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Check charging accessory

Google Pixel "Check charging accessory": cable or adapter

Verified with sources2 sourcesReviewed Oct 4, 2026
Technician coming? See the 2 steps they must show you
Google Pixel Android phones, rear view
IXTA9839CC BY-SA 4.0Image source

Risk level

Low

Usually safe to check without specialist tools.

Urgency

Low

Quick answer

Your Pixel says Check charging accessory because the cable or USB power adapter may be damaged or not supported, which can make it charge very slowly or not at all. Remove the case, try another cable and adapter, and check the port for lint.

Safety first

Stop and check this first

  • Do not take the battery out yourself: Google recommends taking it to an authorized repair partner.

Safe checks you can perform

  • Test the cable and adapter
  • Check the outlet and the adapter power
  • Turn off Charging optimization

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Battery work only by an authorized repair partner
  • Do not attempt this professional task: Repair request with Google

What a technician must be able to justify

Technician visit

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Battery work only by an authorized repair partner

    What they doIf the battery needs attention, an authorized repair partner handles it.

    They must show youthe battery test result.

    In writingwhether the battery is replaced and why.

  2. Repair request with Google

    What they doIf the phone still charges slowly with a known good cable, adapter and outlet, check repair options and warranty status through Google's Start a repair process.

    They must show youthe charging test result.

    In writingthe warranty status, the repair offered and any part replaced.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Follow these steps

Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. Test the cable and adapter

    No special tools

    Who:
    you.
    How:
    remove the case, plug the cable firmly into both ends and check the port for dust or lint. Try the same adapter and cable on another device, then try another cable or adapter on the Pixel.
    Result that matters:
    whether the message disappears with a different set.
    If it does:
    the first cable or adapter was damaged or not supported.
    If it appears with every set:
    test the outlet and the settings.
    Evidence to keep:
    Which cables and adapters you tried.

    Evidence: Fix a Pixel phone that won't charge or turn on

  2. Check the outlet and the adapter power

    No special tools

    Who:
    you.
    How:
    plug something else, like a lamp, into the outlet. Use a Google 30W USB-C adapter or another USB PD adapter of 15W or more.
    Result that matters:
    whether the outlet works and the adapter meets the power Google recommends.
    If the outlet is dead:
    use another outlet.
    If the outlet and adapter are fine:
    check Charging optimization.
    Evidence to keep:
    Adapter model and rated power.

    Evidence: Fix a Pixel phone that won't charge or turn on · Charge your Pixel phone

  3. Turn off Charging optimization

    No special tools

    Who:
    you.
    How:
    open Settings > Battery > Battery health > Charging optimization, turn it off and charge again.
    Result that matters:
    whether the phone now charges faster or to full.
    If it does:
    the optimization was limiting the charge.
    If it still charges slowly with a good accessory:
    start a repair with Google.
    Evidence to keep:
    Battery level reached and time taken.

    Evidence: Fix a Pixel phone that won't charge or turn on

Still not solved

If the error persists, stop here. See what the technician must do and show you.

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Phones and tablets
Brand
Google
Product type
Android phones and tablets

Known code variants

  • Comprueba el accesorio de carga
  • Pixel carga muy lento
  • Pixel charges very slowly
  • Pixel charging slowly
  • Pixel Check charging accessory
  • Pixel no carga
  • Pixel not charging

What it means

Google says this notification means the cable or USB power adapter may be damaged or not supported by the phone, which can cause very slow charging or none. Other reasons it lists are a case that interferes, dust or lint in the port, a power outlet that does not work and Charging optimization limiting the charge. Google recommends its 30W USB-C adapter or a PPS adapter of 30W or more, or other USB PD adapters of 15W or more, and notes that actual speeds vary. The message points at the accessory, not at the battery.

Warnings and stop conditions

  • Highsource verified

    Do not take the battery out yourself: Google recommends taking it to an authorized repair partner.

    Evidence: Charge your Pixel phone

Symptoms and causes

Probable causes · in order

  • Damaged or unsupported cable or adapterCommon

    The same cable or adapter also charges another device badly, and the Pixel charges normally with a different set.

    Evidence: Fix a Pixel phone that won't charge or turn on

  • Case or dust in the portPossible

    The plug does not seat fully with the case on, or there is lint in the port; charging improves without the case or after cleaning.

    Evidence: Fix a Pixel phone that won't charge or turn on

  • Outlet without powerPossible

    Another device, such as a lamp, does not work on the same outlet either.

    Evidence: Fix a Pixel phone that won't charge or turn on

  • Charging optimizationPossible

    The phone charges but slowly or stops before full; it reaches 100% once Charging optimization is off.

    Evidence: Fix a Pixel phone that won't charge or turn on

Virtual technician

Does Check charging accessory still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Sources and technical references

  1. 1
  2. 2

    Charge your Pixel phone

    Google · 2026 · official_doc

Sources: Fix a Pixel phone that won't charge or turn on · Charge your Pixel phonereviewed 2026-10-04 · verified

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