If you’re always on the go and want a tablet that will last you the longest between charges, it looks like Apple’s iPad is the way to go. These results were gathered by Which? magazine, which is a the UK consumer site/organization/magazine. Check out the full results here for yourself. From experience, I can tell you that on my iPad, I can sometimes go weeks in between charges on normal usage. When I travel however, I usually only need to charge every few days.
[via Which?]
The Gamer With Kids 
I find I only need to charge my iPad every few days, even though I use it pretty much throughout the day – battery life is great!
Yes. I’m very happy with how long the battery lasts. 🙂