Advanced Rapid Wall AC Charger Compatible with Novatel Mifi 4620L - Amazingly powerful home charge design built with Gomadic Brand TipExchange Advanced state-of-the-art internal circuitry protects the Novatel Mifi 4620L 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 Novatel Mifi 4620L). 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 Novatel Mifi 4620L (accurate to 0.1v!) Specification: Input Voltage (100 - 240vAC), Cable length (50 inches), Transformer Dimensions (2.0 X 1.75 inches), Foldable Adapter (Yes), Circuit Design (Novatel Mifi 4620L Specific) TipExchange Technology protects your investment, by providing a means to change/upgrade your charger by simply swapping the physical charging tip. (Charging tip for Novatel Mifi 4620L) included with additional tips sold separately)