ATC&reg; New Li-ion 6 Cells 10.8V 4400mAh Replacement Laptop/Notebook Battery for/compatible with Toshiba Satellite 4400 M40-S359-S331 M115-S3104 M115-S3094 M110-S322 M50-S3262-S329 Tecra A7 A6 A5 A4 fits PA3399U-2BAS PA3399U-1BRS PA3399U-2BRS PA3399U PA3478U-1BRS PABAS057 PA3400U-1BRS Battery Type: 6 Cells Li-ion Capacity: 10.8V 5200mAh Color: Black Weight: 13oz Using highest quality materials including grade-A brand-new cells Meets and exceeds OEM specifications and lasts longer hours Package Includes: One unit of brand-new replacement laptop battery for TOSHIBA:K000021200,K000021210,K000021220 This product is CE & RoHS certified, so BUY WITH CONFIDENCE!!!