Previously, there were several cases where iPhone 14 users complained about rapid battery degradation after just a few months of using the smartphone. Now there is information that the iPhone 15 series has the same problem. According to insider RGcloudS, the newest models use cheaper batteries that only have about 600 charge cycles.
Since the iPhone 15 cannot be classified as a high-end product line capable of supporting 100W charging power, it uses batteries that are only rated for 600 cycles. This means Apple could cut production costs to keep prices flat this year.
Chinese brands such as OPPO, Vivo and others use batteries with a resource of up to 800 charge cycles, and OnePlus, through the use of more advanced self-healing cells, uses batteries with a lifespan of 1600 charge cycles. However, these companies compromise on cheaper materials and hardware, such as the processor and display. Apple may be cutting costs by using cheaper batteries because the company has established a widespread and reliable supply chain and retail network that allows batteries to be replaced at a low cost.
No other company can provide the same service as Apple, especially when it comes to battery replacement. The latest iPhone batteries used recycled cobalt as the cathode. Recycling it actually costs about the same or more than buying high quality cells for an 800+ charge cycle battery. So it makes sense for Apple to change them. Of course, this assumption may turn out to be just a rumor, so you should take this information accordingly.