The First Amendment, sometimes called Amendment 1, is the first amendment to the United States Constitution and is also one out of ten amendments in the Bill of Rights.
Replace the battery-Place the new battery where you just took the old battery out, with the positive and negative terminals on the correct sides. Connect all the screws, clamps or bars that may hold the battery in place. 3. Reconnect the positive terminal-Tighten the clamps using a wrench. Finally, you should check the alternator. 2  Some cars also have a battery meter, with the engine running, the alternator usually maintains a charge close to 13.8-14.2 volts in a properly functioning charging system.
Car battery voltage. 12 volts is the standard automotive battery in todayâs vehicle and each of the battery has 6 cells with a voltage of 2.1. A fully charged car battery has 12.6 volts. There is a very big difference when a car battery drops even a small amount of voltage. When a car drops, for instance, from 12.6 to 12.0, there will be 75% difference. Its power drops from 100% to 25%. At 12.4 volts, a car battery is 75% charged while at 12.2 volts its 50% charged. Consider your car battery charged at 12.4 volts or higher and discharged at 12.39 volts or less.