Battery chargers are rechargeable electronic devices for use in electric vehicles, electric tools, electronic games, notebooks, digital and small portable electronic devices and electronic appliances, generally by the Shell, the power conversion part, the charge detection part, the charge protection part and so on. Its output type is pure DC or pulsating DC. According to the connection can be divided into wall-style and desktop. According to the types of rechargeable batteries can be divided into nickel-cadmium battery charger, nickel-hydrogen Battery Charger, nickel-zinc Battery Charger, lead-acid battery charger, lithium battery charger. According to the function of chargers can be divided into special chargers and general chargers.
