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THE WORLD'S MOST POWERFUL TOWABLE BATTERY FOR HIRE

We’re delighted to be the first in the UK to offer a 300kW towable battery for hire. The incredible Orb300 was built to our own specifications and we believe this powerful BESS (Battery Energy Storage System) is going to transform the way our clients manage their temporary power needs.

The Orb300 is set to turn the tide on our reliance on diesel generators, especially once we’ve introduced EV charging capabilities later in 2026, enabling super quick recharging times using any public or private EV charging station.

Silent, emission-free and reliable power, even in remote or off-grid locations

The Orb300 is a game changer and available for rental in UK.

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The Orb300 towable battery unit.

POWERFUL PORTABLE 2nd life BATTERIES

The Orb10 is specifically designed for film and event crews looking to hire reliable, silent power.

The most eco-friendly battery of its class, every Orb10 is made from 2nd life Tesla EV batteries and delivered fully charged using 100% sustainable electricity.

Made in the UK and available to hire exclusively through OnBio.

10kWh of SILENT POWER

TOUGH, PORTABLE & EMISSIONS FREE

With inbuilt cooling and frost protection the Orb10 is engineered to deliver seamless power in any weather.

Its tough robust design guarantees reliability every time.

Committed to reducing waste and carbon emissions by using second life batteries.

Available for hire across London and the South East. Based in High Wycombe, Buckinghamshire — ideal for events and productions across the region.

A close-up of the Orb300 battery unit's control panel.

perfect applications for mobile BESS UNITS:

Industries We Serve

Film & TV production

Outdoor events & festivals

Corporate events & exhibitions

Construction & infrastructure

Location catering & food trucks

Location Department:

Powering tech trucks when noise is an issue
Last minute changes that need instant silent power
Power in large open spaces where generators are too noisy
Emission free power for confined spaces
Power for early call or wrap work lights
No noise and air pollution which goes down well with the public

Video Village:

Silent power for monitors, DIT and sound all day
No unnecessary cable runs
Can be easily moved with video village

Camera:

Overnight battery charging
Early call power when in residential areas
Perfect for powering camera cranes

Catering:

Early morning catering setups
Running on-set lunch serveries silently

Electrical Departments:

Perfect for night shoots
Lighting positions with no cable runs

Construction:

Power tool charging & LED work lights

On Location:

Perfect for marine applications
Filming on trains
Can be loaned onto boats
Working inside tunnels

Event Hire:

Perfect for PA or sound systems

CLIENT TESTIMONIALS

The Orb300 towable battery unit on a film set.

Our batteries

The Orb300 towable battery unit.

300
kWh
Road
TOW
battery

Made
from
2nd
life
EV
batteries

The World’s Most Powerful Towable Battery

Made using 2nd life EV batteries, the Orb300 has a staggering 300kWh of storage. Its powerful three phase 88kW or 140kW inverter means it can handle demanding loads and enables super fast charging times.

Fitted with two charging options, a 125amp three phase supply which means you’ll be fully charged and ready to go again in just 4hrs or a 63amp three phase option which offers a 7hr charging time.

From 2025 for the first time ever you will be able to recharge the battery using any EV car charging station. With super fast 6 hour charging times on a 50kW DC car charger, we’re hoping our clients will find it easier to recharge using a local EV charging station than using a generator.

With its four 22kW inverters the Orb300 is capable of delivering 88kW three phase or 29kW single phase power. An assortment of power sockets are designed to provide for every situation, with 125amp, 63amp & 32amp three phase to 32amp & 16amp single phase sockets available for easy plug and go. If more power sockets are required, we have distro boxes of all sizes available to hire.

Towable using any pickup rated to tow 3.5T, the Orb300 punches above its weight.

The Orb300 towable battery unit.

10
kWh
portable
battery

Made
from
2nd
life
EV
batteries

The ultimate 10kWh portable battery!

The Orb10 is made using 2nd life Tesla EV batteries making it the most powerful and environmentally friendly battery of its class.

Designed specifically for the high demands of film and TV locations, the Orb10 is completely weatherproof, easy to manoeuvre over any terrain whether it’s high curbs, gravel drives or soft grass, you’ll be able to get silent power to wherever you need it.

