Gomadic High Output Home Wall AC Charger designed for the Zagg ZaggKeys PROfolio with Power Sleep technology - Intelligently designed with Gomadic TipExchange Advanced state-of-the-art internal circuitry protects the Zagg ZaggKeys PROfolio from power surges, overcharging, and short-circuiting, to significantly extend the internal battery lifecycle. Power Sleep"" feature reduces vampire power draw 99%. Charger will consume less than 0.1W of power when in ""dormant state"" (e.g. not connected to the Zagg ZaggKeys PROfolio). Gomadic Powerful High Wattage wall charger for home or travel use. Customized circuit design is based on the latest in power regulation and is tailored to the precise output voltage and resistor ID requirements of the Zagg ZaggKeys PROfolio (accurate to 0.1v!) A quality product intended to be the last home/travel charger you ever buy! This product is backed by the Gomadic Lifetime Warranty. TipExchange Technology protects your investment, by providing a means to change/upgrade your charger by simply swapping the physical charging tip. (Charging tip for Zagg ZaggKeys PROfolio) included with additional tips sold separately)