Oneplus 7Pro) After 3 years I finally replaced my back and battery!! Total $25. It was tough but really fun process to do. Took about 30minutes. The battery health was around 78%
REPLACEMENT BATTERY COMPATIBLE FOR ONE + 6T (A6010-A6013)(BLP685 – Tiger Parts
Original OnePlus Battery BLP685 for One Plus 6t With 3700mah for sale online | eBay
Amazon.com: Replacement Battery BLP685 Compatible with OnePlus 6T A6010 A6013 3700mah with Tools : Cell Phones & Accessories
Batería BLP571 para OnePlus One
Original OnePlus Replacement Battery BLP657 For OnePlus 6 6T 7 7T BLP699 7 Pro 7T Pro OnePlus 5 5T BLP571 For OnePlus 1 2 3 3T - Price history & Review