ZWXJ New L13M4P21 Laptop Battery (7.4V 34Wh 4600mAh) for Lenovo IdeaPad Yoga 2 11 Series 121500223 L13M4P21 L13L4P21 Brand New from Manufacturer. Rechargeable Up to 500 times over life of battery. Battery type : Li-polymer Battery, Voltage : 7.4V, Capacity : 34WH CE-/RoHS-/FCC- Certified and Built-in circuit protection ensure both safety and stability. Fit for : Lenovo IdeaPad Yoga 2 11 Series 100% CUSTOMER SATISFACTION GUARANTEE: We believe in Quality and Customer Service, and our top priority is to make you happy. If for whatever reason you are not fully satisfied please CONTACT US and well guarantee to help. We have 12 months warranty on our products. Voltage7.4V Capacity34Wh Battery type : Li-polymer Battery