2.5 year old OnePlus 5T, running dual sim, on LTE full time, 2 sim cards, oos 10 beta 2, amazing how well this phone and it's battery has aged. Still fast as lightning. : r/Oneplus5T
OnePlus 2 battery repair guide | iDoc
Black Oneplus Nord 2 Battery Replacement, Pan India, 3 To 5 Days