Do Car Batteries Charge Themselves. Otherwise jump start the battery using either a battery pack found at all auto part discount stores and many big box stores such as Walmart or a good Samaritans juiced-up battery. Alternators arent designed to charge your cars battery.

Once the engine is running the alternator take charge and provide power for the entire cars electrical system. Car batteries are usually treated as fit-and-forget items only getting any attention when they go flat or malfunction in some other way. The short answer to this question is no.
Answer 1 of 6.
Lead-acid batteries self-discharge at 5 per month while unused so it is best practice to buy the newest one you can find. The plates in your car battery are made up of a soft spongy alloy of lead hung on a harder metal lattice. The short answer to this question is no. Electricity makes the motor spin and turn the wheels bringing the car.

