Long life batteries last a minimum of four hours if used according to the manufacturer’s specifications, while extra-long life batteries can last five hours or more if used correctly. While most major manufacturers offer long life batteries, only a few makers, such as HP and Lenovo, offer extra-long life batteries.onclusion. For many on-the-go users, laptop battery life is one of the most important factors to consider when purchasing a new computer. All of the most popular laptop manufacturers, including HP, Apple, Toshiba, and Lenovo, offer models that provide more than four hours of battery life when used to run simple tasks.