Customer ServiceRest assured with 30 days Refund and 12 months Warranty; Note: return windows will close after one month, dont worry about it, you can click on seller store on right corner ask a question and contact seller directly. Basic DetailsItem Model: L15L4PC2 ; Battery Type: Li-ion; Voltage: 7.6V; Capacity: 53Wh/6974mAh; Battery Color: Black;(The positive and negative poles of the cable will not affect the use). Compatible P/N L15L4PC2 5B10K90802 L15M4PC2 5B10K90778 Compatible Laptop ModelsFor Lenovo Ideapad Yoga 710-14IKB 710-14ISK 710-15IKB 710-15ISK Series. NoteThe package includes: 1*battery and 1*Instructions. Packaged by sponge or bubbles to prevent damage. Before purchasing, please open the back cover of the laptop to confirm the battery model and shape.