The iPhone 6S+ that I bought had a “battery health” of only 84% - considerably less that the much older phone that it replaced and it wouldn’t last a full day without charging. The phone itself is fine and I was prepared to contribute to replacing the battery but I could not get a sensible answer from anyone, just a standard reply that went to anyone who complained about their battery. I persisted with communication and suggested that I would contribute to the cost of a new battery (twice) but failed to get a reply at all. Ironically I had three requests to rate my purchase and at least three more marketing mails before getting another useless reply to my multiple mails. And it is impossible to phone them!! This is the third phone I have bought from QMF but it is now the last. I will not deal with a company that has such bad communication!