Acer Iconia Tab 8 higher capacity battery?

Hi everyone. I have owned this Acer tablet for about a month now. No complains whatsoever. Really good performer. Only major downside so far is the short battery life.
I have been trying to find a higher capacity battery for this tablet or a way to increase battery life. While typing this I have started wandering with the idea of rooting this device to see if there is any battery life improvements.
Well, in the meantime, it would be great to find a higher capacity battery somewhere around.
Thanks for any response.

Unlocking and rooting Acer Iconia A700 tablet

Hi

I have an Acer Iconia A700 tablet which I would like to unlock and root.
I have downloaded the sdk ( Android Studio) for my pc from https://developer.android.com/sdk/index.html
What other file(s) could you reccomend for a successful root?
Or, another unlock and root procedure?

Thanks
Marty
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Sent from my SS Galaxy Note 10.1 - Omni rooted
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