How To Fix Decreasing Battery While Charging iPhone? [9 Fixes]

As an iPhone user you may face several issues. And among them the most annoying and serious one is while charging it’s battery level decreases instead of increasing. But, by following some necessary step by step procedures, you can easily solve this issue.

Basically, as some instant fixes, you can try cleaning the charging port, changing the battery, or plugging the device into an alternate AC power outlet. But these solutions might not work for you in all situations. That’s why you should know why this issue occurs and how to get rid of them.

Here, we’ll discuss why this issue occurs and their simple fixing procedure in detail so you can avoid future hassle. So, keep reading.

Reasons Behind Draining/Decreasing Battery While Charging iPhone

When you charge your iPhone, the percentage of the battery should increase. But occasionally, you might find that the battery level percentage is falling rather than rising.

Earlier, we briefly mentioned a few reasons for the issue. However, there can be many other reasons as well. These include the following:

  • Faulty charging port.
  • Malfunctioning adapter or charging cable.
  • Using a non-Apple-certified charger.
  • Overheating the iPhone.
  • Using a computer to charge rather than a power outlet.
  • Weak AC power supply.
  • Some battery-draining application is running in the background.
  • Hardware problems.
  • Battery issue.
  • Failing drivers or upgrades.
  • The optimized battery charging option is disabled.

How to fix the decreasing battery while charging the iPhone?

The aforementioned list of causes might seem hard to solve but there are some easy fixes as well. Hopefully, by trying these below mentioned simple fixes, you will be able to overcome this difficult situation.

Solution 1: Check the charging port

Check the charging port

In most cases, a defective charging port is likely to be the most common thing that causes battery draining even while charging. It basically prevents the device from recharging correctly.

In such a case, check the charging port for noticeable wear or damage to resolve this problem. It might need to be replaced if you see any damage, such as bent pins or cracks. Depending on the model, this might cost you anywhere from $50 to $150.

However, even if the port appears to be in good condition, it still might contain some dust. You can clean it using a soft toothbrush or toothpick. This might fix the battery drain problem.

Solution 2: Use an Apple-verified charger and cable

Use an Apple-verified charger and cable

If the problem persists even after trying the previous solution, it could be due to using an unverified charger and cable.

Apple has long advised customers to use MFIOpens in a new tab.-approved cables and chargers. MFI means “Made for iPhone/iPad/Pod.” It is an Apple-created licensing arrangement.

Accessories that are MFI approved are made to power any device with the appropriate amount of power and won’t harm the battery.

If you replace your non-certified charger and cord with an MFI-certified one, your problem could be resolved. Nonetheless, go on to the next one if this problem remains.

Solution 3: Check if your iPhone is overheating

Check if your iPhone is overheating

If your iPhone overheats while charging, it could lead to a drop in battery level. However, due to the advanced technology of Apple devices, this overheating issue rarely has a noticeable effect.

But, if you feel that your phone is getting too hot when charging, consider taking the case off. Since cases might trap heat and prevent your iPhone from properly dissipating it, causing it to overheat.

Also, keep your iPhone away from hot environments or direct sunlight while charging.

Solution 4: Use the AC wall power outlet instead of the PC’s USB port.

Use the AC wall power outlet instead of the PC’s USB port

Sometimes, your iPhone’s battery level decreases if you charge it with your PC or laptop’s USB port. These ports can not provide sufficient power to charge the device properly.

So, rather than using a PC’s USB port, it is advised to utilize a power outlet. But, if you are compelled to use a computer’s charging connections, be sure that the USB port on your computer is supplying adequate power.

Here you can use a charge monitoring APP called “AmpereOpens in a new tab..” Connect your iPhone to another USB port if this APP shows poor “A” (ampere).

Solution 5: Fix the battery issue

Fix the battery issue

Mobile phones like iPhones batteries are made with Lithium-Ion or Lithium-Polymer technology. And, they have a limited lifespan. These batteries/cells typically last 500 to 600 cycles before they lose 80% of their original capacity.

In this situation, replacing this battery with a new one is the only solution. You can replace it in an Apple Store or Apple authorized service provider. Apple charges between $49 and $99 for iPhone Battery Replacement Cost.

But, if you are on a low budget, you can also replace it on your own. This video guide might help you if you never do it before.

Solution 6: Try a different AC power outlet

Try a different AC power outlet

It may appear strange, but a faulty AC power socket might cause this battery to decrease while charging.

Basically, every Apple charger has a minimum AC power input rate. That’s why the charging adapter can’t operate properly if the wall AC socket provides less than the minimum range.

So, if the previous method fails, try charging your iPhone from a different AC power outlet. This might solve the issue. But if the problem persists, try the following suggestion.

Solution 7: Update your iPhone to the latest version

Update Your iOS Software

If the battery percentage is still dropping while charging, make sure that the most recent version of iOS is installed on your iPhone.

This can occasionally address the battery level decreasing issues. To check for available updates for your iPhone, navigate to Settings > General > Software Update.

