them with new batteries of the same size and type. Do store batteries in a cool, dry place at normal room temperature. Remove batteries from devices that will be stored for extended periods. Do batteries in a cool, dry place, away from heat, moisture and metal objects. Do replace all batteries at the same time Batteries Do get warm during charging and use-this is normal. As a precaution, most batteries and chargers are designed to protect against overheating. For longer life, charge your battery at room temperature (68°F to 72°F) Rechargeable batteries Do lose a percentage of their charge each day when left off the charger. Remember to recharge your battery a few hours before you want to use it. Do Keep battery contact surfaces clean by gently rubbing with a clean pencil eraser or cloth. Rubbing alcohol helps clear dirt and residue. Dirty contact points are a primary source of charging problems. Do keep batteries out of the reach of small children, who may be tempted to swallow them. Should such an accident occur, promptly take the child to a doctor.