Apple recently sent out invitations for an event on September 9th, likely to announce the iPhone 16. This announcement has sparked discussions on social media about the battery longevity of current iPhones along with dashed hopes of user replaceable batteries. We take a deeper dive in my latest video.
After a year of use, my iPhone 15 Pro Max’s battery capacity has decreased by about 8%, with 278 charging cycles logged. While I’ve noticed a reduction in overall battery life from when I first purchased the phone, it is doing slightly better than where my iPhone 14 Pro was at a year ago. This might be due to the iPhone 14 Pro having a smaller battery and thus more charging cycles. Either way I’m well within the stated performance expectations for Apple’s iPhone batteries.
Apple claims that the iPhone 15 models are designed to retain 80% of their original capacity after 1,000 complete charge cycles, a step up from the 500 cycle claim for the iPhone 14 and earlier models.
This improvement seems to align with a new European Union regulation that mandates user-replaceable batteries, but with a significant loophole if batteries can maintain, you guessed it, 80% capacity after 1,000 charge cycles. If a device can maintain at least 80% capacity after 1,000 full charge cycles and is waterproof, it is exempt from the regulation, meaning Apple can continue producing phones with non-user-replaceable batteries. One might argue that Apple engineered to the spec, or perhaps Apple’s lobbyists helped engineer a law that meets their hardware performance levels.
Apple provides guidelines on maximizing battery lifespan, emphasizing the importance of keeping your phone cool, especially during charging. They recommend avoiding exposure to temperatures above 95°F (35°C), which can permanently damage battery capacity. Many of us, myself included, charge our phones wirelessly or use fast chargers, both of which generate heat and contribute to battery degradation. Apple also suggests that phone cases can trap heat, further accelerating battery wear.
For those considering battery replacement, Apple offers the service for $100, but there’s a catch. If your phone has any other damage, such as a cracked screen, Apple will require you to fix that first, potentially turning a $100 battery replacement into a much more expensive repair. While it’s possible to replace the battery yourself using a guide from iFixit, the process is complicated and requires specialized tools.
Anecdotally, based on comments I’ve seen, it seems people who avoid fully charging their phones every time and opt for slower wired chargers might experience better battery longevity than those of us who use faster, heat-generating charging options.