The Orb10 can be charged and discharged at the same time or daisy chained for an uninterrupted high kw supply.

With its 10kw inverter the battery can be recharged to 90% in just 1.5 hours.

Fitted with 1 x 32-amp, 2 x 16-amp & 1 x 13-amp outlets, the Orb10 has all the sockets you need.

Wattman 

10
kWh
portable
battery

For those times when you need to lift the battery on and off a vehicle or if your short of space, we have the 10kWh Wattman.

The 10 kWh Wattman has a 6kw inverter and delivers silent, off-grid electricity in a lightweight 85kg unit. If you need a lighter alternative to our 10kWh Orb the Wattman is a great alternative. Whilst it needs a rain jacket when being used in damp or wet conditions and can’t be charged / discharged at the same time, it is easy for two people to lift on and off a vehicle and maneuver in confined spaces.

With its 6kw inverter the battery can be recharged to 90% in 4 hours.

The Wattman has both 32-amp and 16-amp sockets, and output voltage of 230VAC / 50Hz.

Instagrid ONE max 

We also have plenty of the popular off-grid power solution Instagrid ONE max to hire.

The 2.1 kWh Instagrid ONE max delivers silent, off-grid electricity in a handy and portable 20kg unit. If you need a smaller alternative to our 10kWh Orb the Instagrid ONE max is a popular and reliable portable power alternative.

With its 3.6 kW micro inverters it can power your equipment silently and can be recharged in only 2.5 hours.

The Instagrid ONE Max has both 13-amp and 16-amp sockets, and output voltage of 230VAC / 50Hz.

2.1 kWh portable battery power pack

Frequently asked questions

What is the Orb300 and how much power does it deliver?

The Orb300 is a road-towable Battery Energy Storage System (BESS) with 300kWh of storage, built to OnBio's own specifications. It runs an 88kW or 140kW three-phase inverter that handles demanding loads while delivering silent, emission-free power, including in remote and off-grid locations. It is the first 300kW towable battery available for hire in the UK.

How quickly can the Orb300 be recharged?

The Orb300 has two charging options: a 125A three-phase supply recharges it fully in around 4 hours, or a 63A three-phase supply in around 7 hours. It can now also recharge from any public or private fast EV charging station.

Can the batteries be linked together or daisy-chained?

Yes. Orb300 & Orb10 batteries can be linked together to increase both runtime and overall kWh capacity.

Can I monitor usage remotely?

On the Orb300, remote monitoring is available, giving you live access to usage data and performance. Our Orb10 can only be accessed remotely if it’s connected to a local Wi-Fi, however it does save all the data so we can download and share once it’s off hired.

What is the Orb10 and what is it used for?

The Orb10 is a portable 10kWh battery designed for film and event crews who need silent, reliable power for video village, camera charging, catering setups, work lights and more. It is made in the UK from second-life Tesla EV batteries and delivered fully charged using 100% sustainable electricity, with built-in cooling and frost protection so it performs in any weather.

How long will the batteries last on set?

Runtime depends on your load. As a real example, one production ran a second-unit video village from a single Orb10 across a three-day shoot and still had over 60% charge left at the end of each day. At the other end of the scale, the Orb300 — built for three-phase demands — has powered over 10 tech trucks for two days on a single charge. Whatever your setup, we can help size the right battery for your requirements.

Are the Orb batteries really silent and emission-free?

Yes. Unlike diesel generators, the Orbs run silently and produce no on-site emissions. That makes them ideal for residential locations, night shoots, confined spaces, video village, and anywhere noise or fumes would be a problem for crew or the public.

Where does OnBio hire the batteries, and how do I book?

OnBio is based in High Wycombe, Buckinghamshire, and hires the Orb batteries across the South East and nationwide — well placed for productions and events wherever they are. To check availability or arrange hire, call 01494 326922.

OnBio Limited
Handy Cross Farm
Wycombe Road
High Wycombe
England
HP10 9QD

(+44) 01494 326922

Company No. 9226874

ALBERT Official Supplier
Renewable Fuels Assurance Scheme

OnBio is an approved renewable fuel supplier under the Renewable Fuel Assurance Scheme: reference number OB/P24/23.

Video is not available or format is not supported. Try a different browser.

