Extra Wireless Qi Battery Pack for xLife Battery Case Compatible with Toyota Avalon, Camry, Lexus NX, Scion xB, Cadillac ATS, CTS, SRX, Escalade Chevy Tahoe, Suburban, GMC Yukon, Yukon Denali, Jeep Cherokee Wireless Charging. The xLife Extra Wireless Charging Battery Pack utilizes Qi Inductive Charging Technology that eliminates the need to attach a charging cable every time you want to charge your device. You can still use your device while charging, and your device is always accessible so you can answer a call without having to unplug. Built-in LED indicator light displays charging status.