Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: What is the average life of the Nook HD?
Document: I bought a Nook HD 7&#34;  for my wife for Christmas. She has a Nook Color but the battery life is getting too short. She loves the newer version. She wanted the 7&#34; rather than the larger screen version.
It is too bad that the Nook HD hasn't received more kudos. To be honest, I knew it had a great screen, a fast proce fast processor, great battery life, and oh so light and easy to handle. But, I did wait for a means for rooting the Nook HD to become available. Now the tablet lives up to all its potential. Rooting is quite easy and it is a great tablet
Arrived quickly and well packaged. Nook is very easy to use and the picture quality is super! Hope the battery life is as described--that was my only beef with my old Nook.
The battery life is about 20 minutes on a good day. It is the worst decision I ever made to buy this piece of crap.
Great product and value for the money! Battery life lasts several days, and accessing internet and apps/books is so simple.
Many customizable features! This is an excellent reader and small tablet! Very easy to use. I have two of these and my family not only reads more but enjoys doing so, anywhere, anytime. Keeps a charge for long reading life.
I am someone who can read like 2-3 books at one time, I have had a sony PRS-505 for years now and would not give it up for my life. Recentley i purchased a tablet and really enjoyed that you could read books with a backlight and in color, beacause of that i went on the hunt for a color ebook.
This is a really nice item. With the way I use it, the battery life lasts for several days of reading and browsing the web. Magazines on this screen are amazing, I especially like reading Time because of the outstanding photography they do. Books look great, and the selection of games on the Barnes and Noble store is alright.
So, either way, you probably can't lose.EDIT: Barnes and Noble opened up the stock software to be able to use almost all of the apps in the google play store. So, I don't use my custom ROM at all, because of the better battery life and just overall fit and finish of the Barnes and Noble stock software. It's a great tablet!
I know it is a competitor, but Nook HD weighs 11.1 oz. It is a light weight reader and comfortable to use.
Answer: We have had ours for over three years so far and no serious battery issues like the original nook. We went through 5 in two years