July 10th, 2025.



GS Yuasa, the world’s leading battery manufacturer for over a century, announces the official launch of its new Yuasa SWL+ series. Building on the success and proven dependability of the renowned SWL range, the SWL+ series sets a new benchmark in VRLA (Valve Regulated Lead Acid) battery technology for high-rate discharge and standby power applications.

Aimed at the most demanding UPS (Uninterruptible Power Supply) and energy storage environments, the SWL+ series addresses growing market needs for longer-lasting, higher-performance energy solutions. From large-scale data centres and manufacturing facilities to towering city skyscrapers and landmark infrastructure, the new SWL+ provides the enhanced reliability these mission-critical operations demand.

For over 40 years Yuasa batteries have led the way in Europe’s standby power market—powering everything from financial institutions and data centres to iconic skylines and global sporting venues. By combining premium Japanese engineering with leading-edge UK manufacturing, GS Yuasa has built a reputation for unwavering quality and innovation. The SWL+ series continues this legacy, delivering next-level performance while maintaining the trusted dependability customers have come to expect from Yuasa.

At the heart of the SWL+ series is Hybrid Pure Lead technology—an advanced combination of primary pure lead and specialised recycled alloy. By incorporating a sustainable element alongside pure lead, this pioneering approach achieves increased corrosion resistance and extended battery life. The carefully balanced alloy composition further enables higher energy density, vital for high-rate discharge scenarios where every second counts. This unique blend sets the SWL+ range apart from competitors, delivering improved longevity and dependable power.

In tandem with this, the SWL+ series incorporates GS Yuasa’s exclusive HT Element X Alloy™, which dramatically reduces positive grid corrosion and water loss in high-temperature conditions. Combined, these innovations offer robust performance, improved longevity, and dependable power in even the most challenging operational environments. Additionally, it enables energy cost savings—for example, maintaining an ambient temperature of 25°C in battery rooms still ensures a 12-year design life, reducing the need for more intensive (and expensive) cooling.

Their extended 15-year design life not only reduces replacement frequency but also delivers significant CAPEX advantages by lowering long-term investment costs.

“We’ve powered Europe’s skylines and critical infrastructure for decades,” said Andrew Taylor, CEO and Managing Director, GS Yuasa Battery Europe Ltd. “Now, the best just got better. The SWL+ series offers extended service life, improved high-rate discharge performance, and advanced technologies—all while maintaining seamless drop-in compatibility with existing SWL systems. It is a direct reflection of our commitment to continuous innovation and our customers’ evolving power needs.”

Key Advancements of the SWL+ Series

- 15-year design life at 20°C & 12 years at 25°C
- EUROBAT-classified as ‘Very Long Life,’ providing an excellent return on investment and reduced total cost of ownership.
- Enhanced high-rate performance
- Superior performance to handle the most demanding backup power requirements.
- Exclusive HT Element X Alloy™
- Debuting for the first time in this series, GS Yuasa’s proprietary HT Element X Alloy™ technology uses an advanced grid design and ultra-pure lead to resist corrosion and reduce water loss in high temperatures, extending lifespan and ensuring consistent performance.
- Delivers CAPEX savings & cuts energy costs through longer life, fewer replacements and improved operating temperature range.
- Hybrid pure lead construction
- Specialised alloy blend to maximise battery life and reliability under heavy load.
- Sustainably manufactured
- Produced in the UK, boasting up to 98% recyclability for a smaller environmental footprint.
- Seamless drop-in replacement
- Backwards-compatible with the legacy UK-manufactured SWL range, allowing for easy upgrade without complex retrofitting.

Expanded range
The new SWL+ family features 27 references, including a new front terminal option, the SWL+2900-12FT. Each is meticulously designed to provide superior standby power across a wide range of applications. For added safety and compliance, flame-retardant (FR) models are also available, meeting the UL94:V0 safety standard. With capacities from 22.9 C10 Ah to 130 C10 Ah and power ratings from 800W to 4300W, the SWL+ series ensures a right-sized solution for everything from smaller network cabinets to expansive data centre installations.

“These innovations address the growing challenge of delivering uninterrupted power in an era when UPS systems for critical infrastructure must operate at peak reliability,” added Andrew Taylor. “The SWL+ series not only extends operational life in these environments but also offers greater resilience to heat and heavy discharge cycles—ideal for modern energy storage systems supporting renewable energy integration.”

To discover more, visit www.yuasa.com/SWL+

Yuasa motorcycle and powersport batteries are distributed in the UK by Bicker Powersports - www.bickers-online.co.uk