How to Fix iPhone 16 Pro Max Not Charging Overnight

Following the iPhone 16 series launch, new users have reported problems with the iPhone 16 Pro Max, such as overheating or battery draining fast. One peculiar issue they face is the overnight charging problem, where their phones seem to lose charge overnight, despite showing that they are connected and charging. Interestingly, the issue doesn’t occur during daytime charging sessions, where the phone charges as expected.

Users have noticed that even with the charging icon displayed and Optimized Battery Charging turned off, the phone’s battery percentage drops overnight. This happens across different MagSafe chargers, further complicating the problem. Screenshots from the battery section of the iPhone show that it is “charging,” yet the battery drains, leading to confusion and frustration for users.

There are several reasons why your iPhone may not be charging. However, the issue with the overnight charging compared to daytime is rather odd.

This guide will walk you through possible solutions to fix this problem and ensure your phone charges effectively while you sleep.

While you may be using the same MagSafe charger that worked perfectly with your iPhone 15 Pro Max, the iPhone 16 Pro Max might have updated hardware that affects compatibility. Make sure your charger is optimized for the latest MagSafe technology. Also, inspect for wear and tear or damage to the charger.

If you’re using an iPhone 16 Pro Max case, make sure it is compatible with MagSafe and does not hinder its wireless charging functionality.

Additionally, the following tips could solve your overnight charging dilemma:

• Try a Different Charger: Test another charger, preferably one certified for MagSafe or an official Apple charger, to see if the issue persists.

• Check the Adapter: Ensure that the charging adapter is in good working condition, as sometimes the issue might stem from the adapter rather than the charger itself.

• Invest in a MagSafe Case: If you want to protect your iPhone 16 Pro Max from wear while charging wirelessly, use a slim case with full functionality of MagSafe.

Some users report that positioning their iPhone 16 Pro Max on a MagSafe charger can impact how well it charges overnight. Standby Mode, introduced in iOS 17, is a useful feature but might interfere with charging if the iPhone isn’t properly aligned.

Here’s a detailed solution:

• Vertical Charging Position: If charging horizontally doesn’t work, try placing your phone vertically. This could help with alignment on the MagSafe charger, ensuring the charging coils connect correctly.

• Turn Off StandBy Mode: To avoid any interruptions, go to Settings > Standby Mode and toggle it off, especially if you charge your phone horizontally.

Temperature largely affects how your iPhone 16 Pro Max charges. Overheating or charging in extreme temperatures can slow down or halt charging altogether.

To improve charging capabilities, adopt the following practices:

• Maintain a Stable Environment: Make sure your iPhone is charging in a room with moderate temperature. Avoid placing it on soft surfaces like pillows or blankets, which can cause overheating.

• Cool Down Before Charging: If your phone feels warm, let it cool down before placing it on the charger.

Sometimes, your iPhone might not charge overnight due to software glitches or bugs, especially if you’ve recently updated your device. The charging icon may show up, but the phone might stop charging after a few hours due to system processes.

These simple fixes can help solve the issue:

• Restart Your iPhone: A quick restart can help reset any charging bugs.

• Update iOS: Go to Settings > General > Software Update to ensure you’re running the latest iOS version, as software updates often include bug fixes for charging issues.

Specific settings, such as optimized battery charging and background app refresh, could affect your iPhone's ability to charge overnight. To fix this:

• Turn Off Optimized Battery Charging: This feature learns your charging habits and delays charging past 80% until you need it. To turn it off, go to Settings > Battery > Battery Health & Charging and toggle off Optimized Battery Charging.

• Disable Background App Refresh: If apps are running in the background, they could drain your battery while your phone is charging. Go to Settings > General > Background App Refresh and turn it off for non-essential apps.

Even if your MagSafe charger appears to work, an issue with your cable or the Lightning port may be preventing proper overnight charging.

Check for frays, bends, or damage along the cable. Replacing a damaged cable could also fix the issue. Additionally, clean the charging port, as dust or debris inside can interfere with charging. Gently clean the port using a toothpick or a soft brush.

If you’re having difficulty with your MagSafe charger, switch to a wired charging setup temporarily. This can help you determine if the issue lies with your MagSafe system or the phone itself.

Test it with a USB-C cable. Plug your phone into a standard USB-C charger overnight to see if the battery level increases normally.

If none of the solutions above work, there could be a hardware issue with your iPhone 16 Pro Max, such as a defective battery or charging coil.

In this case, contact Apple Support. If you suspect a hardware issue, it’s best to reach out or visit an authorized service provider for a thorough inspection.

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