US Trends

how to turn off slow charger iphone

You can’t literally “turn off” a built‑in “slow charger” mode on an iPhone, but you can turn off (or bypass) the features and situations that make it charge slowly and cause “Slow Charger” style alerts. Below is a post‑style breakdown tailored to your query.

How to Turn Off Slow Charger iPhone

Quick Scoop

If your iPhone is showing “Slow Charger” or just charging painfully slowly, it’s usually because of one of three things:

  • Underpowered charger or bad cable
  • iOS battery‑saving / battery‑health features
  • A software setting like Clean Energy or Optimized Charging that’s deliberately slowing things down

You can’t flip a single “slow charger off” switch, but you can remove almost everything that’s causing it.

1. Understand what “Slow Charger” really means

Newer iOS versions can show a “Slow Charger” or similar warning when the phone detects that the power source isn’t capable of fast charging (for example, a 5W brick, weak USB port, or low‑quality adapter). This is not a separate mode you turned on; it’s a status message. In practice, the main causes are:

  • Using an old 5W or 10W adapter instead of 20W+
  • Using a low‑quality/old cable
  • Charging from a low‑power USB port (laptop, car, cheap power strip)

If you want to “turn it off,” what you’re really doing is giving the iPhone a proper charger so it no longer has a reason to complain.

2. The hardware fix: stop giving it a slow charger

These steps are the closest thing to “turning off slow charger” at the hardware level:

  1. Use a 20W or higher adapter
    • For iPhone 8 and later, a 20W USB‑C power adapter and USB‑C to Lightning (or USB‑C to USB‑C on newer models) unlock fast charging.
  2. Replace the cable
    • If your cable is frayed, uncertified, or off‑brand cheap, swap it for an MFi‑certified or Apple‑branded cable.
    • A weak cable can make the phone drop to a much lower charging speed.
  3. Avoid low‑power USB ports
    • Desktop front USB ports, old laptops, and some car ports often provide very little power.
    • Plug into a wall charger or a powered hub that’s rated for phones.
  4. Clean the charging port (carefully)
    • Lint and dust can partially block pins, making the phone think it’s on a weak connection.
    • Power off the phone and gently clean the port with a wooden toothpick or soft brush.

If you do the above and still get “Slow Charger,” the phone is almost certainly telling the truth about that charging source.

3. Turn off software features that can slow charging

This is the “settings” layer—the part that feels most like “turning off slow charger iPhone.”

A. Turn off Optimized Battery Charging

Optimized charging learns your routine and slows down or pauses charging around 80% to protect battery health. If you’re in a hurry, it feels like slow charging.

  • Go to Settings → Battery → Battery Health & Charging.
  • Turn Optimized Battery Charging Off (you’ll usually see options like “Turn Off Until Tomorrow” or “Turn Off”).

This lets the phone charge straight through to 100% instead of holding back.

B. Turn off Charge Limit / Clean Energy Charging (if available in your

region)

Some newer iOS features try to charge when “cleaner” energy is available or cap charging for battery longevity. That can cause slower charge or delayed charge.

  • Go to Settings → Battery.
  • Look for options like Clean Energy Charging , Charge Limit , or similar.
  • Turn them Off if you want maximum speed rather than eco/battery optimization.

Note: Names can vary slightly by iOS version and region, but anything related to “clean energy” or “charge limit” is a candidate.

4. Make your iPhone charge as fast as possible (so it never feels “slow”)

Even with the right charger, you can get “real world” slow charging if the phone is burning power as fast as it’s taking it in. To avoid that:

  1. Stop using the phone while charging
    • Heavy tasks (games, video, GPS, social media scrolling) eat power and make charging seem slow.
  2. Turn on Airplane Mode while charging
    • Swipe into Control Center and tap the airplane icon, or go to Settings → Airplane Mode and turn it on.
    • This cuts most wireless activity and helps power go into the battery rather than radios.
  3. Lower screen brightness
    • High brightness is a huge battery drain.
    • Pull down Control Center and drag the brightness slider down.
  4. Turn off unnecessary background activity
    • Enable Low Power Mode in Settings → Battery to reduce background refresh, mail fetch, etc.
  5. If you really need speed: charge it powered off
    • Power off the phone, then plug it in.
    • With everything off, nearly all the power goes into charging.

These don’t change any “slow charger” setting; they just ensure that even a decent charger feels fast in everyday use.

5. When it’s not a setting or charger: signs of a deeper issue

If you’ve:

  • Swapped to a 20W+ charger and good cable
  • Turned off Optimized Charging / Clean Energy features
  • Reduced usage while charging

…and the phone is still dramatically slow, you may have:

  • Battery wear – A very degraded battery can charge oddly and slowly.
  • Port damage – Bent pins or liquid damage can force the phone to restrict charging.
  • Internal hardware issue – For example, a damaged charging IC.

In those cases, your best moves are:

  • Run a Battery Health check in Settings → Battery → Battery Health & Charging. If maximum capacity is very low, a replacement battery can restore speed.
  • Visit an Apple Store or authorized service provider for a hardware assessment.

6. “Latest news” and forum talk about slow charger alerts

In recent iOS updates, there’s more attention on:

  • Explicit “Slow Charger” alerts on the lock screen when iOS detects underpowered accessories.
  • Battery‑friendly charging modes like Optimized Charging, Clean Energy Charging, and Charge Limits, which are good for longevity but sometimes annoy users who want fast charging all the time.
  • Forum discussions where users often discover that simply upgrading to a 20W+ USB‑C charger and turning off Optimized Battery Charging solves their “slow charger” woes.

Typical forum advice boils down to:

  • Use a proper high‑wattage brick.
  • Use a good cable.
  • Turn off any “smart” charging modes if you’re okay with more battery wear.
  • Avoid cheap adapters and random USB ports.

7. Quick checklist: “Turn off slow charger iPhone”

Use this as a mini cheat‑sheet:

  1. Change the charger
    • 20W+ USB‑C adapter, certified cable.
  2. Avoid weak power sources
    • Don’t rely on old laptop USB ports or car stereos.
  3. Turn off Optimized Battery Charging
    • Settings → Battery → Battery Health & Charging.
  4. Turn off Clean Energy / Charge Limit (if present)
    • Settings → Battery → related toggles.
  5. Charge while idle, in Airplane Mode, or powered off
    • For maximum real‑world charging speed.
  6. Check battery health and port condition
    • Replace battery or seek repair if needed.

Do these, and you’ve effectively “turned off slow charger” on your iPhone, even though the label itself is just a warning rather than a standalone mode.

Information gathered from public forums or data available on the internet and portrayed here.