Battery Type:Li-ion Capacity:47WH/3060mAh Voltage:14.8V. High quality built-in circuit protection board guarantee durable usage and safety. More than 500 recharge cycles for the life of the battery. Replace Part Numbers: PA5013U-1BRS, PA5013U, PA5013 Replacement For Laptop Model: Toshiba Portege Z835 Z830 Z930 Z935 Series Ultrabook Battery products have passed CE/FCC/ROHS certification to guarantee safety. Good performance A++ cells ensure fast charges and low power consumption. After-Sales Guarantee24 months warranty, replace a new battery for free if any quality problem. Please contact us on Message if any question, you will get a reply within 24 hours.