
The FLEX is a power inverter that works with your Efuze battery-powered electrofusion welder, to convert the Efuze welding output voltage into 110V ac to run your on-site tools.
The stored energy is taken from the Efuze battery pack which allows the FLEX to be very small and lightweight, coming in at just 6.4kg.
The FLEX has a surge power of 3,000W and a continuous power of 1,500W. It has a 110V pure sine wave output.
A fully charged Efuze battery will run a submersible pump for 45 minutes, pumping out 9,000 litres of water which is 112 bathtubs full.
A fully charged Efuze battery will run a 10 bar 10 litre air compressor for 30 minutes, giving 2,600 litres of air. This will pump up 42 car tyres from empty.
Using the FLEX removes the need to carry a petrol/diesel generator in the van, saving weight and space while also removing the H&S risks of using fuel.
Using the FLEX to pump water out of a trench for 5 minutes, 1,000 litres, takes the same energy from the Efuze battery as welding one 125mm coupler.
Standards





The FLEX is a power inverter that works with your Efuze battery-powered electrofusion welder, to convert the Efuze welding output voltage into 110V ac to run your on-site tools.
The stored energy is taken from the Efuze battery pack which allows the FLEX to be very small and lightweight, coming in at just 6.4kg.
The FLEX has a surge power of 3,000W and a continuous power of 1,500W. It has a 110V pure sine wave output.
A fully charged Efuze battery will run a submersible pump for 45 minutes, pumping out 9,000 litres of water which is 112 bathtubs full.
A fully charged Efuze battery will run a 10 bar 10 litre air compressor for 30 minutes, giving 2,600 litres of air. This will pump up 42 car tyres from empty.
Using the FLEX removes the need to carry a petrol/diesel generator in the van, saving weight and space while also removing the H&S risks of using fuel.
Using the FLEX to pump water out of a trench for 5 minutes, 1,000 litres, takes the same energy from the Efuze battery as welding one 125mm coupler.
Standards



Sine Wave | Surge Power | Weight | Overall Dimensions | IP Rating | Warranty |
---|---|---|---|---|---|
Pure Sine Wave | 3000W | 6kg | 43 x 21 x 34cm | IP54 | 12 Months |
Lightweight Inverter Built for the Most Brutal Environments
Lightweight Inverter Built for the Most Brutal Environments
Flex Your Power, with a Quarter the Weight,
Four Times the Flexibility
Why not take the next step with your Efuze by purchasing the FLEX Inverter under the Eco Package. Capable of utilising your Efuze for powering any of your site maintenance or power tools.

Flex Your Power, with a Quarter the Weight,
Four Times the Flexibility
Why not take the next step with your Efuze by purchasing the FLEX Inverter under the Eco Package. Capable of utilising your Efuze for powering any of your site maintenance or power tools.


The first Lithium Ion
Battery Powered
Electrofusion Welder
The I-ACT is the worlds first lithium battery powered electrofusion welder that offers customers pure, grid like power anywhere.
Thanks to Advance Welding’s innovation the EFuze is the first product capable of delivering powerful, safe and clean energy onsite. Allowing your businesses to achieve the new AMP8 / GD3 requirements for Net Zero / Carbon Neutrality.
This robust design offers safe and reliable onsite power for Electrofusion or can double as an onsite power source*, with no noise, no fuel and no emissions.
Its internal battery eliminates the need for a generator and fuel.
Reducing you transit weight by on average 86%, making it easier to access site works.
The fusion welder can be recharged and silently weld over 200 couplers** completely CO2 free.
Why is a Battery Powered
Electrofusion Welder The Future
AMP8 / GD3 Requirements*
AMP8 and GD3 are new regulatory obligations coming into play for companies to achieve Net Zero and Carbon Neutral Assets.
Currently EFuze is the only Electrofusion market solution available to achieve the regulation requirements before it’s compulsory.
What can you save.
86% Lighter
No more generators, reduces the overall electrofusion fleet weight.
96% Carbon Reduction
Less weight, no fossil fuels reduce your carbon footprint.
9p to Fully Charge
Charging your EFuze will only cost you 9p equating to 200x welds.
Testimonials
The current electrofusion boxes we use are heavy and need to be powered from the van onboard power. This is a problem when working on developer building sites where often it isn’t possible to park close to the work area and multiple extension leads are required. This causes an increased risk of slips, trips and falls. There is also increased risk of manual handling injuries due to the size and weight of the older boxes.
The Efuze is a lightweight battery-powered rechargeable electrofusion unit, which means there is Zero carbon emissions during operation. This also means less usage of fuel to power generators or vans, and no excess CO2 being emitted whilst fusing. Another benefit is there will be no fumes entering the area where the team are working.
From a noise pollution aspect, this box runs completely silently, meaning our teams can hear each other communicating on site, along with less disruption to the general public making out of hours working easier.
Analysis of field-trial data showed that because the operators didn’t have to use a generator or extension leads, they didn’t lose time carrying them and setting up from job to job, allowing them to focus on the actual welding, making them more productive.
Our teams love the Efuze box and I have not heard a bad word from anyone about it.

Electrofusion Welding
EFuze is the first and only lithium-ion powered electrofusion welder, eliminating the need for generators and fuel. Its robust, lightweight design withstands tough job sites while also serving as a power source for site tools—meeting all your service installation needs in one compact unit.

Site Maintenance
EFuze empowers independent businesses with cost-effective site maintenance, enabling solo electrofusion welding for irrigation with geo-tagging for future reference. It also serves as a power source for tools like drills and pumps. For added security, EFuze can be equipped with Alockate, a remote lock and tracking system.
Specification
Comes With
The Flex is equipped with everything you need to power your tool onsite, when purchasing a standard unit you will be provided with:
Flex Inverter
Premium Carry Case