Most laptops with long battery life are ultra-slim laptops. Other than Apple MacBook laptops (their battery can last up to 7 hours), there are very few full-featured laptops with good battery life. Apple MacBook laptops use lithium-polymer batteries (as opposed to common lithium-ion batteries).
Ultrathin laptops, on the other hand, were able to have great battery life thanks to their low-power processors. Right now, Asus, Toshiba, and Acer are the leading (Windows-based) brands when it comes to long battery life. The other major laptop brands don’t seem too interested in producing such models.
Asus UL-listed laptops: Currently, the Asus UL series of notebooks have been making a splash in the notebook market. They have beautiful designs and are so much fun to use. The batteries in these laptops can last between 7 and 12 hours on a single charge. One of the most popular models in this series is the 13.3-inch Asus UL30A-X5 laptop model.
Toshiba Satellite T135/T115: Another popular laptop series is the Toshiba Satellite T135 and T115 series of laptops. All laptops in this range also have impressive battery life. The T135-S1310, for example, can last up to 9+ hours on a single charge. Most of the notebook casings in this series have glossy finishes. They have very elegant side profiles and are also very affordable.
Acer Aspire Timeline: The Acer Timeline series is also another series of laptops with a long battery life. Although they are not as popular as Toshiba and Asus laptops, they still hold their own thanks to their competitive prices. Most Acer Timeline laptops have at least 8 hours of battery life.