Hybrids tend to have better fuel efficiency, since they use more electric power and less gas at lower speeds. And their batteries don’t have to be plugged in–they get recharged entirely by regenerative braking.
The same maintenance for a traditional combustion engine model applies for hybrid powertrains, with additional EV specific checkups when going in for your routine service appointment. Follow your intervals as listed in the supplied owner's handbook. If you are considering going HEV and want to learn more about this topic, please connect with a Hyundai Dealer for details.
A hybrid battery pack doesn’t have to be plugged into an outlet. Instead it’s charged by the gas engine and through regenerative braking, which captures energy during braking or deceleration and turns it into electricity.