Is Your Portable Charger a Fire Hazard? Understanding the Health Canada Power Bank Recall

If you have a portable charger purchased from Winners, Marshalls, or HomeSense sitting in a bag, on a desk, or plugged in beside your bed, this article is worth your attention. In late August 2026, Health Canada issued a recall affecting approximately 30,000 power banks distributed through these major Canadian retail chains, citing a risk of the internal lithium-ion batteries overheating and melting at the charging port — creating a genuine fire and burn hazard for consumers.

Portable power banks are part of everyday life for millions of Canadians. They charge phones on the go, keep laptops running on long flights, and power medical devices during outages. Their convenience is also their risk: most people give little thought to how lithium-ion batteries behave when something goes wrong. This article explains what happened, why lithium-ion battery fires are a distinct category of hazard, and what you can do to protect your household.

What Happened: The Health Canada Power Bank Recall

As reported by Daily Hive on August 28, 2026, Health Canada announced a recall of approximately 30,000 portable power banks that had been sold through Winners, Marshalls, and HomeSense stores across Canada. The affected units were flagged because of a defect that could cause the lithium-ion battery cells to overheat and the charging port to melt — conditions that present a direct risk of fire and burns to users.

The recall follows a well-established pattern in lithium-ion battery product safety: defects in manufacturing, substandard cell quality, or inadequate thermal management systems can turn a routine charging session into a dangerous event. Health Canada's action is consistent with its mandate to protect Canadians from foreseeable product hazards, and consumers who own an affected unit are advised to stop using it immediately and follow the return or disposal instructions provided by the retailer or Health Canada directly.

If you purchased a portable power bank from any of these three retail chains and are uncertain whether it is affected, check the Health Canada recall database or contact the retailer for guidance.

Why Lithium-Ion Battery Fires Are Different

A lithium-ion battery fire is not the same as a paper fire, a grease fire, or even most electrical fires. Understanding the distinction matters, because the standard responses people reach for — water, a conventional fire extinguisher, smothering with a blanket — may be insufficient or inappropriate depending on the stage and scale of the event.

The core hazard is thermal runaway. This is a self-reinforcing chemical reaction that occurs inside a battery cell when it is damaged, overcharged, exposed to excess heat, or reaches the end of its service life under stress. Once thermal runaway begins, the battery generates its own heat from within, independent of any external flame source. Temperatures inside the battery can escalate rapidly, and the reaction can spread from cell to cell within a battery pack.

Several properties make lithium-ion battery fires particularly difficult to manage:

• Self-generated heat. Because the heat source is internal and chemical, simply removing a flame source or cutting off oxygen does not stop the reaction. The battery continues to generate heat from within.
• Reignition risk. A battery that appears extinguished — with no visible flame — can reignite if internal cell temperatures remain elevated. This can occur minutes or even hours after initial suppression, making premature assumptions about a resolved fire genuinely dangerous.
• Toxic off-gassing. Thermal runaway releases a mixture of flammable and toxic gases, including hydrogen fluoride. In an enclosed space — a bedroom, a car, a small office — this creates a hazard that extends beyond the fire itself.
• Variable behaviour. Not every lithium-ion battery fire progresses the same way. The battery chemistry, cell count, state of charge at the time of failure, and the physical environment all affect how quickly and severely a fire develops. A small power bank and a large e-bike battery pack are both lithium-ion devices, but their failure modes and risks differ substantially.

This is not meant to alarm — the vast majority of lithium-ion batteries in daily use perform safely throughout their service life. But it does mean that when something does go wrong, the response requires more care and knowledge than most people currently have.

Who Is Most at Risk

The Health Canada recall is a consumer product issue, which means the people most immediately affected are ordinary Canadians in their homes, offices, and daily routines — not industrial facilities or commercial properties.

Households with multiple devices are particularly exposed. Phones, tablets, laptops, wireless earbuds, and portable power banks all rely on lithium-ion batteries. Many households charge several devices simultaneously, often overnight, often on or near soft furnishings like beds and couches.

Remote workers and students who carry portable chargers daily and rely on them as backup power throughout the workday may not inspect their equipment regularly or notice early signs of degradation.

Travelers who keep power banks in bags, backpacks, and luggage are often charging in environments with limited ventilation or supervision — hotel rooms, aircraft overhead bins, or vehicle seat pockets.

Elderly residents and people with mobility limitations may face greater difficulty evacuating quickly if a battery fire starts overnight, making early detection and appropriate equipment even more important.

The common thread across these groups is proximity and inattention: lithium-ion devices are used close to people and soft materials, often during periods when the user is asleep, distracted, or not present.

Prevention and Practical Preparedness

The good news is that the risk from consumer lithium-ion batteries is meaningfully reducible through straightforward practices. None of the following requires specialized knowledge — only consistent attention.

