Why use Lith-Ex Fire Extinguishers?

Why use Lith-Ex Fire Extinguishers?

Lith-Ex extinguishers have been specifically designed to tackle Lithium-Ion battery fires. These batteries can be found in electronic devices such as mobile phones, tablets and laptops, but also vaping machines, power tools, toys, electric scooters, e bikes and also cars.
Lithium-Ion battery fires can occur when there is thermal runaway which produces enough heat to eventually produce fire. This can occur as a result of electrical shorting, rapid discharge, overcharging, manufacturer defects, poor design or mechanical damage.
The storage of Lithium-Ion batteries in high volumes needs to be carefully managed through suppression, cooling, isolation, and containment. Whether you are storing them for goods distribution, battery collection bins, battery recycling, public services, battery charging stations etc.
Lithium-Ion battery fires are difficult to tackle as the design of the cells often prevent direct access of the extinguishing agent to the source of the fire.
Lith-Ex extinguishers contain Aqueous Vermiculite Dispersion (AVD), a revolutionary fire extinguishing agent. The water content of the extinguisher cools the fire source, while the Vermiculite platelets encapsulate the fuel source creating a thermal barrier to prevent propagation of the fire. The Vermiculite film is not electrically conductive. AVD is nearly twice as effective as water on a Class A fires and is environmentally friendly.

The LITH-EX EXTINGUISHER


The world’s first Fire Extinguisher to tackle Lithium ion battery fires such as mobile phones, tablets, laptops, toys, power tools and electric scooters.
    • – Designed for use on lithium battery fires up to a battery power rating of 250 – 500Wh
    • – Compact
    • – Lightweight
    • – Easy to store
    • – Non-toxic
    • – Environmentally friendly
Available in 500ML, 1L, 2L, 6L, 9L, 25L or 50L sizes.
Recommended Accessories
We also recommend the use of Heavy Duty Lithium Battery Fire Blankets which Provides safe storage and protection in transit, Working temperature up to 1000°C , Fire resistant technical fabrics and industrial stitching.
Lithium Battery Fire Suppression Kit  for the Safe storage of extinguished devices. Reduces the risk of explosion after the fire has been extinguished. Withstands temperature in excess of 1000°C
Lithium Battery Fire Resistant Container. Safe storage and transit of Lithium-ion battery packs, fireworks, and flammable chemicals. Acts as a thermal shield to reduce the threat of ignition from thermal conductivity.  

Get in touch for more information

The Importance of Regular Fire Safety Inspections and Maintenance – October 2021

It is vitally important to regularly inspect and maintain your buildings fire safety equipment. As a business owner, you are responsible for the safety of your building, employees and visitors. This includes the provision of adequate fire safety equipment and systems throughout the building. With more and more businesses returning to the office, it is essential to check that your fire safety equipment is regularly inspected.

Fire Extinguishers­

Fire Extinguishers need to be inspected and maintained by a competent person once a year in accordance with BS 5306. During these thorough checks your extinguisher is serviced and any necessary repairs are carried out or a replacement is recommended. A basic service would include checking it is in date, hasn’t been tampered with, is in good working order, is the correct weight and pressure and has the correct signage and positioning.

BS5306 recommends that fire extinguishers are tested by discharge every five years (water foam and powder) and refilled or replaced, and every ten years (CO2).  CO2 bottles are hydraulically tested at the ten year point, or the extinguisher is replaced.


It is also a requirement to keep a record of all servicing, maintenance and inspections of fire extinguishers.


Outside of the annual inspections, the responsible person for the premises should ensure that a visual inspection is carried out on all fire extinguishers monthly as follows;

    • – Check that the extinguishers are in the correct location
    • – Check that the anti-tamper seals are not missing
    • – Check the pressure gauge is in the green section
    • – Check for any damage to the extinguishers
    • – Confirm the operating instructions are legible
    • – Ensure the extinguishers not obstructed and are visible

RES extinguisher engineers are BAFE accredited (BAFE BS 5306 Part 3- Portable Extinguisher Maintenance).

