The myCharge Transit Plus Rechargeable 3000 mAh Battery comes pre-charged and ready to use to give you an extra 13 hours of talk time. The USB port delivers 2.4A output, when connected to a car adapter, to charge tablets and other high-powered devices. The four-light LED battery indicator lets you know how much power is available. High Efficiency Technology maximizes power to your device. High Density Battery gives you more power in a smaller footprint. Smartsense Technology identifies and charges any device. Fast Charging Technology shortens charge time by 25% or more. The built-in wall prongs and car adapter lets you recharge at home or on the go anywhere.