110V/125V/220V Battery chargers (with size:600x800x2200mm) and OPzV batteries,nickel cadmium batteries are used for 15MW-60MW power plants,10KV-500KV power substations,national grid,petroleum,electric power,thermal power,hydropower station,substations for breaker closing,signal control,remote communication,chemical,metallurgy,coal,paper making,machery,wine,textile,building materials,ect.
https://youtu.be/y_YbJ7GhPVc
https://youtu.be/3p4Aopd_Trg