Fire Alarms

British Standard: BS 5839 recommends any installed fire alarm system in your premises be maintained by a competent person at least twice a year. This includes detectors, call points and panels. A competent person is someone who has sufficient technical knowledge, understands the different types of fire alarms and how they work, is familiar with the makes and models, and has a good understanding of the legal requirements including the Regulatory Reform (Fire Safety) Order 2005 (RRO/FSO) and the BS 5839.

Routine fire alarm maintenance checks should be carried out by a competent person and include the following:

    • – Control panels
    • – Devices (sensors and detectors)
    • – Call points
    • – Voice alarms
    • – Batteries
    • – Reporting (Log book entry is a requirement)

RES provide fire alarm regular checks, servicing and maintenance. RES fire alarm engineers are BAFE accredited to BAFE SP203 – Fire Detection and Alarm System Modular Scheme SP203 – Part 1.

Emergency Lighting

Emergency Lighting is covered by BS EN 50172 / BS 5266-8 which provides guidance on the minimum level of testing dependant on the type of site you operate. Your responsible person should oversee the appropriate schedule.

Testing is as follows:


Monthly – Test all emergency lighting systems and ensure all luminaries and signs illuminate and are clean and present. A quick flick test is adequate.


Annually – To check that the lights remain illuminated for their full rated duration.


For safety reasons, the standards advise that the emergency lighting testing should be carried out at times of least risk to the buildings occupants or if possible, when the premises are unoccupied or in unoccupied portions of those premises.


RES provide Emergency Lighting Inspection and Testing, Fault Finding, Repairs and Regular Checks

RES fire alarm engineers are BAFE accredited to BAFE SP203 – Fire Detection and Alarm System Modular Scheme SP203 – Part 1.

Passive Fire Protection – Fire Doors

It is good practice to regularly inspect that your fire doors function correctly and that it will perform to its designed standard. Fire doors where traffic is high are more likely to be damaged and should be checked once a week/month (dependent on usage) by the responsible person for the property.


Periodic checks should be carried out every six months. Article 17 of the Regulatory Reform (Fire Safety) Order 2005 (RRO/FSO) makes it a legal requirement to ensure that fire resisting doors and escape doors are correctly installed and adequately maintained in order for them to be fit for purpose.


RES passive engineers are FIRAS Certified for Fire Door Maintenance.

Passive Fire Protection – Fire Stopping

According to FIRAS, fire protection measures can be degraded over time and it is the legal responsibility of the Responsible Person that the fire protection be adequately maintained. It is the responsibility of the responsible person to ensure that regular inspection takes place. Fire stopping is the compartmentation of a building bounded by fire resisting elements such as walls, floors and ceilings. Fire resisting elements are used around cables, pipes and ventilation systems.


We recommend your fire stopping is inspected every six months.


RES passive engineers are FIRAS Certified for Penetration Sealing (Fire Stopping).

Smoke Control / Automatic Opening Vents (AOVs)

Smoke vents have moving parts such as struts, hinges, pistons and actuators which remain stationary for long periods of time. As a result these systems can be prone to failure or fault. These systems should be regularly checked and subject to two maintenance visits per year to ensure they operate correctly.


RES undertake the servicing and maintenance of Smoke Control / Automatic Opening Vents (AOVs).

Dry Risers

BS 9990 requires that Dry Riser systems to undergo an annual static pressure test and inspection and a six monthly visual inspection, by a competent person. This ensures that the Dry riser system is maintained and functioning correctly for the fire brigade at all times.


RES can undertake dry riser servicing, testing and maintenance.

Fire Hydrants

BS 9990 requires that private fire hydrants to undergo an annual test and inspection and a six monthly inspection by a competent person to ensure the hydrant remains ready and in a working condition for brigade use. The Responsible Person should make periodical inspections of all Hydrants on a weekly and or a monthly basis.


Contact RES for ALL your Servicing, Testing and Maintenance needs.

