What is optimized battery charging and why you should keep it enabled on your devices

Rechargeable lithium-ion batteries are the fossil fuels of the 21st century. We use these batteries not only to power smartphones (and all our gadgets), but also modern electric vehicles. However, maintaining lithium-ion batteries is still a challenge. These types of batteries wear out over time, which can affect their ability to hold a charge. Therefore, keeping the battery at 100% all the time can cause it to deteriorate faster.

Moreover, as modern demands grow, consumers want their batteries charged all the time. Although this is not possible in the real world, OEMs ship their smartphones with fast charging features, which can degrade smartphone batteries even faster. So, to negate this effect, most OEMs ship their smartphones with a feature called Optimized Battery Charging. But what exactly is optimized charging? Here’s everything you need to know.


What is Optimized Battery Charging and how does it work?

Optimized battery charging is a feature that keeps the battery’s health in check and prevents chemical aging of your smartphone’s battery. But why is it important to prevent aging for the better? Well, to answer this simply, a weak battery is unable to hold a charge properly, resulting in reduced battery life. It also affects the overall performance of your smartphone.

Various factors affect how quickly batteries age, such as their charging pattern, the temperature around them, and their physical age. One of the factors that degrades a battery the most is overnight charging or simply keeping a phone plugged into a charger even when fully charged.

So most OEMs have developed an optimized charging feature for their smartphones. This function ensures that the batteries are not discharged quickly and are charged in a very safe way.

It uses machine learning to determine how you use your smartphone. This includes active use, idle time and charging time. Then when your phone knows when to stay connected to a charge for an extended period of time (eg overnight charging), it will delay the charge to more than 80%. The charging is then activated before you take your phone off the charger, so you get a fully charged phone.

The feature works well overnight, especially if you have regular sleeping habits. Despite purposefully making your iPhone charge slower, it turns out to be beneficial in the long run. Here’s how to enable Optimized Charging on iPhones, Android smartphones, MacBooks, and even Windows devices:

How to Enable or Disable Optimized Battery Charging on iPhone

Optimized battery charging is enabled by default on all iPhones (running iOS 13 or later). Just in case you want to double check, here’s how you can enable (or disable) the feature on your iPhone:

  • Open Settings and go to Battery section.
  • On the screen that appears, tap Battery health and charging button.
  • Now you can switch on/off Optimized battery charging function.

If Optimized Battery Charging is turned on and you leave your iPhone charging for a long time, the system will send you a notification that will indicate when your phone’s charging is complete. If you want to turn off the Optimized Battery Charging feature at that time, tap and hold the notification, then tap Charge Now. The phone’s charging normally continues when it reaches 80% instead of pausing.

How to enable or disable adaptive battery charging on Google Pixel, Samsung Galaxy and other Android smartphones

Here’s how to enable Optimized Battery Charging on various Android smartphones including Google Pixel, Samsung Galaxy and OnePlus smartphones:

On Google Pixel devices (Pixel 4 or later)

  • To enable adaptive battery charging on Google Pixel smartphones, head over to Settings app.
  • Go to Battery section and then click Adaptive preferences.
  • On the next screen that appears, enable Adaptive charging switch. Google notes that when the feature is enabled, the battery life of your Pixel device may increase as the phone steadily charges during longer charging periods.

On Samsung Galaxy smartphones

Although Samsung does not offer the optimized charging feature on its devices, you can instead limit the charging of the devices to 85% to protect the health of your Galaxy smartphone.

  • open Settings app and go to Battery and device maintenance section.
  • Select on the next screen Battery → More battery settings.
  • Now you can turn on the Adaptive Battery setting, which limits the background processes and extends battery life based on your phone usage, and enable Protect battery switching, which limits the charging of your device to 85% to protect its health.

On OnePlus devices

OnePlus also offers an optimized night charging feature on its devices. Apart from that, you can improve battery health by optimizing standby time for sleep and individual apps. Here’s how you can do it:

  • Go over to Settings app and press Battery possibility.
  • On the next screen, tap Multiple battery settings.
  • Activate now Optimized night charging and Sleep Standby Optimization options. In addition, you can control the battery consumption of apps by pressing Optimize battery usage possibility.

On other Android smartphones

If your smartphone’s brand is not listed above, don’t worry. Many other Android smartphone manufacturers such as HONOR, HUAWEI and Realme offer similar settings on their devices to enable/disable optimized battery charging. Look up similar options in the battery settings of your smartphone.

If you are unable to see the settings on your smartphone, let us know in the comments section below and we will be happy to help. Alternatively, you can try installing similar apps from the Google Play Store, such as Super Charging Pro, to monitor charging speeds and get notified when your device is charged.

How to enable or disable Optimized Battery Charging on a Mac

Like iPhones, Apple also offers the Optimized Battery Charging feature on macOS. On macOS Ventura (or later), you can enable the setting by going to System Settings → Battery → ⓘ and then check or uncheck the Optimized battery charging box to enable/disable the feature.

On macOS Monterey (or earlier), you can enable/disable the feature by going to System Settings → Battery → Optimized Battery Charging. To ensure that your Mac’s battery is working well, you should also activate Manage battery life checkbox buried under the Battery Health section at the bottom.

How to enable or disable smart battery charging on Windows laptops and devices

All Windows devices and laptops support an adaptive charging feature called Smart Battery Charging. Microsoft says that when the Smart Battery Charging feature is enabled, your Windows device’s battery level “will be set to a lower level that is better for the battery overall.” This means that your laptop may not charge to 100%, but it will charge to a certain point (that’s less than 100%), which will help keep your battery healthier in the long run.

While the feature can’t be turned on manually, Microsoft says your device will automatically determine when it should ‘smart charging’. When your Windows device starts smart charging, you will notice a heart on the battery icon on the right side of the taskbar and in power and battery settings.

Optimized battery charging is a feature worth keeping on for your devices. In addition to keeping your battery healthy, it will also save you money on replacing batteries or new devices. Be sure to enable Optimized Battery Charging on all your devices today.

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