F-500 EA® Application

Residential & High-Rise
Lithium Fire Risks

The same lithium battery technology powering e-bikes, scooters and EVs is now entering apartment buildings, car stackers and high-rise car parks every single day — and most buildings aren't equipped to handle what happens when one of those batteries fails.

The Risk

A New Fire Hazard in Every Building

Australian apartment buildings and high-rises were designed and built around a very different set of fire risks. The sprinkler systems, fire ratings and suppression infrastructure most buildings rely on were engineered before lithium-ion batteries became part of everyday life.

Now those same buildings are home to hundreds of residents who park e-bikes in the lobby, charge scooters in the hallway, leave delivery e-bikes in the basement and park EVs in car parks and automated car stackers — often overnight, often unattended, often in areas the building's suppression system was never designed to protect.

When a lithium battery goes into thermal runaway in a confined space, inside a building, surrounded by residents — the consequences can be catastrophic. And because lithium fires generate their own oxygen, conventional sprinkler systems running plain water can slow the spread but can't kill the fire at its source.

Lithium fires generate their own oxygen — conventional sprinklers can't extinguish them, only contain spread
Toxic gas release — hydrogen fluoride and other gases from burning batteries endanger residents floors above
Re-ignition hours later — a battery that appears extinguished can reignite long after the fire brigade leaves
Structural risk — sustained high-heat lithium fires can compromise structural integrity of floors and columns
Hazard to first responders — firefighters entering a burning car stacker or basement car park face unique dangers from lithium battery fires

Why High-Rise Buildings Are Especially Vulnerable

A fire on the ground floor of a 30-storey building doesn't stay on the ground floor. Stairwells and lift shafts act as chimneys. Smoke and toxic gas travel upward. Residents above can be affected long before they're aware of what's happening below. The higher the building, the higher the consequence of a fire that can't be put out quickly at the source.

The Grenfell principle applies here. In Australia, the combustible cladding crisis revealed just how fast fire can travel up the exterior of a high-rise. A lithium fire that escapes a basement car park and reaches flammable external cladding is a scenario no building manager should be comfortable with.

Body corporates and building managers are increasingly being asked by insurers to demonstrate their lithium fire risk mitigation strategy. This is a question that's only going to get harder to avoid.

Hazard Sources

Where the Lithium Risk Is Coming From

It's not just EVs. The lithium battery hazard in residential buildings is arriving from multiple directions — and it's growing every year.

🛴

Electric Scooters & E-Bikes

Students, commuters and delivery drivers bring these into buildings every day — stored in lobbies, hallways, on balconies and in basement storage cages. Many use cheap, uncertified chargers. This is where some of the most serious residential lithium fires have started in Australia and globally.

📦

Delivery Rider E-Bikes

Food delivery riders park their e-bikes in apartment building car parks, loading docks and common areas while making deliveries. These bikes are often commercial-grade, high-capacity battery units that are charged hard and fast — a high-risk combination in an enclosed space.

🚗

EVs in Basement Car Parks

As EV uptake grows, apartment car parks are filling with vehicles carrying large, high-energy lithium battery packs. These cars charge overnight in confined, often poorly ventilated basement levels — directly beneath the building structure and its residents.

🏗️

Automated Car Stackers

Car stackers are one of the most challenging fire scenarios in a high-rise. Vehicles are stacked multiple levels deep with no sprinkler access to the higher platforms. If an EV in a stacker goes into thermal runaway, retrieving it or suppressing the fire is extremely difficult — and the heat generated can spread rapidly through the structure.

🛹

Electric Skateboards & Personal Devices

Electric skateboards, hoverboards, e-unicycles and similar devices are common in younger apartment populations. These often use unregulated batteries and chargers purchased online, and are frequently charged indoors, overnight, in bedrooms — the highest-risk possible scenario.

🔋

Building Energy Storage Systems

More new apartment buildings and strata complexes are installing lithium battery energy storage systems for solar and peak-load management. These BESS units in plant rooms and basement levels represent a concentrated, high-energy lithium hazard that requires specialist suppression.

