. "Newegg is a retailer that is sure to offer huge savings for customers especially their 72 hour Pre-Black Friday sale that lasts until Thanksgiving. read moreHP designed a laptop with 32 hours of battery lifeBy: anglewhite | LaptopsWhen Hewlett-Packard engineers begin designing a new laptop, they bring in the battery experts like John Wozniak on the very first day." . . .