Highly-efficient safe storage battery charger

The utility model relates to a charger, in particular to a highly-efficient safe storage battery charger. The highly-efficient safe storage battery charger is provided with a power supply input module, a rectification filtering module, a main power module, a relay, an output module, a control module and a voltage feedback module, and is characterized in that the power supply input module is connected with the rectification filtering module, the rectification filtering module is connected with the main power module, the main power module is connected with the relay, the relay is connected with the output module, and the control module is connected with the main power module, the relay, the voltage feedback module and the output module respectively. The highly-efficient safe storage battery charger disclosed by the utility model is provided with an indication lamp and a loudspeaker, and the loudspeaker and the indication lamp are respectively connected with the control module. Compared with the prior art, the highly-efficient safe storage battery charger can effectively avoid the damage of a storage battery and a charger caused by the reverse connection or the short circuit of batteries and has the remarkable advantages of reasonable structure, convenient use, safety, reliability and the like.