It is advisable for users to replace their iPhone batteries every year or so. While this seems like an unusual amount of time to put between charging and using your phone, it actually gives your iPhone more life, and it prevents the need for expensive replacement batteries. If you want to know when to replace an iPhone battery, then the following information should help.
To figure out when to replace your iPhone battery, you should first figure out how your iPhone's battery life varies throughout different applications and different times of day. For example, when you are using your iPhone at night, your battery health will be much worse than when you use it during the daytime. Also, when you are using your iPhone at night, you should avoid doing any other activities that will drain your battery life. For example, if you are playing games or watching streaming video, you should turn off these other applications to ensure that your battery life will last much longer.
Once you have determined when to replace an iPhone battery, the next step is to find a compatible replacement battery for your iPhone. Because an iPhone has multiple components, it is not possible to purchase one replacement battery that will work with all of them. Instead, you should purchase a batter that is designed specifically for your specific model. In general, it is a good idea to choose a replacement battery that matches the type of problem that you are experiencing. For instance, if you are experiencing an unexpected shutdown, then you should purchase a battery that is specifically made to handle this situation.