amsahr Replacement Battery for IBM/Lenovo 42T4963, ThinkPad 1838 10.1" Tablet, 42T4963, 42T4964, ASM 42T4964, ASM 42T4964, FRU 42T4963, FRU 42T4963 (2 Cell, 25WH) - Includes Cleaning Cloth Includes Soft Nonporous Microfiber Cleaning Cloth 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. 25WH, 7.4 Volts & 2 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