How much does Huawei battery health need to change?

80%。 According to Zhongguancun online information, Huawei's mobile phone battery health is less than 80%, battery life will be shortened and battery life will become worse. At the same time, when the power is low, the battery will not be durable, and the power consumption will increase rapidly, leading to the shutdown state. According to the information of Huawei's customer service in official website, when you enjoy the two-year service of HUAWEICare+, you can replace 1 battery free of charge when the maximum capacity of the mobile phone battery is less than 85% within the service validity period.