When you’re on the move, you don’t want to worry about scrambling for an outlet. That’s why we designed the IdeaPad S540 with up to 10 hours of battery life. If you do need to recharge, it won’t take long. The IdeaPad S540’s RapidCharge gives you 2 hours of use with just a 15-minute charge, and 70 percent capacity in just an hour.