amsahr Replacement Battery for Dell Latitude E6420, E5420, E5420M, E5430, E5520, E5520 BRC, E5520M, E5530, E6420 ATG, E6430, E6430 ATG (9 Cell, 6600mAh) - Includes Mini Optical Mouse Includes Mini Optical Mouse with Retractable USB cord 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. 6600mAh, 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