What Voltage Is Needed To Charge A 12v Battery. If it can put out more current than the battery can take then the battery may overheat. What is the car battery charging voltage.

A fully-charged 12-volt battery allowed to rest for a few hours or days with no load being drawn from it or charge going to it will balance out its charge and measure about 126 volts between. At the time of exploitation this parameter is between 137 to 147 volts. Record voltage on voltmeter.
A meter reading of 122 volts or 120 volts will indicate a charge rate of 50 percent and 25 percent respectively.
For a 12-volt battery the voltage measurement between those two terminals should be between 11 and 13 volts the closer the measurement to 13 the closer the battery to being charged. If we assume its just monitoring voltage it might take longer to get to the trigger voltage but when it did the HV battery would need to dump a lot. Battery voltage reacts highly to charging and discharging. At 124 volts a car battery is.

