... ---Technical Data:Output Voltage: 5V, 5.5V, 6V, 7V, 9V (jumper selection)Max output current: 20 AmpsInput: 6V-50.4V (2 ... .5V, 6V, 7V, 9V for selection by short-circuit plug (jumper wire).* Output double wires configured with a professional filtering magnet ... product performance, please cut off the battery first before the jumper selection of voltage, or it cause unwanted trouble.2) Although ...