Wireless charging is one of Apple's most convenient innovations in recent years. Simply place your iPhone on the dock, and charging begins automatically, without the hassle of wires. However, users often notice that the device it charges too slowly or at all loses charge even when charging.
Service center specialists explain why this happens, how dangerous it is for the battery, and how to solve the problem. RudService, which specializes in professional repair of iPhones, iPads, MacBooks and other Apple equipment.
How iPhone wireless charging works
To understand why your iPhone is charging slowly, it's important to understand how the technology itself works.
Wireless charging is based on inductive energy transferThe coil in the charging station creates a magnetic field, and the coil inside the phone receives it and converts it into electricity.
This technology is convenient, but has its own peculiarities:
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Energy loss during transmission is 30–40%.
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Charging is sensitive to position of the device And thickness of the cover.
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With the slightest displacement of the coils, the speed drops.
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When overheated, the system automatically reduces power.
So, even when using a genuine Apple accessory, the process may be slower than via a Lightning or USB-C cable.
The main reasons for slow iPhone wireless charging
1. Non-original charger
The most common reason is the use of MagSafe copies or cheap Qi stations.
Many of them don't meet the power standards stated in the description. For example, they say 15W, but in reality, the charger only outputs 5-7W.
In addition, uncertified chargers may overheat, make noise or supply current unstably, causing the iPhone's power controller to reduce charging speed to protect the battery.
🔹 Solution: Use original Apple MagSafe accessories or trusted brands (Belkin, Anker, ESR). RudService You can check your accessory to make sure it is safe to use.
2. Thick or metal case
The case is not just protection, but also a possible barrier to the electromagnetic field.
Especially if he:
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made of metal or with metal inserts;
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has a stand, magnet or cards inside;
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too thick (>3 mm).
As a result, energy is lost between the charger and the phone, and the charger becomes 2–3 times slower.
🔹 Solution: Remove the case and try charging the device directly. If the speed increases significantly, you've found the problem.
3. Displacement of the phone on the platform
Wireless charging requires perfect alignment of coilsIf the iPhone is not centered, some of the magnetic field is lost and the power decreases.
Even a small offset of 5-10mm can reduce the efficiency of the 30-50%.
🔹 Solution: Center your phone and wait for the charging animation to appear. It's best to use the original ones. MagSafe stations with magnetic positioning.
4. Device overheating
During prolonged wireless charging, the iPhone body becomes hot, especially in the summer or when charging under a pillow or on a soft surface.
When the temperature exceeds 35°CThe protection system reduces power to prevent the battery from overheating. As a result, charging may slow down by 3-4 times or stop altogether.
🔹 Solution: Place the charger on a hard surface, avoid direct sunlight, and do not use your iPhone while charging.
5. Battery problems
If the battery is already worn out (for example, the "Battery capacity" indicator in the settings is less than 80%), the power controller may limit current to protect the batteries.
This is especially noticeable with wireless charging, which is less efficient and the system artificially reduces power.
🔹 Solution: Get a free battery diagnostic at RudServiceIf replacement is required, specialists will install it original Apple battery with calibration and guarantee.
6. Damage to the power controller or induction coil
If your iPhone is charging erratically, losing charge, or not charging at all, the problem may not be with the accessories, but with the device itself.
The following could fail:
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wireless charging coil,
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power controller (Tristar, Tigris),
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power cable or connector.
These components are sensitive to drops, moisture, and overheating. It's impossible to determine the exact cause without professional diagnostics.
🔹 Solution: in service RudService They perform diagnostics under a microscope and pinpoint the fault. If the problem is hardware-related, they repair the board or replace the charging coil with restoration of the housing's tightness.
Why is wireless charging always slower than cable charging?
Even with working equipment and original accessories, wireless charging by definition slower.
MagSafe's typical power output is 15 W, while a USB-C cable can transmit up to 27 W.
That is, if the iPhone 13 Pro charges from 0 to 80% in 40–45 minutes via a wire, then the same process will take 20 minutes with wireless charging. 1.5–2 hours.
This is not a malfunction, but simply a feature of the technology.
When should you contact RudService?
If you notice that your iPhone:
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does not respond to wireless charging;
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charges only in a certain position;
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charging is interrupted at the slightest movement;
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the phone gets very hot while charging;
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the charge is very slow (less than 10% per hour) -
This means there is a hardware problem.
Don't attempt to disassemble the device yourself—there are fragile components inside, and a mistake could lead to costly repairs. It's best to contact a specialist immediately. RudService.
Why do customers choose RudService?
RudService - this is not just a workshop, but professional Apple equipment repair center, where everything is arranged according to the brand's quality standards.
Advantages:
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Free diagnostics. We determine the exact cause of the problem to avoid overpaying.
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Original parts. Only certified components and branded tools.
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Experienced engineers. Each technician has been trained and knows the features of all iPhone models.
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Warranty for repairs. From 3 to 12 months for all types of work.
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Service for business. Receipts, certificates, and documents for accounting are provided.
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Convenient logistics. Courier delivery in Kyiv and throughout Ukraine.
Thanks to this, RudService has earned the trust of both private and corporate clients.
How repairs are carried out at RudService
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You bring an iPhone or arrange courier delivery.
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An engineer is conducting diagnostics and determines whether the charger, battery or controller is at fault.
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The manager agrees on the price and terms.
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The master is performing repairs - replacing the coil, cleaning the board or replacing the battery.
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Testing and issuing of the device.
The process takes from 1 to 3 hours, depending on the complexity.
How to extend the life of your wireless charger
Experts RudService advise:
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Use original MagSafe accessories.
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Do not place objects (cards, metal) between the phone and the charger.
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Do not keep the device on charge overnight.
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Clean the charging surface from dust and lint.
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Undergo preventive diagnostics every 6–12 months.
This will extend the battery life and prevent overheating.
Conclusion
Slow wireless charging on an iPhone isn't always a sign of a malfunction, but if the speed drops abnormally, the device heats up, or stops charging altogether, it's a sign to contact a service center.
RudService We'll help you quickly identify the cause and fix it with a guarantee. We use genuine parts, professional equipment, and provide comprehensive documentation for legal entities.
Don't worry about slow charging - trust the diagnostics and repair to specialists rudservice.com.ua.
Your iPhone will charge quickly, safely, and reliably again – just like the day you bought it.
