2006-08-25 17:41:42 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
I have an "inverter" that converts the power from the better to a voltage the laptop can use. It basicall transforms the battery source into one that is like a household plug on the wall.
2006-08-25 17:50:38 · update #1
Let's be conservative, err on the side of caution, assume your laptop uses 50 watts and your inverter is 50% efficient. Then you're drawing 8 amps from a 12 volt battery. A fully-charged car battery in reasonable condition holds at least 80 amp-hours of charge, so 10 hours minimum.
2006-08-25 18:31:44 · answer #1 · answered by zee_prime 6 · 0⤊ 0⤋
I wouldn't recommend hooking your laptop up to the converter. You may break your laptop.You need to get one of those direct DC plugs that go into a cigarette lighter. No telling what comes out of those converts. You may damage your battery. The manual for the converter should tell you something.
2006-08-25 18:46:22 · answer #2 · answered by DoctaB01 2 · 1⤊ 0⤋
you want the present and voltage criteria of the computing device, and the Amp-hour means of the battery. An get mutually, the computing device takes 18 volts at 2 amps. that's 36 watts. If the vehicle battery is totally charged and has a means of 70 amp-hours. x 12 volts, that's 840 watt-hours. you'll choose a DC-DC converter to rework 12 volts to 18 volts. assume that's has ninety% performance, so that you've 756 watt hours of means. 756 watt-hours / 36 watts = 21 hours. .
2016-11-27 22:02:24 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Lots of factors, condition of the battery, CCA rating of the battery, size of inverter. Not enough info provide to answer
2006-08-26 01:51:37 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Depends on if the car is started periodically or not. But I wouldnt do it more than a day if the car isnt running. Also depends on how new your car battery is
2006-08-25 17:43:30 · answer #5 · answered by steelerguy92868 2 · 0⤊ 0⤋
about 30-40 minutes
2006-08-25 21:29:33 · answer #6 · answered by merdad b 2 · 0⤊ 0⤋
yah but it would kill your laptop maybe
2006-08-25 17:46:32 · answer #7 · answered by Jazz_cullen 2 · 0⤊ 0⤋