Note : 1. 10.8V and 11.1V are compatible, they are in common use. 2. The  6600mAh (9 Cells) battery will extend out about 1 inch from the bottom of the laptop. 3. These batteries are just plug and play, not require install any programs for use.  
                
                
                These brand new 4400mAh( 6 cells ) replacement 
Sony VAIO VPCCB27FDL batteries
                from SonyLaptopBattery.co.uk are made with high quality battery cells from Sanyo,
                100% compatible with your Sony VAIO VPCCB27FDL laptop. Our Sony VAIO VPCCB27FDL batteries are meet
                or exceed the original VAIO VPCCB27FDL laptop battery specifications since they are have
                passed international certification( CE, UL, ROHS, ISO9001/9002 etc.), and before
                they leave the manufacturer must passed the strict quality and safety testing( QA
                & QC), the battery shell was made of high quality environmentally friendly and fire-resistant
                materials. These batteries also have internal circuit boards with smart chips, which
                allows the VAIO VPCCB27FDL battery to communicate with the laptop to monitor battery temperature,
                performance and output voltage .
                
                
                Thank you for shopping 
Sony VAIO VPCCB27FDL
                    battery at SonyLaptopBattery.co.uk, before placing an order please to
                make sure the model(or part number) of this 
VAIO VPCCB27FDL battery can fit for your
                Sony laptop, you can to compare your old Sony battery with our battery pictures.
                We will check all VAIO VPCCB27FDL batteries' functions one by one carefully before delivery
                them in order to every function works well, since we understand the annoyances of
                dealing with defective products and need 100% Satisfaction Guarantee on our Sony
                laptop batteries.