Read the instructions that come with the battery charger, as each charger operates a little differently. Step 3: Attach the battery charger to your vehicle's battery terminals.

For those who park outdoors, away from a power source, there are solar-powered battery maintainers. These connect to the car ...

When parking your car for an extended period, Consumer Reports says, it is smart to use a car battery charger to make sure the car can start when you need it.