THE WORLD'S MOST POWERFUL TOWABLE BATTERY FOR HIRE

We’re delighted to be the first in the UK to offer a 300kW towable battery for hire. The incredible Orb300 was built to our own specifications and we believe this powerful BESS (Battery Energy Storage System) is going to transform the way our clients manage their temporary power needs.

The Orb300 is set to turn the tide on our reliance on diesel generators, especially once we’ve introduced EV charging capabilities later in 2026, enabling super quick recharging times using any public or private EV charging station.

Silent, emission-free and reliable power, even in remote or off-grid locations

The Orb300 is a game changer and available for rental in UK.

Video is not available or format is not supported. Try a different browser.

The Orb300 towable battery unit.

POWERFUL PORTABLE 2nd life BATTERIES

The Orb10 is specifically designed for film and event crews looking to hire reliable, silent power.

The most eco-friendly battery of its class, every Orb10 is made from 2nd life Tesla EV batteries and delivered fully charged using 100% sustainable electricity.

Made in the UK and available to hire exclusively through OnBio.

10kWh of SILENT POWER

TOUGH, PORTABLE & EMISSIONS FREE

With inbuilt cooling and frost protection the Orb10 is engineered to deliver seamless power in any weather.

Its tough robust design guarantees reliability every time.

Committed to reducing waste and carbon emissions by using second life batteries.

Available for hire across London and the South East. Based in High Wycombe, Buckinghamshire — ideal for events and productions across the region.

A close-up of the Orb300 battery unit's control panel.

perfect applications for mobile BESS UNITS:

Industries We Serve

Film & TV production

Outdoor events & festivals

Corporate events & exhibitions

Construction & infrastructure

Location catering & food trucks

Location Department:

Powering tech trucks when noise is an issue
Last minute changes that need instant silent power
Power in large open spaces where generators are too noisy
Emission free power for confined spaces
Power for early call or wrap work lights
No noise and air pollution which goes down well with the public

Video Village:

Silent power for monitors, DIT and sound all day
No unnecessary cable runs
Can be easily moved with video village

Camera:

Overnight battery charging
Early call power when in residential areas
Perfect for powering camera cranes

Catering:

Early morning catering setups
Running on-set lunch serveries silently

Electrical Departments:

Perfect for night shoots
Lighting positions with no cable runs

Construction:

Power tool charging & LED work lights

On Location:

Perfect for marine applications
Filming on trains
Can be loaned onto boats
Working inside tunnels

Event Hire:

Perfect for PA or sound systems

CLIENT TESTIMONIALS

The Orb300 towable battery unit on a film set.

Our batteries

The Orb300 towable battery unit.

300 kWh Road TOW battery

Made from 2nd life EV batteries

The World’s Most Powerful Towable Battery

Made using 2nd life EV batteries, the Orb300 has a staggering 300kWh of storage. Its powerful three phase 88kW or 140kW inverter means it can handle demanding loads and enables super fast charging times.

Fitted with two charging options, a 125amp three phase supply which means you’ll be fully charged and ready to go again in just 4hrs or a 63amp three phase option which offers a 7hr charging time.

From 2025 for the first time ever you will be able to recharge the battery using any EV car charging station. With super fast 6 hour charging times on a 50kW DC car charger, we’re hoping our clients will find it easier to recharge using a local EV charging station than using a generator.

With its four 22kW inverters the Orb300 is capable of delivering 88kW three phase or 29kW single phase power. An assortment of power sockets are designed to provide for every situation, with 125amp, 63amp & 32amp three phase to 32amp & 16amp single phase sockets available for easy plug and go. If more power sockets are required, we have distro boxes of all sizes available to hire.

Towable using any pickup rated to tow 3.5T, the Orb300 punches above its weight.

The Orb300 towable battery unit.

10 kWh portable battery

Made from 2nd life EV batteries

The ultimate 10kWh portable battery!

The Orb10 is made using 2nd life Tesla EV batteries making it the most powerful and environmentally friendly battery of its class.

Designed specifically for the high demands of film and TV locations, the Orb10 is completely weatherproof, easy to manoeuvre over any terrain whether it’s high curbs, gravel drives or soft grass, you’ll be able to get silent power to wherever you need it.

