Short answer: On iPhone, you can turn off Optimized Battery Charging to stop the slower final phase of charging, which makes the last 20% charge faster. This is useful if you want to charge to 100% more quickly, but it may have a small impact on long-term battery health. Details and steps
- What it does: Optimized Battery Charging learns your daily charging routine and pauses charging at around 80% until you need to use the phone, then completes to 100%. Disabling it allows the phone to charge to 100% continuously, potentially charging faster at the end of the cycle [web results related to iPhone charging features and settings].
- How to turn it off:
- Open Settings
- Tap Battery
- Tap Battery Health & Charging (or simply Battery Health on some iOS versions)
- Find Optimized Battery Charging
- Turn it off (or set to off)
- Important notes:
- With Optimized Battery Charging disabled, the phone will charge to 100% more quickly but may experience slightly more battery wear over time due to more complete charging cycles.
* If you don’t see the exact labels, you’re likely on a recent iOS version where the option is presented as Optimized Battery Charging within the Battery Health and Charging section; navigate through Battery and then Battery Health & Charging to locate it.
* You can re-enable Optimized Battery Charging at any time by returning to the same setting and turning it back on.
Caveats and alternatives
- If the device is in a low-power state or you’re using a slow charger, you might still experience slower charging near full due to hardware/charger limitations, independent of this setting.
- On some devices, charging speed can appear limited by system features or environmental factors; using a high-quality USB-C/Lightning charger and cable can help maximize charging speed regardless of the setting.
If you’d like, I can tailor these steps to your exact iPhone model and iOS version.
