Would you please ask Mr. UberGeek how to store more data without a PC available? Anyway to download to a USB drive?

On the battery, how many double AAs to recharge the unit?

I need to store 9 days of data (many of them long days) and 6 will be without power available.

So, does the unit tell you to "turn here, stupid" or do you have to be looking at the screen? How do you use it to follow a new route?

Please tell Mr. UberGeek thank you.