My laptop power brick says input is 100-240 volts @ 1.6 - 0.8 Amps. and output is 16 volts @ 4.5 Amps so with an expected input of 160-192 Watts and an output at 72 Watts I believe I am well within the normal limitations of a 12-15 volt car system with a 15 Amp fuse (180-225 Watts minus inefficiency in the inverter).
Cliff says he runs a more power hungry laptop and another small device off of the Duracell inverter and he's fine.
So I'm going with the Duracell (130W continuous, 175W peak) unit because it is made hopefully by a very reputable company with what I hear is modern solid-state electronic and it is relatively inexpensive. I'm told it is very quiet, almost silent, and it is very very small. Tons of people like it, and I think it is what I'm looking for for now. The WAGAN stuff looked great but is well beyond my needs and price range for their good stuff. The cup-holder ones would be good for folks with normal cars. For me, none of the cars we own have good cup-holder designs for this sort of thing. When you see how small the Duracell unit is you'll see why I chose it.
Last edited by BenFenner
on 2012-05-25
at 22-06-03.