How To Tell When Car Battery Is Fully Charged. Attach the 12-volt car headlamp to the positive and negative - terminals of the battery. On the 12 amp charging setting the needle will settle at around 6 amps or just under.
In the past batteries used to come dry and the distributors would have to fill them with acid. If the battery holds a charge when its not connected to the car its not faulty. Attach the 12-volt car headlamp to the positive and negative - terminals of the battery.
These simple devices tell you all you need to know about the battery guide you as to when to stop charging.
On the 2 amp setting the needle will settle near the end of the small red triangle. If you set the value to 163-164 V then the battery will be fully charged in about a day at 16 V during the same time the charge will reach 95-97 at 15 V 85-90 at 144 V 0 75-85. These simple devices tell you all you need to know about the battery guide you as to when to stop charging. If you dont have a multimeter to tell you the voltage of your battery you can do a test of your electrical system by starting the.