This article is for general guidance only, please get in touch if you need assistance

Fire Extinguisher Service

A fire extinguisher is an essential piece of fire-fighting equipment that needs to work straight away when it is required by a user. It has to be reliable at all times – which means that business owners must ensure that fire extinguishers are regularly checked and serviced. As they are highly pressurised, fire extinguishers always carry the risk of bursting or causing injury to others. According to the Regulatory Fire Reform (Fire Safety Order) 2005, all fire-fighting equipment (including extinguishers), must be well-maintained and kept in efficient working order/repair.

Fire extinguisher servicing

There are two different types of fire extinguisher service – a visual inspection and annual maintenance. In a visual inspection, an inspector will check the location of the extinguisher to determine that it is located in the correct place, where it can be easily seen and accessed. The instructions will be checked to ensure that they are facing outwards where they can be easily and clearly read, and the overall condition of the extinguisher will be checked to determine whether it has already been used, and whether it has suffered any damage or has any missing parts. Tamper indicators are checked to see if they have been broken.
In an annual maintenance service, as well as a visual inspection, a fire extinguisher needs to be checked for corrosion, and assessed to see whether it needs to be refilled or re-pressurised. Most fire extinguishers (water, foam and powder) need discharge testing every five years. If you have a CO2 fire extinguisher, this will need a pressure test every 10 years to insure the cylinder is safe to continue to be pressurised and a new valve will be installed. You can have your extinguisher refurbished in this way, or in some cases it may be worth purchasing a new fire extinguisher.
As a business-owner, you are legally obliged to effectively maintain your fire-fighting equipment so that your staff and visitors are protected. At RES Protection Engineers, the servicing process is straightforward and affordable. When you have a fire extinguisher service with us, our BAFE registered technicians will carry out inspections and servicing in accordance with BS 5306. Following the service, you’ll receive the relevant documentation required. We can also service portable fire extinguishers, hose reels, trolley units and fire blankets to ensure that they are suitable for use in line with current legislation. All services are undertaken by BAFE registered technicians. We also offer an emergency call-out service, here for you 24 hours a day, 7 days a week.
Fire extinguisher sales and hire
Do you require a new fire extinguisher for your business? We can meet your requirements. All of our fire extinguishers are produced to European Standard EN3, and come with a five year guarantee. We offer discounts for large quantity orders. If you’d rather hire a fire extinguisher, we can provide hire services for up to six months.
Fire extinguisher service from RES
If you require fire extinguisher servicing, maintenance or repairs, RES engineers can carry out a comprehensive and affordable service. Our fire extinguisher services cover the South of England including the counties of Middlesex, Essex, Kent, East Sussex, West Sussex, Surrey, Hampshire, Dorset, Wiltshire, Gloucestershire, Berkshire, Oxfordshire, Buckinghamshire, Hertfordshire including London, Brighton, Portsmouth, Southampton, Winchester, Bristol, and the surrounding towns of Aldershot, Basingstoke, Beaconsfield, Bracknell, Cirencester, Egham, Farnham, Guildford, Henley on Thames, High Wycombe, Maidenhead, Marlow, Newbury, Oxford, Poole, Reading, Slough, St Albans, Staines, Swindon, Watford, Windsor, Woking, Wokingham and Worthing.

