ZTHY TECH offers brand new quality 100% compatible replacement batteries for Uniwill laptops and Acer netbooks. ZTHY batteries available for all popular laptop brands and models. Not all laptop batteries are created equal. ZTHY TECH uses the finest materials available. The good quality plastics, circuit boards and grade "A" cells. Our Uniwill laptop batteries are the good quality available guaranteed or your money back! Our products are all 100% new and completely compatible with the manufacturers’ original brand requirements. They will not void your warranty. Each Uniwill laptop battery comes with its own One Year Warranty, so you simply cannot lose.