Battery Model & Phone Model : 
HB396285ECW 3320mAh    Huawei P20   EML-L29C, EML-L09C, EML-AL00 EML-TL00, EML-L29, EML-L09, EML-AL00

Type: Li-ion

Compatible: Huawei  P20

Details: 
This high-quality original Huawei battery is the best replacement for your phone and functions the same as the one that came with your phone.
 Just take off your battery cover and replace it with this new one.
Please ensure that you drain the new battery completely then charge it for at least 12 hours. This will help you to get a good life span and better usage from it.
The battery life of a handset can vary greatly depending on how you use your device, mains charger, cable, and your battery charging habits