Specification? Part number?BLP821 Capacity?2200mAh/17.02Wh Type?Polymer Compatible models? One Plus 9 LE2113 LE2117 LE2115 Package includes? -1 x Grade A+ Battery Product Description? ?1.We don’t provide an instruction manual. You can find instructional videos on YouTube. We always recommend a trained technician replace it. ?2.To have the best use effect, please use up all the battery power until the phone automatically shuts down, and then fully charge it. Repeat this action 3-5 times to make the battery achieve its best use effect. ?3. Do not use low quality third-party adapter charger to charge your device, that will shorten the battery's life. Note? 1. Please double check the model number of your device before purchasing to determine if this battery is compatible with your device. 2. Due to lighting and screen differences, product colours may vary slightly from the images. 7.Please do not hesitate to contact us if you have any questions or queries about the products you have received.