The Orb10 can be charged and discharged at the same time or daisy chained for an uninterrupted high kw supply.

With its 10kw inverter the battery can be recharged to 90% in just 1.5 hours.

Fitted with 1 x 32-amp, 2 x 16-amp & 1 x 13-amp outlets, the Orb10 has all the sockets you need.

Wattman 

10 kWh portable battery

For those times when you need to lift the battery on and off a vehicle or if your short of space, we have the 10kWh Wattman.

The 10 kWh Wattman has a 6kw inverter and delivers silent, off-grid electricity in a lightweight 85kg unit. If you need a lighter alternative to our 10kWh Orb the Wattman is a great alternative. Whilst it needs a rain jacket when being used in damp or wet conditions and can’t be charged / discharged at the same time, it is easy for two people to lift on and off a vehicle and maneuver in confined spaces.

With its 6kw inverter the battery can be recharged to 90% in 4 hours.

The Wattman has both 32-amp and 16-amp sockets, and output voltage of 230VAC / 50Hz.

Instagrid ONE max 

We also have plenty of the popular off-grid power solution Instagrid ONE max to hire.

The 2.1 kWh Instagrid ONE max delivers silent, off-grid electricity in a handy and portable 20kg unit. If you need a smaller alternative to our 10kWh Orb the Instagrid ONE max is a popular and reliable portable power alternative.

With its 3.6 kW micro inverters it can power your equipment silently and can be recharged in only 2.5 hours.

The Instagrid ONE Max has both 13-amp and 16-amp sockets, and output voltage of 230VAC / 50Hz.

2.1 kWh portable battery power pack

Frequently asked questions

What is the Orb300 and how much power does it deliver?

The Orb300 is a road-towable Battery Energy Storage System (BESS) with 300kWh of storage, built to OnBio's own specifications. It runs an 88kW or 140kW three-phase inverter that handles demanding loads while delivering silent, emission-free power, including in remote and off-grid locations. It is the first 300kW towable battery available for hire in the UK.

How quickly can the Orb300 be recharged?

The Orb300 has two charging options: a 125A three-phase supply recharges it fully in around 4 hours, or a 63A three-phase supply in around 7 hours. It can now also recharge from any public or private fast EV charging station.

Can the batteries be linked together or daisy-chained?

Yes. Orb300 & Orb10 batteries can be linked together to increase both runtime and overall kWh capacity.

Can I monitor usage remotely?

On the Orb300, remote monitoring is available, giving you live access to usage data and performance. Our Orb10 can only be accessed remotely if it’s connected to a local Wi-Fi, however it does save all the data so we can download and share once it’s off hired.

What is the Orb10 and what is it used for?

The Orb10 is a portable 10kWh battery designed for film and event crews who need silent, reliable power for video village, camera charging, catering setups, work lights and more. It is made in the UK from second-life Tesla EV batteries and delivered fully charged using 100% sustainable electricity, with built-in cooling and frost protection so it performs in any weather.

How long will the batteries last on set?

Runtime depends on your load. As a real example, one production ran a second-unit video village from a single Orb10 across a three-day shoot and still had over 60% charge left at the end of each day. At the other end of the scale, the Orb300 — built for three-phase demands — has powered over 10 tech trucks for two days on a single charge. Whatever your setup, we can help size the right battery for your requirements.

Are the Orb batteries really silent and emission-free?

Yes. Unlike diesel generators, the Orbs run silently and produce no on-site emissions. That makes them ideal for residential locations, night shoots, confined spaces, video village, and anywhere noise or fumes would be a problem for crew or the public.

Where does OnBio hire the batteries, and how do I book?

OnBio is based in High Wycombe, Buckinghamshire, and hires the Orb batteries across the South East and nationwide — well placed for productions and events wherever they are. To check availability or arrange hire, call 01494 326922.

OnBio Limited
Handy Cross Farm
Wycombe Road
High Wycombe
England
HP10 9QD

(+44) 01494 326922

Company No. 9226874

ALBERT Official Supplier
Renewable Fuels Assurance Scheme

OnBio is an approved renewable fuel supplier under the Renewable Fuel Assurance Scheme: reference number OB/P24/23.

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