Toshiba PA3817U-1BRS Battery 48Wh, 4400mAh Meets and exceeds OEM specifications and lasts longer hours This product is CE & RoHS certified, so BUY WITH CONFIDENCE!!! Package Includes: One unit of brand-new replacement laptop battery for Toshiba PA3817U-1BAS, PA3817U-1BRS This product is CE & RoHS certified, so BUY WITH CONFIDENCE!!!