2. Take Apple's mobile phone as an example. The official suggestion is that less than 80% need to be replaced. Therefore, 60% of the batteries must be replaced. Battery refers to a part of the space of a cup, can or other container or composite container containing electrolyte solution and metal electrodes that generate current, and a device that can convert chemical energy into electrical energy. Divided into positive electrode and negative electrode.
3, Apple battery life is less than 80%, it is necessary to change. Generally speaking, when the iPhone is charged more than 500 times, that is, after using the iPhone for about 14- 18 months, the battery life will be reduced and the capacity will reach about 80%. At this time, you can consider changing the battery.
4.80% of the battery capacity needs to be replaced. After charging the iPhone for more than 500 times, that is, after using the iPhone for about 14- 18 months, the battery life will be reduced and the capacity will reach about 80%. At this time, you can consider changing the battery.