Stopped using the S22U as a phone when the S24U became my primary device. It's now my bathroom reader. Have been leaving it plugged in to charge at night while playing games and overheated the battery resulting in the dreaded FAT BATTERY. Took it to the local Asurion shop and got a new 5,000 mAh battery and gasket kit installed for $97. Now I limit the charge to 80% and try not to use it while its plugged in. If it gets the fat battery again, my S24U becomes the next bathroom reader.