Fast chargers are devices designed to quickly recharge batteries, particularly in electric vehicles (EVs) and smartphones. They use higher voltage and current levels compared to standard chargers, significantly reducing the time it takes to restore battery power. For example, a fast charger can often recharge an EV to 80% in about 30 minutes, making it convenient for users on the go. These chargers come in various types, including Level 2 chargers for home use and DC fast chargers for public charging stations. Fast charging technology is continually evolving, with advancements aimed at improving efficiency and battery lifespan while minimizing heat generation during the charging process.