45+ Installing New Car Battery Background. Place your new battery in the battery tray (make sure your battery is fully charged). When you notice your car has trouble starting and the dash lights dim frequently, it might be time for a new battery.
Here's how to disconnect a car battery. Auto mechanic with multimeter voltmeter checking car battery voltage at mechanic shop. The higher the cca rating, the greater the starting power of the battery in.
Even one that is well maintained will begin to have problems starting.
With a small amount of investment, this. Connect and tighten the positive (red +) terminal first. Changing a car battery is easy. The average life span of a car battery is three to five years.