In this article, I will consider the reasons why the iPhone does not correctly show the battery charge (charging is not up to the end, percentages jump, etc.). We solve the problem together.
This article is suitable for all iPhone Xs / Xr / X / 8/7/6/5 and Plus models on iOS 12. On older versions, the menu items and hardware support specified in the article may or may not be present.
Reasons why iPhone doesn’t display battery power correctly
Incorrect display of the remaining percent of the charge may indicate serious problems with the iPhone. A smartphone can, for example, show 100%, and after a few minutes already 60%. Fading of percent is also often found, and then their sharp decrease. We’ll list the main problems due to which the iPhone may lie with showing the remaining battery capacity:
- Using your iPhone in the cold. This problem has been known for a long time and it is noteworthy that users are still faced with this annoying feature of apple technology. If you use your smartphone at sub-zero temperatures, it is likely that the battery charge is not displayed correctly. Moreover, this problem is more relevant with the iPhone, which has a small battery (all but Plus and X models). An interesting feature of the device in cold weather is that after placing the device in a warm room and connecting it to a power source, the percentage of capacity can increase several times.
- Charging with non-original accessories. Do not use cheap chargers with your iPhone. It is highly recommended that you charge your smartphone only with the original lightning cable and the same power source. You can also use high-quality analogues. As a rule, they are certified by Apple and have a special marking – MFI (made for iPhone).
Battery calibration how and what are the signs of need
If you encounter any problems with the battery charge, you must calibrate it. Although lithium-ion batteries are much better than nickel-cadmium (no memory effect, smaller sizes), they can still fail and do strange things. What may be the signs for calibration:
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- Turn off iPhone at 10-30% charge
- 5-10% sharp jumps
- Extremely fast smartphone discharge
- Fading of the charge indicator, and then its sharp change
- iPhone not used for several months
The algorithm for calibrating the battery is as follows:
- Discharge your iPhone completely. It is necessary to achieve a state in which the smartphone turns off on its own. To do this is quite simple – just play games or turn on the video.
- Connect the iPhone to a power source (preferably an outlet) and wait until the battery is fully charged up to 100%.
- Wait a few more hours to synchronize the controller and battery.
- Disconnect the iPhone from the network.
- Next, repeat paragraphs 1-3.
When to change the battery
The iPhone has become so smart that it itself tells the owner when it will be necessary to replace the battery. This information can be viewed in the settings by going to the "Battery". And starting with iOS 11.3, the user himself will be able to adjust battery wear, choosing between autonomy and performance.
You can do this yourself. First, you should evaluate the battery wear. Battery Life for iOS is great for this operation. The program interface is simple and demonstrates how worn out the battery is. It also says what is the remaining capacity.
For a more detailed assessment of the battery, you should use a computer program. Consider the coconutBattery utility as an example. Here we are interested in the number of iPhone recharge cycles. If this value is more than 500, then most likely you need to replace the battery with a new one.
An indirect sign of a damaged battery is turning off the smartphone in the cold. At minus temperatures, the iPhone may discharge faster, but the device should not turn off. It is important to know that any batteries are pretty bad friends with frost and can lose their properties and wear out faster.