A:Answer Most of these phones are sealed, though batteries can usually be replaced. I have the 2 year warranty through the Total Tech program.... so no worries through Best Buy. I also have a Samsung 20, and have had for a few years and no battery issues. I can use it for hours each day, and it still has 40+% of the charge left. Then it charges up in under an hour even lower than that!
Don't leave your phone on the dash, or in direct sunlight too!