Fast Charge Wall Chargers are engineered rugged and built to outlast. This 45W wall charger is powered by GaN technology, giving you higher efficiency by generating less heat and a form factor that is smaller than ever — all while providing maximum power. Like all OtterBox Wall Chargers, this charger is drop tested and wrapped in a tough exterior for years of use. Thoughtfully designed with industry-leading mobile expertise and proven quality that is uniquely durable, these tough wall chargers are designed to work flawlessly together with OtterBox cases, screen and power accessories.