carnetix and laptop question helpp - Page 2

racerboy0712 · 01-20-2007, 04:22 PM

ok but is it possible to hook up a dc-dc converter...say from 19V to 14V to the cnx1900....or is it possible to connect an inverter to the cnx1900

MikeH · 01-20-2007, 04:26 PM

Please take a look at this thread...

http://www.mp3car.com/vbulletin/show...75&postcount=3

racerboy0712 · 01-20-2007, 04:28 PM

hm when will that be complete....and im curious..what does "program jumpers" does that mean ill have to buy something seperate?

Ruffy · 01-20-2007, 04:34 PM

its possible but wastefull. You're laptop should handle 12v just fine. Go find a car adapter for your laptop instead of getting the carnetix if it truly requires 14V. It'll be cheaper in the end. Car adapter $20-80.

Then if you do get the carnetix it would provide power for your screen and your usb devices.

Don't use an inverter. They're innefficient. Noisy, And throw of EMF/EMI like crazy. Trust me I have a hardwired inveter in my car right now and its terrible. Going from DC(Car) to AC(Inverter) Back to DC is retarded.

But as I said your laptop should be able to handle 12 volts. Most laptops have a wide voltage range of 3 volts up or down. The power adapter for my laptop got lost. Got a replacement. The on I have is 2 volts under what the factory one was. Still works just fine and it's made specifically for my laptops model #.

racerboy0712 · 01-20-2007, 04:40 PM

sorry for the noob question but, is the only way to find the laptop's power output from online or a manual or is there something on teh computer that tells me.

also, if i plug in my gps reciever to my laptop, does that mean the Volts usage goes up?...and what if i use a docking station...does that have the same voltage need as the computer

racerboy0712 · 01-20-2007, 04:45 PM

http://h18000.www1.hp.com/products/q.../11455_na.html

that is where i am looking

also, http://www.notebooksupplies.com/compaq/evon1000v.html

is that what you mean by car adapter...would it be possible to hook this up the cnx1900 or where would i splice to give this power....the ACC where the ignition is? or the cig lighter

Ruffy · 01-20-2007, 06:12 PM

Quote: Originally Posted by racerboy0712

http://h18000.www1.hp.com/products/q.../11455_na.html

that is where i am looking

also, http://www.notebooksupplies.com/compaq/evon1000v.html

is that what you mean by car adapter...would it be possible to hook this up the cnx1900 or where would i splice to give this power....the ACC where the ignition is? or the cig lighter

yes a car adapter comes with a cigarette lighter 12v plug for easy use in a car. It's reccomend you cut that plug off and hardwire it into the car instead. It basically has a built in dc-dc conveter/regulator built in.

To have it turn on when the car is on takes some work. You wouldnt want to connect it directly to the battery or it would drain the battery when the car wasen't on.

Best bet it to setup a relay that's trigger when the car is on.

racerboy0712 · 01-20-2007, 06:32 PM

ok wow, so i just looked at the back of my laptop it says input voltage 18.5V and 4.9A......so im thinking thats the rigth one lol....and now im going to go with the p1900....thanks guys and sorry!