Sounds like you’ve got some good neighbors, even if you’ve got a lousy car battery! Unfortunately, an extended warranty does not cover the car battery.
An example of “wear and tear” items not covered under warranty might include:
While parts covered under an extended warranty might include:
In the case of a defective battery, this is usually covered initially under the “bumper to bumper” warranty that comes with your vehicle. By the time your extended warranty kicks in, enough time would have passed to realize if your battery was defective.