Get a replacement Acer Extensa laptop batteries at a price far lower than Acer and you won't notice a difference in speed or battery life. Our specialty is producing OEM equivalent Acer Extensa laptop battery replacements that fit perfectly and perform the same as the original at a fraction of the price. Each Acer Extensa battery replacement we produce is made with name brand Lithium Ion battery cells from Sony, Panasonic, Sanyo and Samsung. For one low price you get an Acer Extensa laptop battery, a 30-day money-back guarantee and one whole year of replacement protection. Compare the price and quality of our Acer notebook batteries and the price of a new Acer brand batteries and you'll see that you can get the same or better quality laptop battery for a lot less than buying name brand batteries.