Does your Sony Vaio laptop computer have the model number VGN-FZ31ER and you need a replacement battery or an OEM Sony laptop charger If so, USB Phone Word is the best site to buy these components. The ideal replacement battery for your laptop is our silver Sony B-728 BP-T18 battery for B7016. These six-cell batteries are 11.1V and have a capacity of 5200mAh/49Wh. These batteries use the latest lithium ion technology and they are 100 percent OEM compatible. They are also silver which matches the silver casing of Sony Vaio laptops. Quality is essential for all of the products at USB Phone World and these batteries are no different. Our batteries are guaranteed to meet or exceed OEM specifications and they are backed by a one-year warranty that is included with your purchase. Three year warranties are also available for purchase. Sony Vaio laptops are solid computers with large hard drives, ample RAM and very good dual-core processors. Battery life with the original batteries and the 5.75 pound weight of these laptops are two negatives, particularly if you are comparing these 2007-era computers with laptops produced today. New replacement batteries will not help with the weight concerns, but battery life will be better. Our new replacement batteries are hands-down higher quality than the original cells. While the original six-cell batteries provided about two hours 50 minutes of charge time, our new replacement six-cell batteries should provide over three hours of charge time.
Its one thing to provide high-quality products, but if the prices are high and the customer service is shoddy, customers will not shop or return. USB Phone World believes in providing extremely good customer and very reasonable prices in addition to excellent products. All of these factors have made USB Phone World a leading site for laptop replacement batteries and battery chargers.