Genuine Toshiba Satellite P500 Qosmio X500 Battery PA3729U-1BRS A000051270PA3729UCompatible Models:Satellite P500,Satellite P505,Satellite P505D,Qosmio X500,Qosmio X505, The Toshiba Primary Battery Pack is a 6-cell, rechargeable, Lithium Ion battery designed to work with select Toshiba Satellite and Qosmio series portable computers. Used as either a spare or replacement battery, this battery pack meets or exceeds the specifications of the original battery that came with your notebook. It interfaces with the TOSHIBA Power Saver Utility on the notebook which features a charge indicator to help you monitor the available power.Take your office on the road without sacrificing performance, productivity or convenience with Toshiba Notebook battery packs. Battery power gives you the ability to use your computer around the house, office, on campus and when traveling. Enhanced battery life helps you stay connected and productive wherever your work takes you.Features: * Snaps in and out of battery slot in seconds * Genuine Toshiba quality and reliability * Meets or exceeds original battery * Additional battery pack provides extended power to work and play without worriesSpecification: * Capacity: 10.8V x 4000 mAh * No. of Battery Cell: 6-cell * Dimension & Weight: 3.78” W X 8.18” L x 0.89” H; 0.82 lb * Compatible with select Toshiba Satellite P500, P505, P505D series portable computers and select Qosmio X500, X505 series AVPCs that came with Primary 6-Cell Battery Pack (Part#: PA3729U-1BRS) * RoHS compliant * In the box: Toshiba Li Ion Battery Pack, EU Declaration and Safety Instruction Manual