Amnergy New Battery PA3730U-1BRS PA3729U-1BRS for Toshiba Qosmio G60 X500 X505 Satellite P500 P505 Laptop; 12 Cells 8800mAh Amnergy Brand Battery Is Designed Using the Best Cells and Latest Safety Features to Work as a Perfect Replacment for the Original Battery. Guaranteed to Meet or Exceed Original Specifications. Premium Quality, 100% OEM Compatible. Brand New, Protective Retail Packaging, Each Product is Sealed with Anti-Static Shield Sleeve. Lithium Ion (Li- ion) Battery, Rechargable with No Memory Effect.