When you buy an hp battery youre buying trust you cant see whats inside you arent there when the battery is built you trust hp to eliminate the risks for you hp delivers a rigorously tested safety inspected and quality assured battery every time power when you need it powers your notebook so you can watch a movie update facebook surf you tube play games or catch up on work for your on the go life this battery reliably grants you up to 3 5 7 5 hours of battery life to keep y