12 Cell Battery for Sony PCGA-BP4V, PCG-V505, PCG-Z1, VGN-B, Series LaptopsThis is a brand new Extended Run Sony replacement battery. This long run battery will run twice as long as the 6 cell battery that ships standard with your laptop. The added run time is achieved with an additional 6 cells inside the cartridge. This longer running battery will extend to the bottom of your laptop about 1 inch. Users of this battery pack experience an additional 1-2 hours of run time over the standard battery.Estimated run time with this battery is 3-5 hours. Longer run times can be achieved by minimizing the power use, especially the screen brightness.The superior South Korean cells inside the battery cartridge will provide longer run times between charges as well as a longer service life than cheaper batteries. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This means you can recharge your laptop any time without diminishing your battery capacity. This laptop battery replacement is typically superior to the original battery and is 100% compatible with your Sony laptop computer. The battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.Brand:Voltage:Battery Capacity:Battery Type:Cell Origin:Color:Warranty:Guarantee:Useful Life:Sony replacement computer battery11.1 Volts8800 mAh12 Cell Li-ion (6 cell SON-25)Samsung (South Korea)Black2 Year Warranty30 day full satisfaction guarantee300-500 recharge cyclesThe additional cells contained in this battery will protrude to the bottom of your laptop about 1 inch and add about 5 ounces of additional weight. The added height will also provide more space for air circulation and cooling underneath your laptop. The battery is designed to fit perfectly into your laptop and includes r
