Charging iPhone can gradually get slow over time or just slow out of the box. For situations where it gradually gets low, it means there is a problem that likely needs to be fixed or the user introduced or changed. Quick fix to this is to change it back to its original state to restore charging speed. This could be using an authentic charger, cables, authentic and certified cases for MagSafe Chargers and more.
For older or aging iPhones, they used to come with slow changers and replacing them with a good after-market charger is the fastest fix.
Turn off Clean Energy Charging
Apple introduced a feature called Clean Energy Charging in an update to iPhone’s iOS version 16.3.1 and later. Clean Energy Charging is supposed to only charge your phone when you are using a clean energy source based on your electrical grid. Apple claims this is supposed to reduce your carbon footprint. The option is turned on by default.
To turn off Clean Energy Charging, navigate to Settings > Battery > Battery Health & Charging > Clean Energy Charging then flip the switch to turn it off.
If you try charging while this option of enabled and your electrical grid is identified as not using clean energy sources, your iPhone is supposed to notify you.
Use faster charger
Long before Apple stopped including a charger with a brand-new iPhone in the box, iPhone used to ship a 5W charger. This is extremely slow considering there are phone with over 200W charging capability. Apple nowadays sells 20W and 35W chargers for iPhones. You can however use any charger to charge your device.
The specifications of your chargers
Wired Charger over MagSafe
MagSafe wireless charging is only limited to 15W while wired charger at 20W. While charging and begins to heat up as all wireless chargers do, charging speed is further dropped down to 7.5W. This is significantly slower and will take long to fully charge your iPhone.
Replace Charging Cable
As charging and data cables are used on a regular, they get worn out and their functionality gets significantly impacted.
If the charging cable is peeling the while and copper wires are exposed or get warm when used, it is time to replace that USB-A/C to Lightning cable. Unusually warm charging cables means the cables have an unusually high resistance and causes then to heat up. If left unattended to, it eventually breaks and stops working.
Use MagSafe Compatible Cases
If you have to use wireless MagSafe chargers, then use MagSafe compatible cases.
Wireless chargers use induction to transfer charge from copper coil in a MagSafe Charger to a copper coil in your iPhone. Introducing a barrier in between the MagSafe Charger and an iPhone can significantly slow down charging or ever cut it off completely as the magnetic field that is supposed to get though might not.
As a rule of thumb, nonmetal material and thin cases will work just fine without significant interference.
Clean Charging Port
Over time as you use your iPhone, pocket lint and sand grains will accumulate in the charging port.
Clean with a toothpick with little to no force. Be careful, you may actually damage of you use a metal to wiggle out accumulated pocket lint. wooden or plastic materials should work just fine for this.
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