Mobile Printers

How can i get power to a notebook and mobile printer when I am on a bus for over 5 hours?

My laptop drains battery life in under an hour. I need to take a 5 plus hour bus ride today and need to keep power coming to the notebook so that I can continue to work. I also want to buy a mobile printer for the ride and want to give power there as well. So I am looking for like a small power box that i can plug 1 or two plugs into that would give power without being plugged into a car lighter, wall outlet, etc. Thanks for your help

Public Comments

1. get 5 batteries fully charged
2. Buy a fully charged car battery, and a set of crocodile clips leads to a car lighter socket type outlet. Also buy a 12V lead for laptop and printer. But you should have thought avbout all this WAY befopre the day you travel !
3. Buying 5 charged batteries would work for the laptop, but what of the printer? The only suggestion I would make is to see if you can find a mobile printer that can draw power from the laptop. If you can, get more than 5 batteries.