I the last 5 years alone I've replaced batteries in: - Pixel 4, more than doubling it's battery life - Pixel 2 XL making it usable again - One Plus 6 almost

I the last 5 years alone I've replaced batteries in: - Pixel 4, more than doubling it's battery life - Pixel 2 XL making it usable again - One Plus 6 almost doubling it's battery life So clearly mileage will vary.