One method that remains popular to improve smartphone and tablet battery life among some Android device users is the app killer, also known as the task killer. (lifewire.com)
Some have predicted that tablet battery lives will improve, but for a number of years they do not appear to have gotten better than the 1 hour = 10 % of battery storage. (goodereader.com)
We haven't had it long enough to do a complete battery rundown test on it, but in practice, we believe you'll get average tablet battery life out of it: between 7 and 9 hours, depending on what you're up to. (digitaltrends.com)