Automatic battery charger appliance with volt-metric relay and amper-hour meter. (Machine-translation by Google Translate, not legally binding)

摘要

Automatic battery charger with voltmetric relay and ampere-hour meter that is characterized by comprising a main battery, an emergency battery and a contactor system that puts them in series automatically in the event of power failure of the network, with object to compensate the voltage decreases because the voltage given by the rectifier is somewhat higher than that of the main battery. (Machine-translation by Google Translate, not legally binding)