Apple A1720 18W USB-C Power Adapter Reports of Thermal Failure and Melting Hazard

February 12, 2026 — An official Apple Model A1720 18W USB-C Power Adapter has been reported to have suffered a severe thermal failure, resulting in melted housing, a strong burning odor, and dangerous overheating. This incident highlights a significant fire and electrocution hazard, prompting concerns about internal safety and heat-regulation circuits in the adapter.

Product Details

Product Name: Apple A1720 18W USB-C Power Adapter

Manufacturer: Apple Inc.
Incident Report Number: 20260121-41961-2147324355

Farzan Law Serving Clients Across California

Incident Overview

On January 21, 2026, an official Apple Model A1720 18W USB-C Power Adapter experienced a severe thermal failure while plugged into a surge protector. The user reported that the adapter’s plastic housing partially melted and became visibly deformed. During the incident, the unit emitted a strong electrical burning odor and became dangerously hot to the touch.

Prior to reporting, the user independently tested the surge protector using a voltmeter/tester, confirming that all outlets were in normal operating range and outputting stable power. The surge protector itself remained undamaged and fully functional, leading the user to conclude that the failure originated internally within the Apple Model A1720 adapter’s safety and heat-regulation circuits. The event occurred while the adapter was plugged in, potentially while idle and not actively charging a device.

This incident has been reported to the CPSC due to its representation of a significant fire and electrocution hazard under normal operating conditions. The reporter also expressed concern that this hardware failure should be tracked for potential degradation patterns in older Model A1720 units.

Safety Concerns

This thermal failure poses several serious safety concerns for consumers:

  • Fire Hazard: The melting plastic and emission of a strong burning odor indicate extreme internal heat, presenting an immediate and significant risk of fire, especially if the adapter is left unsupervised or near flammable materials.
  • Electrocution Hazard: While the report does not detail direct electrocution, a severe internal failure leading to melting components can compromise insulation and expose live electrical parts, increasing the risk of electric shock upon contact.
  • Property Damage: The intense heat generated can damage surrounding surfaces, furniture, or other electronic devices, potentially leading to costly property damage beyond the adapter itself.
  • Unpredictable Failure: The incident occurring possibly while the adapter was idle suggests that the failure can happen without active use, making it an unpredictable and pervasive risk under normal operating conditions.
  • Widespread Risk: If this failure is linked to degradation patterns, as suggested by the reporter, older units of the Model A1720 could be prone to similar incidents, affecting a larger consumer base.

What Consumers Should Do

Consumers who own an Apple Model A1720 18W USB-C Power Adapter should take immediate precautions:

1. Discontinue Use Immediately: If you possess an Apple Model A1720 18W USB-C Power Adapter, especially if you notice any signs of overheating, deformation, discoloration, or a burning smell, cease using it immediately and unplug it from the power source.
2. Identify Your Adapter: Check the model number on your Apple power adapter. The model number (A1720) is typically printed on the adapter itself, usually on the side with the prongs.
3. Do Not Attempt Repairs: Do not try to repair a damaged or malfunctioning adapter yourself. Tampering with electrical components can be dangerous.
4. Report Incidents: If you experience a similar incident or suspect your adapter is defective, report it to the U.S. Consumer Product Safety Commission (CPSC) at www.cpsc.gov. Providing detailed reports helps identify potential widespread issues.
5. Contact Apple: Reach out to Apple Support for guidance on replacement or recycling of potentially defective units.

Manufacturer’s Response

No manufacturer response has been provided in the incident report.

Legal Help Available

If you or a loved one has been injured by a defective product or suffered property damage due to a product malfunction, you may be entitled to compensation. The experienced product liability attorneys at Farzan Law understand the complexities of defective product cases and can help you navigate the legal process. Farzan Law is a California based Personal Injury law firm focusing on protecting the rights of those wrongfully injured.

Licensed to practice law ONLY in California.

Contact us today for a free consultation: 424-325-3112

Our legal team has successfully represented clients in product liability cases involving defective appliances, automotive defects, medical devices, and consumer products. We work on a contingency fee basis, which means you don’t pay unless we win your case.

Note: This information is based on incident reports provided by the U.S. Consumer Product Safety Commission. If you find information that is incorrect, please contact us immediately so we can correct the post to reflect accurate information.

Disclaimer: The information provided in this post is not intended to be legal or medical advice. This article is based on publicly available incident reports. The incidents mentioned have not necessarily been independently verified or adjudicated.

Schedule Your Free Consultation Now

By submitting this form, you agree to our Terms & acknowledge our Privacy Policy

Scroll to Top