Smartphones have integrated rechargeable batteries that, over time, can lose their ability to hold a full charge and eventually need to be replaced. To extend the life of your phone's battery, there are a few simple things you can do. First, remove the phone case if your phone gets hot when it charges. Some cases retain excess heat, which can affect battery capacity. Check the brightness level; the less "bright" your screen is, the less energy it uses. You can opt for "auto brightness," which automatically adjusts your phone screen's brightness according to the amount of light sensed by its camera.
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