CarPlay charging and battery health

Hey nikosdimitriou,

We can shed some clearer light on the answer to your question. Constant use of the device (10 hours straight) will deplete the battery over time whether it's plugged in or not. Essentially, although the device may have constant power, the battery is still used as it doesn't have a separate power source. Eventually the capacity and performance will decline.

The rate or speed at which that happens varies on the usage, number of charge cycles, and more. You'll want to avoid over charging or hot environments for extended periods of time.

We hope this clarifies things for you, but feel free to reply if you need further clarity or have additional questions.

Take care.

Hello nikosdimitriou,

It sounds like you have concerns about the battery life and health as you use your device daily. We understand the battery is a crucial component to a great working device, and we're happy to help address this concern further.

All rechargeable batteries are consumable components, meaning they have limited life spans. Eventually the capacity and performance over time can decline. You can review more details through our website here: iPhone Battery and Performance. When we talk about chemical aging, we’re referring not only to the battery’s age, but also to the number of charge cycles, exposure to unfavorable temperatures, heavy usage and how the device is cared for. In other words, it means your battery is less effective than when it was new.

Maximum capacity means that your iPhone holds a percent of its capacity relative to when it was new. So the battery charge will not last as long as it did when the battery was new. If Performance management is applied and battery health is degraded, it means your battery has a high chemical age. Replacing the battery will restore full battery performance and capacity to your iPhone.

Thanks for posting in the Apple Support Communities forum.

Have a great week!