CWK New Replacement Laptop Notebook Battery for Toshiba Tecra M11-S3421 M11-S3422 M11-S3430 M11-S3440 M11-S3450 A11-S3510 TECRA A11-S3511 TECRA A11-S3512 Toshiba PABAS221 PABAS222 PABAS223 Tecra Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 10.8 Volt (11.1 Volt compatible) Capacity: 5200mAh (Better than 4400mAh) 90 Day Money Back. Buy with confidence!