this is another common problem on the is your xiaomi mi 11 ultra mobile battery not working. are you having mobile battery issues? is your xiaomi mi 11 ultra mobile battery overheating? or phone not powering on, it doesn’t matter, we are equipped with the latest tech to repair your xiaomi mi 11 ultra mobile . every xiaomi mi 11 ultra mobile battery replacement in t nagar chennai can be done on-site or you can come to our ifixservice service center, located in the heart of chennai.