Extended Life [7800mAh 11.1V 9cells] Laptop Battery for DELL Studio XPS 13 Series Studio XPS 1340 Series, fits P886C 0P891C 0T555C 312-0773 P891C T555C 312-0774 T561C Extended laptop battery for DELL Studio XPS 13 Series Studio XPS 1340 Series. Pls study the product desription below to make sure your original battery and laptop meet the compatibility of both the part # and models We are direct from manufacturer and all batteries are made of A grade cells. Shipping from OHIO, USA, 2 to 6 days delivery guarantee. High capacity battery certified by CE and RoHS. 100% OEM compatible! Warranty: 30-day money back & 1-year guarantee!