Need car charger for thinkpad R400

Can anyone tell me what would be a good car charger to get for a lenovo thinkpad R400 thats around 50 dollars or less?? Nobody in the lenovo forum knows. And if there is nothing available I need to know so I can refuse delivery of this laptop Thanks in advance.

 

You can use your current power adaptor if you were to buy a power inverter.
A power inverter takes the 12volts which comes out of the cigarette lighter port and inverts it to 120VAC. Than you just plug your power adaptor into the inverter and you are good to go.

Vector makes great power inverters. I have had mine for over 5 years and never had any problems:
70watt:
http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_996451_996451

you can always buy a higher watt power supply if you need.
To figure out how many watts you laptop needs, look at the power adaptor. Multiply the amperage and the voltage to figure out the wattage needed. 70-100 watts should be more than enough for most laptops

By the way it doesnt work in toyota's

K-TRON

 

doesnt work in toyotas??????

nned posts to post link

need posts to post link.
fwenfwer fwernfrwefnrwe

 

I am just joking, it will work in your car
Your username led me to believe you owned a toyota

K-TRON

 

I think I will be purchasing one of these. Not sure how to figure out the wattage needed for my NP2096 though. Here is what the adapter says:

Input: 100-240V~1.5A 50-60Hz
Output: 19V - 4.74A

What am I supposed to be multiplying?

 

you just need a power inverter capable of powering your adapter adapter.
for a regular 15.4 with no vid card, you need about 75watts
with a vid probably about 100watts

heres how it goes:

laptop > adapter > inverter > car 12v(car lighter)

 

19V x 4.74Ampere = 90.06 watts.
Since the power adaptor is not 100% efficient I would look for a power inverter rated for 150 watts or so.

K-TRON