Gomadic High Output Home Wall AC Charger designed for the Sony Reader PRS-505 with Power Sleep technology - Intelligently designed with Gomadic TipExchange Advanced state-of-the-art internal circuitry protects the Sony Reader PRS-505 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 Sony Reader PRS-505). 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 Sony Reader PRS-505 (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 Sony Reader PRS-505) included with additional tips sold separately)