Amsahr Replacement Battery for IBM ThinkPad W700, W700ds, W701, W701ds, W700 2500, 2541, 2542 - Includes Stereo Earphone Includes Stereo Earphone with Microphone and ONE Compatible Laptop Battery 18 Months Manufacturer Warranty, 100% Compatible Non-OEM : Lithium Ion (Li- ion) Long Life Battery: Rechargeable with No Memory Effect and Power Surge Protection. 6600 mAh, 10.8 Volts & 9 Cell Protective Retail Packaging, Each Product is Sealed with Anti-Static Shield Sleeve. Exclusive Offering of High Performance, Long Lasting, and Durable Grade A Cell Battery Includes Stereo Earphone with Microphone and ONE Compatible Laptop Battery 18 Months Manufacturer Warranty, 100% Compatible Non-OEM : Lithium Ion (Li- ion) Long Life Battery: Rechargeable with No Memory Effect and Power Surge Protection. 6600 mAh, 10.8 Volts & 9 Cell Protective Retail Packaging, Each Product is Sealed with Anti-Static Shield Sleeve.