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Recalibrate iPhone Battery – Percentage, Meter, and Replacement

APR 16, 2021   Pageview:52

Recalibration of the so-called "smart" batteries, i.e., Lithium-ion battery, can be defined as resetting to its initial metering condition. One may ask, why do we recalibrate? Well, Lithium-ion battery loses some of its charging ions due to; old age as they undergo repeated charging and discharging process. Due to this and other factors, the initial metering/percentage of the battery gradually reduces. Therefore, the battery will give inconsistent, inaccurate percentages as time goes by, which causes a nuisance to users and confuses the phone's artificial intelligence relaying functions.

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The major causes of incorrect calibration in batteries include; software update, self-refreshing of background applications, the addition of new features to the phone, and the regular day-to-day use of the phone. Software updates come with new technologies that may be power-consuming. This will necessitate recalibration. Similarly, additional apps demand additional power, thereby draining the Lithium-ion, thus necessitating recalibration.

What then is the importance of recalibration? Recalibration will ensure that our iPhone device gives a more accurate battery metering. iPhone has gone a milestone ahead by developing an AI-powered operating system (iOS) that can track the battery operating range. The information obtained by this tracking action is used to determine the trickle charge~ a phenomenon or a technology that commands the phone's power IC to lower the charge current when charging is about 80 percent full, this ensures that the intelligent batteries are maintained in good condition. Above all, it gives accurate readings. 

Incorrect metering will cause the AI to give the wrong signal for interpretation, affecting the trickle-down function. It also causes a severe nuisance to the users. Take, for example, your battery reads 20 percentage, but a few minutes later, it shuts off, causing damage to the users who depend on it. Usually, we anticipate such a percentage to last longer for regular use. This inconsistency in what the meter says and what we the users experience is incorrect metering. Hence, the need for recalibration.

Recalibrate iPhone Battery Percentage

Battery percentage refers to that icon on the iPhone that displays the battery power left in the phone. Following the reasons outlined clearly in the introduction above, the battery percentage must be calibrated occasionally, preferably after one to three months, to ensure correct metering and allow for optimum functioning of your iPhone gadget or long battery life.

The recalibration process involves some simple steps which do not require any tool or expertise to perform. The first procedure is to drain the battery completely. Draining your battery completely might inconvenience the phone's regular use; hence, the preferential time for performing this action is probably at night, just before bedtime. To facilitate faster draining of the battery, one may be forced to play an online video, increase the battery brightness, turn on Bluetooth, etc., to maximize the draining process. These actions are performed until the phone shuts off due to the low battery. After that, allow the phone to further drain by leaving it overnight or giving an allowance of three hours.

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Why the allowance? Every Smartphone user has at one point noticed that phones shut off when having about 2-3 percent charge to allow the phone to store users data as per before shutting off. To completely drain this power, the phone is allowed to stay overnight or given about three hours before the next action course.

Once the device is believed to be completely drained to zero percent, we move to the next stage, charging the device. Charging is optimized by ensuring that the following simple but essential guidelines are followed; use of the manufacturer's recommended charger to charge your iPhone, leave it to charge and interrupted until it is complete, and ensuring that the phone is off when charging.

Usually, iPhone displays the hundred percent mark just after completing the 99 percent mark. Therefore, a display of a hundred percent does not necessarily mean that the full is full. Allowing about 3 hours after full charge ensures the maximum charging. The device is charged in off condition to ensure no overheating, which will bring adverse effects on the battery.

The next step involves repeating the above three steps to ensure complete metering. By doing this simple but vital act, the battery is restored to its initial functioning and everyday life.

Recalibrate iPhone Battery Meter

iPhone battery meter refers to the charge displaying icon when the phone is set to low power usage. It doesn't display the percentage but color representation of the same. The recalibration of the iPhone battery meter is more minor, the same as the one described above. 

It follows three principles of drain, recharge, and repeat the process. Just as explained before, there's a need to drain the battery entirely to zero. This is done by allowing more time after the phone shuts off due to charge. Then, the iPhone is recharged to full charge by allowing more time after a hundred percent is attained. Charging is done using the recommended charger and directly inserting the charger into the socket instead of using a personal computer. Also, keep the phone shut while charging.

The above steps are done one more time. This ensures that the metering is wholly done. The phone is then ready for use.

Recalibrate iPhone Battery After Replacement

Calibration of a new iPhone battery is a simple but time-consuming process which requires a great deal of patience. The process involves draining the iPhone to zero percent, recharging it until complete without any interruptions. The process is repeated. Once this is completed, the battery is considered fully recalibrated. This process is similar to the one described in the preceding subsections.


Intelligent battery (Lithium-ion) life degrades slowly as it is used, thus affecting battery life. Affected battery life interferes with the proper functioning of the iPhone, considering, for instance, the fact that the trickle-down effect is dependent on the battery metering. Therefore, there's a need to ensure that the iPhone smart battery is recalibrated at least after 3months to ensure a long life for these and more reasons.


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