If you've left something running while it's charging, yeah, it'll periodically turn on and do stuff --
Battery use doesn't sound way out of norm. 4-5 hours. . .especially if it's games and such rather than just reading. . . . You can improve it by making sure things are OFF when you're no longer playing them and not running in the background, and turning the screen brightness down some.
Battery use doesn't sound way out of norm. 4-5 hours. . .especially if it's games and such rather than just reading. . . . You can improve it by making sure things are OFF when you're no longer playing them and not running in the background, and turning the screen brightness down some.