【Replacement Battery Type】L20C4P71 Battery Type: lithium_ion Voltage: 15.44V Capacity: 57WH; Cells:4-cell; Color: Black, This battery provide the same battery life as the original,We are a professional laptop battery manufacturer,We only provide the best quality batteries to ensure the best possible buying experience for our customers
【Compatible Models】For Lenovo ThinkPad X1 Carbon 9th Gen Laptop, Lenovo ThinkPad X1 Carbon 9th Gen Type 20XW 20XX Series, Lenovo ThinkPad X1 Carbon 10th Gen Laptop, Lenovo ThinkPad X1 Carbon 10th Gen Type 21CB 21CC Series, Lenovo ThinkPad X1 Yoga 6th Gen Laptop, Lenovo ThinkPad X1 Yoga 6th Gen Type 20XY 20Y0 Series, Lenovo ThinkPad X1 Yoga 7th Gen Laptop, Lenovo ThinkPad X1 Yoga 7th Gen Type 21CD 21CE Series
【Bituli Quality】All of Bituli products are Certified by CE, FCC,RoHS and UL for safety. Strict guidelines for compatibility, and standards compliance for environmental safety.Bituli battery packs are comprised of grade "A" cells with top quality ion battery materials that ensure Reliable performance extended battery life
【Bituli Support】24 x 7 Email support, Rest assured with 30 days Refund,12 months Replacement,For any other problems or advise please feel free to contact us,If you are not satisfied for any reson please let us konw,we promise to deliver you a FAST resoluton