Health and Safety Information131• Battery charging times depend on the remainingbattery charge, the type of battery, and thecharger used. The battery can be charged anddischarged hundreds of times, but it willgradually wear out. When the operation time(talk time and standby time) is noticeably shorterthan normal, it is time to buy a new battery.• If left unused, a fully charged battery willdischarge itself over time.• Use only Samsung-approved batteries andrecharge your battery only with Samsung-approved chargers. When a charger is not in use,disconnect it from the power source. Do not leavethe battery connected to a charger for more thana week, since overcharging may shorten its life.• Extreme temperatures will affect the chargingcapacity of your battery: it may require cooling orwarming first.• Do not leave the battery in hot or cold places,such as in a car in summer or winter conditions,as you will reduce the capacity and life-time ofthe battery. Always try to keep the battery atroom temperature. A phone with a hot or coldbattery may temporarily not work, even when thebattery is fully charged. Li-ion batteries areparticularly affected by temperatures below 0 °C(32 °F).• Do not short-circuit the battery. Accidental shortcircuiting can occur when a metallic object (coin,clip or pen) causes a direct connection betweenthe + and – terminals of the battery (metal stripson the back of the battery), for example whenyou carry a spare battery in a pocket or bag.Short-circuiting the terminals may damage thebattery or the object causing the short-circuit.
