Extra Battery Needed - Suggestions?

For long flights, I often find I run out of power, long before the flight is over. Should I look at one of the battery tablets or just another Powerbook Battery?

Thoughts?

Mike

Id say another powerbook battery, just make sure the extra is always fully charged.

I got my extra batteries on ebay, Have a total of three batteries for my 17 inch and got two on ebay for a total of $60 bucks, they were used but they both hold more of a charge then my origional.

there is a really kewl pad that you put under your powerbook that basically has the power of 4 batteries in the one pad.. I can't remember the name of it, but if you google it you should be able to find it. Also I think OWC Other World Computing has powerbook batteries that are better than than the apple ones that last a lot longer.. a little more expensive, but worth it in my opinion.

Thanks!

Thanks for all your suggestions. I bought an extra Apple Battery (for now).....we'll see how that goes. I like the sounds of the tablet idea for longer flights. I guess if I could afford to fly first class....I could just plug right in!