Fire Blankets

The importance of a fire blanket In the case of a fire, a fire blanket helps to control flames and extinguish fires that are most commonly caused by cooking oils in kitchens. You can also use a fire blanket if clothing is on fire, or if an item such as a waste bin has caught alight. By covering the fire with a fire blanket, the supply of oxygen is cut to the fire, minimising its spread. At RES Fire Protection Engineers, our fire blankets have been certified and tested to the most stringent requirements of BS EN 1869:1997. In a business premises, the most frequent location of a fire blanket is in a kitchen area, where cooking equipment is located. A fire blanket should always be positioned at least two metres away from a cooker, and fixed to the wall. When a fire occurs in a kitchen, it is normally on or around the cooker. To use a fire blanket, pull out the blanket from its pouch and hold the blanket between you and the fire. Protect your hands by inserting them into the sleeves of the fire blanket, keeping your fingers away from exposure as you are holding it. Place the fire blanket over the fire and step back immediately. Do not attempt to try and lift up the fire blanket until you are sure that the fire has been put out. Fire blankets should be discarded after use and not re-used. Using a fire blanket For a fire to burn and quickly spread, it requires fuel, heat and oxygen. A fire blanket is used to cut off this supply of oxygen to a fire, and should successfully put it out completely. A fire blanket must be sealed around the fire for it to work effectively, to stop oxygen from getting to the flames. Fire blankets usually have two ‘tails’ that are visible from its packaging. When using a fire blanket, you should place one hand on each tag ‘tail’ and pull simultaneously to remove the blanket from its packaging. If a person’s clothing is on fire, you should use a fire blanket in the same way and make sure that it is correctly sealed around the fire to prevent air escape. Fire blanket installation and servicing If you require fire blankets for a business environment, they should receive an annual service along with your other fire-fighting equipment. Service charges for fire blankets are usually half of that for extinguishers, and having your fire blanket serviced can save lives. An RES engineer will unpack the blanket and carry out a full inspection to ensure that the quality of the blanket still meets the legally required standard before placing it back into its packaging. An engineer will check for signs of wear, stains and any other types of oil staining, and will inform you of any holes in the blanket that may stop the blanket from working properly in the case of a fire. You will receive a certificate containing details of the fire blanket service. Fire blankets from RES At RES, we provide fire blankets that meet the most stringent requirements of BS EN 1869:1997. Our services cover the South of England including London, Berkshire, Bracknell, Windsor, Middlesex & Surrey, Oxfordshire, Hampshire, Buckinghamshire, Hertfordshire, Essex & Kent,

Electrical Fire Extinguisher

At RES Fire Protection Engineers, we offer powder and CO2 extinguishers for electrical-based fires. A powder extinguisher can be used on electrical hazards when combustibility is a danger (including applications on engines and machinery). A CO2 extinguisher is ideal for instances where vast amounts of electrical equipment is on fire, i.e. in an office or server room full of computer components.

Powder extinguisher

Powder extinguishers are very versatile and can be used on class A, B and C fires. They can be used on fires involving electrical equipment, but there is a risk that the fire could reignite, as the extinguisher cannot cool the fire down. Powder extinguishers are only suitable for open spaces and should be used in areas where there is plenty of ventilation, as they can create breathing difficulties and loss of visibility (especially in smoke-shrouded locations). They shouldn’t be used indoors unless there is no other option. Powder fire extinguishers are marked with a blue label.    

CO2 carbon dioxide extinguishers

If you need a fire extinguisher for a large space containing great volumes of electrical equipment (such as a server room with lots of computers, or a production line with lots of electrical machinery), the safest choice is a CO2 carbon dioxide extinguisher. This type of extinguisher can be used without leaving a residue (unlike powder and foam extinguishers). A CO2 extinguisher smothers a fire so that it doesn’t receive extra oxygen that can fuel it and cause it to spread. It reduces the supply of air to the fire, and is ideal for application to electrical equipment that is ablaze. CO2 extinguishers are marked with a black label.

RES Fire Protection Engineers offer both powder and CO2 fire extinguisher solutions for environments containing electrical equipment, including the following:

Fire extinguisher purchase and hire

Do you require powder or CO2 fire extinguishers for rooms holding electrical equipment? We can meet your requirements at RES Fire Protection Engineers. Our entire range of fire extinguishers are produced to adhere to European Standard EN3, and all have a five year guarantee. We offer discounts for large quantity orders. We also offer electrical fire extinguisher hire services for up to six months.

Servicing/refilling electrical fire extinguishers

If your electrical fire extinguisher needs maintenance or routine checks, we can service portable fire extinguishers, hose reels, trolley units and fire blankets to ensure that they are suitable for use in line with current legislation and British Standards. All extinguisher services are conducted by BAFE registered technicians. We also have an emergency call-out service, here for customers 24 hours a day, 7 days a week. Our engineers can also refill your fire extinguishers at either our premises or through our refilling service vans, 5 days a week from 8am-5pm.

