4• Do not charge the battery near fires or under direct sunlight!If the battery’s protection circuit is damaged, the battery maycharge at extreme current (or voltage) and an abnormal chemicalreaction may occur. The battery may generate heat or smoke,rupture, or burst into flame.• Use only the specified charger and observe chargingrequirements!If the battery is charged in unspecified conditions (under hightemperature over the regulated value, excessive high voltage orcurrent over regulated value, or with a remodelled charger), itmay overcharge or an abnormal chemical reaction may occur.The battery may generate heat or smoke, rupture, or burst intoflame.• Do not pierce the battery with any object, strike it with aninstrument, or step on it!This may break or deform the battery, causing a short-circuited.The battery may generate heat or smoke, rupture, or burst intoflame.• Do not jar or throw the battery!An impact may cause the battery to leak, generate heat orsmoke, rupture, and/or burst into flame. If the battery’s protectioncircuit is damaged, the battery may charge at an abnormalcurrent (or voltage), and an abnormal chemical reaction mayoccur.• Do not use the battery pack if it is damaged in any way!The battery may generate heat or smoke, rupture, or burst intoflame.• Do not solder directly onto the battery!If the insulator is melted or the gas release vent or safety functionis damaged, the battery may generate heat or smoke, rupture, orburst into flame.• Do not reverse the battery polarity (and terminals)!When charging a reversed battery, an abnormal chemicalreaction may occur. In some cases, an unexpected large amountof current may flow upon discharging. The battery may generateheat or smoke, rupture, or burst into flame.