Getting terrible battery life on your Galaxy S24 Ultra? Time for a fresh battery. At My Cell Repair in Santa Rosa, California, we offer reliable Galaxy S24 Ultra battery replacement. We open your phone carefully, replace the aging lithium cell, and seal it back up properly. No shipping your phone away. Just drop by our Santa Rosa shop. Most battery swaps take under an hour. You will notice the difference immediately: longer screen time, fewer charges, and no more unexpected shutdowns.