Chrome and stainless steel fittings

We offer stainless steel and chrome fittings to indicate action signs, prohibition signs and fire-fighting signs in relation to your fire safety equipment and fire extinguishers. Single or double stands for your extinguishers can also be provided.

Purchase, hire and maintenance of electrical fire extinguishers from RES

Do you require an electrical fire extinguisher for your business so that your staff and premises can be kept safe? We provide a wide range of fire extinguishers for either purchase or hire, and can service and maintain them for you on an ongoing basis. Talk to RES about your business requirements today. We cover the South of England including London, Berkshire, Bracknell, Windsor, Middlesex & Surrey, Oxfordshire, Hampshire, Buckinghamshire, Hertfordshire, Essex & Kent, West & East Sussex, Reading, Maidenhead, Slough, Newbury and the surrounding areas.

If you require fire extinguishers click here Better than wholesale fire extinguishers

Water Fire Extinguishers

What should you use a water fire extinguisher for?

A water fire extinguisher should be used on textile fires, as well as fires caused by burning paper or wood materials. They are also suitable for any other ‘Class A’ graded fires. A water fire extinguisher is ideal for cooling down fires while extinguishing them. In the case of fires caused by burning textiles, the liquid water saturates the fabric to extinguish the flames. Because they do not contain any harsh chemicals, water fire extinguishers are ideal for children’s play areas, food-preparation areas and in areas where there may be vulnerable people. They are also environmentally friendly. Many businesses choose water fire extinguishers because they are easy to refill and cost-effective. That said, a large quantity of water fire extinguishers is needed to cover larger areas, as the water is very quickly used up within a single water fire extinguisher. Sizes available include capacities of 3 litres, 6 litres and 9 litres.

If you intend to use a water fire extinguisher to fight fires caused by electrical equipment, extinguishers with special chemicals inside them are available to prevent current flow and to ensure safe application without electrocution. Water fire extinguishers work well with CO2 extinguishers, and are suitable for home use.   

What does a water fire extinguisher look like?

Water fire extinguishers are red in colour and match the body of the extinguisher. They usually have ‘water extinguisher’ marked on them. At RES Fire Protection Engineers, we always recommend installing signs next to your fire extinguishers to clearly indicate their purpose and nature.

Limitations of water fire extinguishers

Never use water fire extinguishers for the following types of fire:

  • Electrical fires (unless they have special chemicals inside to prevent electrocution)
  • Cooking related fires (such as a chip-pan fire).
  • Fires involving gasses such as methane
  • Fires involving highly flammable substances such as petrol or alcohol

How to use a water fire extinguisher

Water fire extinguishers are very simple and safe to use. Remove the safety pin to break the seal on the extinguisher, before pointing the nozzle at the base of the fire and spraying by squeezing the handle. Ensure that the fire is properly extinguished (keep spraying if you are unsure).

Water fire extinguisher purchase and hire from RES

If you require water fire extinguishers for your business, we can meet your requirements at RES Fire Protection Engineers. Our water fire extinguishers adhere to European Standard EN3, with a five year guarantee. We offer discounts for large quantity orders, and hire services for up to six months if you do not want to purchase an extinguisher. We can also refill and maintain your water fire extinguishers, either filling them at our premises or using our mobile vans.

If you require fire extinguishers click here Better than wholesale fire extinguishers

Talk to RES about your business requirements today. We cover the South of England including London, Berkshire, Bracknell, Windsor, Middlesex & Surrey, Oxfordshire, Hampshire, Buckinghamshire, Hertfordshire, Essex & Kent, West & East Sussex, Reading, Maidenhead, Slough, Newbury and the surrounding areas.

