Notices and Safety Instructions 1.Install batteries into the charger correctly by making sure the +/-pole of battery matches the +/- pole of the charger. 2.The charger can charge each battery independently, 3.The charger must be used at an operating temperature of 0-35C. 4.New battery will reach its best performance after 3-5 times of charge-discharge cycles. 5.Battery power will lose because of long-time storage, please charge the battery fully before using it again. 6.Please cut off the power supply after the batteries are fully charged. 7.It's normal that the battery becomes hot while charging. It will cool down to normal later, please feel free to use it. 8.DO NOT charge non-rechargeable batteries or other types of batteries. It may cause battery leakage, battery explosion, personal injury, and etc. 9.DO NOT charge batteries whose covers are damaged, or it may cause short circuit and a fire hazard. 10.Place this charger out of reach of children. Children should use this charger under supervision of adults.