Instruct: Classify the given review into positive or negative sentiment.
Query: Horrible Battery

I got this combo because of the range but failed to heed the warnings about the battery life. The battery life is horrible! With my TV in the living room, I can use the mouse from the street out front my house, sure... but it really will be dead after 1 hour of use and 23 hours of standby. Forget to put it on the charger before you go to bed? Dead every time.The keyboard is much better in terms of battery life, but it seems to buffer your key presses and send them all at one time when it feels like it, maybe 2-3 seconds worth of buffering. Sometimes it will also lose those buffered keystrokes. I'd say i get about 90% of my typing through when going at 75wpm. Not good at all for serious use.I had a logitech combo before and the mouse and keyboard would each last 3 months or more, even with game playing on the mouse and essay writing on the keyboard. And the logitech always sent the keys I typed, when I typed them. The range on the logitech wasn't as good, though.