About UltraMax – UK LiFePO₄ Battery Manufacturer
UltraMax is a UK-based manufacturer of high-performance Lithium Iron Phosphate (LiFePO₄) batteries, supplying reliable energy storage solutions for industrial, commercial, mobility, marine, and renewable energy applications. With engineering expertise, ISO-certified processes, and a global manufacturing footprint, we design and produce battery systems built for long service life, safety, and consistent real-world performance.
Our focus is simple: deliver dependable lithium battery solutions that meet the technical, operational, and commercial requirements of our customers.
Our Story & UK Engineering Heritage
UltraMax combines UK engineering expertise with scalable international manufacturing to deliver high-quality lithium battery solutions at competitive lead times. Our operations span the UK and the Far East, allowing us to balance technical oversight, rigorous quality control, and efficient production.
We work closely with OEMs, distributors, and commercial customers across Europe and international markets, supporting applications where reliability, safety, and performance are critical.
What We Manufacture
UltraMax designs and manufactures a wide range of LiFePO₄ battery solutions engineered for demanding applications.
LiFePO₄ Battery Products
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Mobility and accessibility batteries
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Golf trolley and leisure batteries
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Marine and onboard power systems
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Renewable energy and off-grid storage
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Industrial and commercial power solutions
Our LiFePO₄ batteries are chosen for their long cycle life, stable chemistry, high efficiency, and suitability for continuous-use environments.
Chargers & Power Accessories
In addition to battery packs, UltraMax supplies compatible chargers, charge controllers, and supporting power accessories designed to optimise battery performance and lifespan.
Custom & OEM Battery Solutions
UltraMax supports OEMs and commercial partners with bespoke battery engineering and white-label manufacturing. Our team works collaboratively to develop battery systems tailored to specific electrical, mechanical, and environmental requirements.
We support the full product lifecycle, including:
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Application analysis and specification review
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Cell selection and pack architecture design
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CAD modelling and prototyping
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Performance testing and validation
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Certification support and scalable production
This flexible approach enables partners to bring reliable, market-ready battery solutions to customers with confidence.
Our Manufacturing Process
Every UltraMax battery is developed using a structured, quality-led process to ensure consistent performance and long-term reliability:
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Technical requirements and application assessment
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Cell evaluation and electrical configuration
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Mechanical design and prototype development
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Performance, safety, and durability testing
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Controlled production and final quality inspection
UltraMax operates under ISO 9001:2015 quality management standards, ensuring traceability, consistency, and compliance across all manufacturing stages.
Why Choose UltraMax
Customers choose UltraMax for more than just battery supply. We are a long-term technical partner committed to product performance and customer success.
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UK engineering oversight with global manufacturing capability
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Proven LiFePO₄ technology with long cycle life
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Custom and OEM manufacturing expertise
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Rigorous quality control and testing processes
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Responsive technical support and reliable supply
Our batteries are trusted in applications where downtime is not an option.
Talk to Our Team
Whether you require a standard LiFePO₄ battery, a custom-engineered solution, or OEM manufacturing support, our team is ready to help. We work closely with customers to ensure every battery system is safe, efficient, and fit for purpose.