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Unread 16-03-2010, 21:21
eugenebrooks eugenebrooks is offline
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Re: Power your Classmate PC with this cable

More efficient, yes.
More compact, yes.
Safer, yes as there is nothing over 20 volts.

You can buy a 12vdc-20vdc converter from www.powerstream.com,
make sure that you get the 5.5mm-2.5mm plug and exceed 2 amps,
and then change the cig plug for a battery connector.

Or, you might drop into Radio Shack and buy the
iGo anywhere NetBook charger, which has both a
110 volt and a 12 feed, RS part number 273-377

Lots of teenagers playing with inverters makes worry about safety!

Eugene



Quote:
Originally Posted by ErichKeane View Post
Hmm... wouldn't it be more efficient (not having to deal with the AC->DC->AC conversion) to keep it DC?

One end has the same battery connector, the other has the barrel connector for plugging in directly to the laptop. In the middle, all you need is a simple 12v->20v converter, which is a little bit of circuitry: http://english.cxem.net/car/car4.php