Foam Fire Extinguisher

Aqueous Film Forming Foam (AFFF) fire extinguishers are appropriate when used to fight fire caused by burning substances such as wood. They are also suitable for fires involving the igniting of flammable liquids such as petrol. This is because of the nature of the foam extinguisher, as the foam inside can expand and engulf burning liquids and objects. The foam can also soak into materials that are on fire, such as fabrics. Inside a foam fire extinguisher there is a certain amount of water, which cools the fire down while the foam starves the fire of oxygen, helping to minimise its spreading action.

The main body of an AFFF foam fire extinguisher is typically red. The identification field will be cream coloured for ease of recognition.

Foam fire extinguishers are great for use in the office and home. Care should be taken when cleaning up foam discharge from the extinguisher, or the actual extinguisher’s disposal, as the foam inside is carcinogenic and has the ability to poison. Always recycle a fire extinguisher responsibly. At RES, our fire extinguisher servicing engineers can recycle your extinguisher for you so that it is disposed of in a responsible manner.

RES Fire Protection Engineers offer foam fire extinguisher services, including the following:

Fire extinguisher sales and hire

If you require a new foam fire extinguisher, we can meet your requirements. All of our fire extinguishers are produced to European Standard EN3, with a five year guarantee. We offer discounts for large quantity orders. If you’d rather hire a fire extinguisher, we can provide hire services for up to six months.

Fire extinguisher servicing

We can service portable fire extinguishers, hose reels, trolley units and fire blankets to ensure that they are suitable for use in line with current legislation and British Standards. All work undertaken is carried out by BAFE registered technicians. We also have an emergency call-out service, on hand 24 hours a day, 7 days a week.

Refills for fire extinguishers

Our engineers can refill all makes and types of fire extinguishers at our premises and with our service vans, 5 days a week from 8am-5pm.

Chrome and stainless steel fittings

We offer stainless steel signage for action signs, prohibition signs and fire-fighting signs in relation to your foam fire extinguisher. We can also provide single or double stands for your extinguishers.

Foam fire extinguishers from RES

If you require foam fire extinguisher sales, hire, maintenance or repairs, RES engineers can carry out a comprehensive service to meet your business requirements. We cover the South of England including London, Berkshire, Bracknell, Windsor, Middlesex & Surrey, Oxfordshire, Hampshire, Buckinghamshire, Hertfordshire, Essex & Kent, West & East Sussex, Reading, Maidenhead, Slough, Newbury and the surrounding areas.

We provide practical and cost-effective fire risk assessment services and foam fire extinguishers for our clients to keep their business and staff protected in the event of a fire.

What is a fire hazard?

The term ‘fire hazard’ has two important components – the first is the possible instance of a fire occurring, and the second relates to the consequences and effects of a fire if it happens. It is always important to consider the environment and equipment stored in a place of work to ensure that there are no combustible substances that are present in a manner that could ignite and cause a fire to spread.

What is a fire hazard?

For example, if flammable liquids are in storage in a building, there is a high risk of a ‘fire hazard’ due to the liquids being flammable and potentially exacerbating the spread of a fire in their combustibility. In another example, a workshop may have equipment that could cause a fire, but this fire could potentially be contained if there are no other flammable items or liquids present, ensuring that the fire does not spread to other areas of a building. Many risks can be reduced to low levels with careful storage and good housekeeping. RES provide a comprehensive Fire Risk Assessment service for areas including London, Berkshire, Bracknell, Windsor, Middlesex & Surrey, Oxfordshire, Hampshire, Buckinghamshire, Hertfordshire, Essex & Kent, West & East Sussex, Reading, Maidenhead, Slough, Newbury and the surrounding areas in accordance with the RRFSO.

January 2019 – RES join Fire Protection Association

RES are now members of the The Fire Protection Association (FPA) which is the UK’s national fire safety organisation.

This further demonstrates our commitment  to working towards protecting people, property, business and the environment. Since the FPA’s formation in 1946 they have attained an unrivalled reputation for quality of work and expertise in all aspects of fire including research, consultancy, training, membership, publications, risk surveying and auditing. The FPA’s products and services are designed to assist fire, security and safety professionals achieve and maintain the very highest standards of fire safety management.