Designed & Manufactured LiFePO4 Lithium Batteries You Can Rely On
Lithium Iron Phosphate (LiFePO₄) Batteries Built for Performance, Reliability, and Long Service Life
Ultramax designs and manufactures high-performance Lithium Iron Phosphate (LiFePO₄) batteries for industrial, commercial, mobility, and home energy applications. With engineering and production facilities in the UK and the Far East, we supply dependable power systems trusted across Europe, North America, Asia, and emerging markets. Our focus is simple: deliver safe, long-life, efficient energy storage products that perform consistently in real-world environments.
Why Ultramax Batteries?
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Ultramax LiFePO₄ batteries are engineered to deliver exceptional cycle life, providing long-term value and predictable performance. Whether used in renewable energy systems, industrial equipment, or continuous-use mobility applications, our batteries are built to last.
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LiFePO₄ chemistry provides excellent thermal and chemical stability. Our systems incorporate advanced Battery Management Systems (BMS) to protect against overcharge, over-discharge, short circuit, and temperature extremes — making them suitable for safety-critical environments.
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Across demanding load profiles, Ultramax batteries maintain strong discharge capability, excellent round-trip efficiency, and rapid charging performance. This makes them ideal for applications where uptime, reliability, and consistent voltage levels matter.
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Ultramax batteries power business-critical systems across multiple sectors — from factories and warehouses to marine installations, mobility fleets, and off-grid operations. Our customers choose us for reliability, product availability, and technical support.
Commercial & Industrial Power
Our LiFePO₄ solutions provide dependable storage for warehouses, factories, automation systems, production facilities, and commercial buildings. They support peak-shaving, backup power, load balancing, and integration with renewable generation.
Home Energy Storage
Ultramax batteries are used in solar installations, hybrid systems, and backup setups across residential properties. Homeowners choose LiFePO₄ for long service life, safety, and compatibility with modern inverter platforms.
Renewables & Off-Grid Installations
Ruggedised and resilient, our batteries are installed in remote locations, telecom towers, agricultural sites, and field operations. High cycle life and tolerance to variable environmental conditions make them ideal for off-grid reliability.
Mobility & Transport
Ultramax powers electric mobility devices, AGVs, floor scrubbers, last-mile vehicles, marine trolleys, and industrial equipment. With fast charging and stable discharge, our batteries support daily-use fleets that depend on consistent performance.
Marine & Leisure
We supply lightweight, long-lasting power to caravans, campervans, boats, and outdoor equipment. Ultramax LiFePO₄ batteries are ideal for customers who need safe, silent, low-maintenance energy storage on the move.
Security & Defence
Ultramax batteries are used in surveillance systems, portable field equipment, communications gear, and mission-critical electronics. High stability and strong energy density make them suitable for high-demand, security-sensitive environments.
OEM & White-Label Production
We support OEMs and distributors with white-label and branded manufacturing. Ultramax offers scalable production, bespoke form factors, private-label branding, and tailored engineering support to help partners launch or expand product lines.
Custom Battery Engineering
For specialist applications, our engineering team develops custom battery packs designed to meet exact specifications. We support the full development cycle — from concept and CAD design through prototype, testing, certification, and production.
Global Manufacturing Footprint
With strategic production facilities in both the UK and the Far East, Ultramax delivers a competitive combination of high-quality engineering, consistent production standards, and efficient logistics. This ensures product availability, stable lead times, and the ability to scale with customer demand.
Ultramax is an active participant in Innovate UK-funded research collaborations, working with partners such as Shell, Mivolt, and the University of Bath. These programmes focus on advancing:
- Thermal management
- Cycle-life improvement
- High-efficiency energy storage
- New materials and cooling innovations
- Performance optimisation for next-generation LiFePO₄ products
Our commitment to innovation ensures that every product benefits from engineering advancements, rigorous testing, and continuous improvement.
Quality is a core part of the Ultramax process. Our batteries undergo extensive validation and testing, including:
- Electrical performance testing
- Cycle-life and durability testing
- Environmental and vibration testing
- Safety and protection validation
- Compliance with international quality standards
We operate under strict quality management procedures to ensure consistent manufacturing and reliable performance across every product range.
Ultramax batteries play a key role in helping businesses and homeowners reduce reliance on fossil fuels. With long service life, safe materials, and high energy efficiency, LiFePO₄ storage supports the shift towards renewable power, smart energy management, and more sustainable operations. Our products are designed to deliver performance today while contributing to a lower-carbon future.
Talk to Our Team
Whether you need a customised solution, OEM supply, commercial deployment, or home energy storage, our technical team can recommend the right LiFePO₄ battery for your application. We work closely with customers to ensure the product chosen is safe, efficient, and suited to the operating environment.