An iPhone shutting down unexpectedly can happen due to several reasons. Usually, all such reasons can be resolved through a soft reset. In case the problem still persists, then it is a clear indication that it is time for iPhone battery replacement near me. Skilled technicians in proven iPhone battery replacement centers in Bangalore have explained this problem in detail. An iPhone has a Li-ion battery which is a current intensive battery. This means that it derives its resistance from the voltage it secretes from the charge. If an iPhone is used for processor-intensive work regularly, the battery will be required to derive higher resistance frequently. If it reaches its range, the battery will drop, and the iPhone shuts down. When this happens frequently, it is a sign that the battery needs changing.