The problem of batteries exists in the MacBookPro that was produced and subsequently sold worldwide in the period from October 2016 to October 2017. The exact nature of the problem is not mentioned, and the problem of battery expansion is not new for manufacturers who rely on lithium ion technology. For consumers, the replacement plan is valid for five years, that is, the battery that has been affected after the MacBookPro has been retailing can be replaced in five years, that is, the plan has been valid until 2022. Apple said the hardware warranty was not affected by the replacement plan. Some MacBook users reported similar problems at Apples support community forum, that is, some complaints about the 17 inch MacBookPro sold in 2009. If users think their 13 inch MacBookPro is suffering from these problems, they can type their device sequence numbers on the apple specific replacement pages to check whether they are changing coverage. Replacement of MacBookPro within the coverage can be replaced by Apples authorized service provider or apple retail store. Or, consumers can send their equipment to Apple Maintenance Center (AppleRepairCenter). Those who have paid the cost of replacing the battery, and think that their machines are in line with the customers of the apple replacement plan, and have to contact the customer service department for compensation. (Tianmenshan Mountain) source: NetEase science and technology report editor: Zhang Zutao _NT5054 If users think their 13 inch MacBookPro is suffering from these problems, they can type their device sequence numbers on the apple specific replacement pages to check whether they are changing coverage.