What Voltage is a 15 Volt Battery Dead?
A 15 volt battery is considered to be dead when its voltage drops below 12.6 volts. Batteries are typically rated at 12 volts, with a range of 10-12 volts considered to be fully charged. When the voltage drops below 10 volts, it is considered to be discharged or dead. Batteries are typically made up of several cells, with each cell having a voltage of 1.5 volts. The cells are connected together in series to give the required output of 12 volts....