Power Inverter for Late 09 Macbook Pro

[bully worm]

I'm going on vacation in a week and need a power inverter to power my late 09 macbook pro.

How much wattage does the MBP consume in order for it to be powered and charged in a car?


Will this product be ideal?

http://www.frys.com/product/5909744?site=sr:SEARCH:MAIN_RSLT_PG

Thanks for the help!