Recharging Automotive Air Conditioning

Recharging Automotive Air Conditioning

You’ll notice in the springtime, many car repair shops start offering deals on recharging automotive air conditioning, so it will be ready to handle the summer heat. But, what exactly is recharging the AC? Is it required, like a regular tune-up or oil change? Does my car AC really need to be recharged? Is this just a scam mechanics pull on unsuspecting customers?