Specifications for PORMIDO Hardwire Kit Cable Lengh: 3.5 Meters Output: 5V 3.0A Input: 12V 1.5A Voltage Cut-off Options: 11.3V(L),11.8V(M), 12.1V(H) Default Cut-off Voltage: 11.3V(L) Please set up High 12.1V(H) as the cutt off voltage, then your battery will never be dained out.