On the other hand, you can try rebooting your iPhone. It might resolve this issue. Switch off your phone and press the power key until the Apple logo displays. It may resolve any software glitches that reduce battery life.

The battery draining problem might be fixed by employing these methods. But, when none of these procedures work, you might have to take your phone to the service center.

Solution 8: Close all background running applications

If you’re still experiencing a power drain issue, one or more programs might run in the background. So, double-tap the home button to reveal the programs now operating in the background. Then, swipe up to close them.

Also, disable all the extra features like Bluetooth, mobile data, and location services while charging.

Solution 9: Fix the hardware issue

Fix the hardware issue

Finally, if the battery-draining issue is still present, there is undoubtedly a hardware issue with the iPhone. In this situation, you must take your iPhone to an expert mechanic or Apple-authorized service providerOpens in a new tab..

Here, we strongly advise you to go to an Apple-authorized service provider or knowledgeable technician because an untrained or inexperienced mechanic runs the risk of further harming your phone.

If your iPhone is still covered by warranty, Apple might pay for the repairs. Otherwise, depending on your region and your iPhone’s model, this repair might range from $20 to $100.

When Should You Replace Your iPhone Battery? (iPhones Battery Replacement Signs)

When a battery fails, it exhibits several issues, including erratic operation, warning signals, etc. A 2019 surveyOpens in a new tab. found that when a phone’s battery life drops, at least one-third of individuals purchase a new phone.

Apple statesOpens in a new tab. that a standard battery is made to hold up to 80% of its initial capacity after 500 complete charge cycles when used under typical circumstances.

So, after a certain period, all iPhone users must replace their phone batteries. You should watch out for the following warning indicators that might mean it’s time to get a new iPhone battery:

  • Shuts off Abruptly
  • System Slows down
  • Low battery level
  • iPhone feels warm
  • Your iPhone is more than three years old.
  • The battery charge level on your iPhone runs out rapidly

Best Practices to Preserve iPhone Battery Life

Like many other gadgets, the Apple iPhone requires maintenance to remain in good operating condition. Here, the battery is one of the typical iPhone components to fail first.

So, if you fail to care for your iPhone’s battery, your device may quit working. Hence, if you want to use your smartphone for as long as possible, consider these battery-saving tips:

  • Keep your iPhone charged at all times.
  • Always turn on Low Power Mode.
  • Lower the brightness of the screen.
  • Don’t let your iPhone sit charged all night.
  • Upgrade to the most recent IOS version.
  • Turn off location services.
  • Use only authorized Apple chargers.
  • Avoid charging in very hot or very cold temperatures.
  • Utilize Wi-Fi rather than cellular data.
  • Disable push notifications.
  • Disable the option that enables background app refresh.

Frequently Asked Question

You could still have questions even after reading this article. We did our best to answer some relevant questions. Apart from them, here are some FAQs that you may also want to know.

Should I Use Aftermarket Battery For My iPhone?

No. It is not suggested to use aftermarket iPhone batteries because they may not have the exact same quality as official Apple batteries. As a result, they might possibly damage your device, posing a risk to your safety and nullifying any warranties.

How Long Does an iPhone’s Battery Last?

With careful maintenance, a brand-new iPhone battery may last for a maximum of two to three years. Usually, it lasts for 500 charge cycles before it starts to deteriorate.

Should I charge my iPhone overnight?

Theoretically, charging your iPhone overnight is normally safe because newer models are made to stop charging when the battery becomes entirely full. But, to maintain battery health, it is still advised to disconnect your iPhone as soon as it hits 100%.

Will resetting my iPhone fix the battery issue?

Resetting your iPhone may be helpful if the battery issues are due to software glitches, such as a corrupted app. But, if somehow the battery is physically damaged or deteriorated, rebooting your iPhone will not resolve the problem.

Is it safe to use my iPhone while it’s charging?

According to experts, it’s safe to use the phone while charging. But it can reduce your charging speed. Still, we suggest you avoid using heavy and battery-draining applications because they may make your iPhone hot, which badly affects its battery.

How long does it take to fully charge an iPhone?

Depending on the model and the charger being used, an iPhone will take a different amount of time to charge completely. On average, a typical Apple charger needs two to three hours to fully charge an iPhone.


There you have it. Hopefully you get the solution helpful. Let’s wrap up with some useful suggestions from an expert, Apple always suggests not to fully recharge or drain your iPhone’s battery.

And, if you intend to preserve your device for a somewhat lengthy period, turn it off and put it in a dry, cold location that is less than 90° F (32° C). Besides, if you want to keep it for six months or more, charge it roughly 50% every six months.

Over time, a battery’s capacity to deliver “peak power,” or its maximum immediate performance, may deteriorate. Therefore, don’t be afraid to get in touch with a professional if you notice any strange problems with your iPhone.

Md Mehedi Hasan

Hello, Mehedi here! I love Apple devices and everything that comes with it. I've been using iPhones from the early days of iPhone 5s, and since then, I've kept myself updated with the latest Apple updates, accessories, different issues, and their fixes. I truly believe that every issue with iPhones can be fixed, and you'll find these solutions here at Techiaid.

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