This is a brand new Genuine Sony Vaio VGP-BPSC27 sheet battery. The battery is only 1/2 inch thick and covers the bottom of your laptop. It effectively doubles your battery run time in combination with your internal battery.
This battery uses lithium-ion cells which feature longer run times between charges as well as a longer service life than cheaper batteries.
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.
The BPSC27 sheet battery is 100% compatible with your Sony Vaio notebook computer. The battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 1 year warranty.
You can expect an additional 3 - 4 hours of run time with this Vaio Extended Sheet Battery when new, depending on your energy use.
This battery Only fits the Vaio Z and Z2 Series of laptops.