Inspect your portable chargers and power banks regularly. Physical swelling or deformation of the battery casing, unusual warmth during or after charging, a chemical or sweet smell, or visible damage to the charging port are all warning signs. Any device showing these symptoms should be removed from service immediately and not placed back in a bag or drawer where it could continue to degrade.

Use manufacturer-approved charging cables and adapters. Third-party and counterfeit charging accessories are a significant contributor to battery failures. The cable and adapter you use matter — they affect the rate of charge and the thermal load placed on the battery.

Do not charge devices on soft, combustible surfaces. Charging a phone or power bank on a bed, couch, under a pillow, or inside a bag limits heat dissipation and creates a direct fire pathway if the battery overheats. Charge on hard, flat, non-combustible surfaces in open air where possible.

Avoid leaving devices charging unattended for extended periods, particularly overnight. Most devices are designed to stop drawing current once fully charged, but degraded or defective batteries may not regulate this process correctly. Where possible, charge during waking hours when you can observe the device.

Remove recalled or damaged devices from service immediately. If your power bank is subject to the Health Canada recall, follow the official guidance for return or disposal. Do not continue using the device, and do not dispose of lithium-ion batteries in household waste — most Canadian municipalities have designated drop-off locations for battery recycling.

Know your household's fire response basics. Ensure working smoke detectors are installed and tested regularly. Know the location of your nearest exit. Consider whether your household has any specialized equipment for early fire response.

Fire-Response Considerations for Personal Electronics

Most Canadian households are not equipped for a lithium-ion battery fire beyond a standard smoke detector. That is a reasonable starting point, but it is worth understanding the limitations of conventional first-response tools when a battery is involved.

Standard dry chemical fire extinguishers (ABC-rated) are effective across a range of common fire types, but they are not purpose-designed for lithium-ion battery fires. They can suppress visible flames while the battery continues to experience thermal runaway internally — which creates reignition risk if the situation is treated as resolved.

For households, offices, and vehicles where lithium-ion devices are regularly charged or stored, there are specialized tools worth considering as part of a broader safety approach.

AVD lithium-ion battery fire extinguishers use Aqueous Vermiculite Dispersion, an agent formulated to coat battery cells and absorb heat, working to interrupt the thermal runaway process rather than solely suppressing surface flames. Compact AVD extinguishers — such as a 2L unit — are sized for home and vehicle use and represent a meaningful upgrade in preparedness for anyone regularly handling lithium-ion devices.

AVD fire blankets designed for lithium-ion batteries can be deployed over an overheating or burning device to help contain flames, reduce heat radiation, and limit the spread of fire and gases within a room. In a home setting, this can buy critical time for evacuation and emergency service response.

It is important to be clear: no fire extinguisher or blanket offers a guarantee of complete suppression for every lithium-ion battery fire. Battery fires involving large, fully charged packs in advanced thermal runaway present challenges that go beyond what any consumer product can reliably address. These tools are intended to support a first-response and evacuation strategy — not to replace professional fire service response or eliminate the need for early evacuation.

How LithiumSafe Fire Can Help

LithiumSafe Fire is a Canadian supplier focused specifically on lithium-ion battery fire safety equipment and education. As lithium-ion devices have become embedded in daily Canadian life — from power banks and laptops to e-bikes and EVs — LithiumSafe Fire has built a product range designed to give households, workplaces, and property managers practical tools for improved preparedness.

The product range includes AVD fire extinguishers in sizes appropriate for home, vehicle, and commercial use, as well as AVD fire blankets for device-level containment. The focus is on equipment that is informed by how lithium-ion battery fires actually behave — not repurposed general-purpose fire tools.

The goal is not to create alarm, but to close a genuine gap in preparedness that the Health Canada recall has made visible. Millions of Canadians carry and charge lithium-ion devices daily without giving much thought to what happens when one fails. A modest investment in appropriate equipment and better habits can meaningfully improve the outcome if it does.

Take the Next Step

If the Health Canada power bank recall has prompted you to think more carefully about how your household handles lithium-ion battery safety, that is a productive starting point. A few practical actions worth taking now:

• Check whether any of your portable chargers or power banks were purchased at Winners, Marshalls, or HomeSense and verify their recall status.
• Review how and where you currently charge lithium-ion devices in your home.
• Explore whether a compact AVD extinguisher or AVD fire blanket makes sense for your household or workspace.

LithiumSafe Fire's team is available to answer questions about lithium-ion battery fire safety and help you identify equipment appropriate for your situation. Browse our lithium battery fire protection products or get in touch directly for guidance.

Sources

• Daily Hive — Power Banks Recalled in Canada (August 28, 2026)
• Health Canada Recalls and Safety Alerts Database