Critical Risk Factor

Flammable Cladding & Structural Damage

Australia still has thousands of buildings clad with aluminium composite panels containing a polyethylene core — the same material identified after the Grenfell Tower disaster in London. Audits have been underway but remediation is incomplete. Many buildings are still waiting.

A lithium battery fire that escapes a basement car park or ground-floor storage area and reaches the external facade of a building with unresolved combustible cladding is a catastrophic scenario. Lithium fires burn extremely hot. They can generate enough heat to ignite cladding that might not be reached by a smaller, conventional fire — and once cladding ignites, suppression becomes a major operation for the fire brigade, not a building system.

Getting the battery fire under control fast — before it spreads — is the most important thing a building's suppression system can do. F-500 EA® gives you the best chance of doing that.

Hazards to First Responders

Firefighters attending a lithium battery fire in a high-rise face specific dangers that conventional training doesn't fully prepare for:

Hydrogen fluoride gas — released by burning lithium batteries, highly toxic even at low concentrations
Re-ignition risk — batteries that appear extinguished can reignite hours later, endangering crews still on site
Car stacker access — vehicles stacked multiple levels high are inaccessible to hose streams without specialist equipment
Structural compromise — sustained lithium fires generate enough heat to weaken concrete and steel in basement structures
Confined space risk — basement car parks are enclosed environments with limited ventilation, concentrating toxic gases

The Solution

What F-500 EA® Does That Plain Water Can't

F-500 EA® is one of the few agents proven to rapidly cool a lithium-ion battery fire, stop thermal runaway spreading to adjacent cells and prevent re-ignition. That's what makes it the right choice for high-rise and residential environments where speed matters most.

Fixed Protection

Diamond Doser® + Existing Sprinklers

The most practical upgrade a building can make. The Diamond Doser® connects to your existing sprinkler system — there's no need to replace or redesign your infrastructure. The moment a sprinkler head activates, F-500 EA® is automatically dosed into the water stream. No electricity required. No manual intervention.

  • Retrofits to your existing sprinkler system
  • Automatic — activates the moment a head opens
  • Protects basement car parks and car stacker areas
  • Dramatically reduces the heat and duration of a lithium fire
  • Helps prevent spread to cladding and structure
Enquire About Your Building

Portable Response

F-500 EA® Extinguishers & TKO Nozzles

For building managers, security staff and fire wardens who need immediate first-response capability. F-500 EA® extinguishers positioned in car parks, storage areas and near charging points give your team the right tool to attack a lithium fire before it escalates — rather than standing by with a water extinguisher that won't do enough.

  • Portable extinguishers for car parks and common areas
  • TKO Nozzle attaches to any building hose reel
  • Works on e-bikes, scooters, EVs and stackers
  • Reduces re-ignition risk for arriving fire brigade
  • Easy to train building staff to use
View Product Range

Who Should Be Thinking About This Right Now

🏢
Strata Managers & Body Corporates

Responsible for the fire safety of shared spaces — car parks, lobbies, storage areas. Lithium fires are now a foreseeable risk that needs to be in your risk register.

🏗️
Developers & Builders

Specifying F-500 EA® suppression into new high-rise and mixed-use developments is the right call for any building that will house EV charging or have significant lithium device use.

🏨
Hotels & Serviced Apartments

Guests arrive with e-bikes, scooters and EVs and charge them in car parks and rooms. Short-stay accommodation faces the same lithium risk as residential buildings — often with less control over what guests bring.

🏫
Student Accommodation

Students are among the heaviest users of e-bikes, scooters and electric personal devices. Purpose-built student accommodation buildings face concentrated lithium hazard risk, particularly in storage and charging areas.

Get Protected

Talk to DoserTech About Your Building

Whether you manage a single apartment block or a portfolio of high-rise buildings, we can walk you through what a lithium fire risk assessment looks like for your properties and what it would take to bring your suppression capability up to where it needs to be.

Get in Touch View Products