inputs.text: not completely reliableworked 75 time - bought kensington adapter long haul asia flights used 4 long flights worked fine 3 4 flights last flight light looked like everything working laptop indicated plugged power eventually drained laptop quit 4 hours laptop came fine got home suspect charger cannot always keep although dell d600 latitude not power hog laptopanother complaint obviously kensington designers never actually tested plug adapters plane adapters long stick straight dell plug goes back notebook designed right angle plug back notebook person seat front leans back not room pc plug get jammed seat front youthe ehempower aircraft cord short 12 inches ok seat except adapter naturally gets tucked seat crack defeating purpose short cord dangle air ventilation cooling much impose neighbor ask use power port not seats ports often want ask nearby person favor ehempower cord longer unit could make floor not get neighbors wayso unit works 75 time design flawsi would give oknot great small heavy standard dell adapter