We’ve powered Europe’s skylines for decades. Now the best just got better
For over 40 years, Yuasa batteries have delivered dependable standby power to Europe’s most critical infrastructure — from data centres and hospitals to high-rise buildings, airports, and global financial hubs. As the trusted name behind the original SWL series, we’ve set the standard for VRLA battery performance. Now, with SWL+, we’ve taken that benchmark even further. Combining our latest advances in Hybrid Pure Lead technology and HT Element X Alloy™, the SWL+ series delivers more power, longer life, and total peace of mind when it matters most.
15 year design life (12 years at 25°C) with enhanced high-rate performance
Exclusive HT Element X Alloy™
Hybrid pure lead
construction
Sustainably manufactured & up to 98% recyclable
Key advancements of the SWL+ series:
Extended design life and EUROBAT classification
15 year design life at 20°C, EUROBAT classified as 12+ years “Very Long Life” providing a strong return on investment and complete peace of mind. 12 years design life at 25°C.
Enhanced high-rate performance
Optimised high-rate capacity ratings to meet the most demanding applications.
Hybrid Pure Lead technology
Constructed using a specialised hybrid combination of primary pure Lead and advanced recycled alloy to optimise performance and provide market-leading service life.
HT Element X Alloy™ technology
Exclusive to GS Yuasa, HT Element X Alloy™ technology provides longer life by reducing positive grid corrosion and reducing water loss.
Delivers CAPEX savings and cuts energy costs through longer life, fewer replacements and allowing 25°C room temps while maintaining a 12-year life.
Sustainable design and manufacture
Integrates recycled materials and cutting-edge processes in our UK factory for minimal environmental impact without compromising performance—backed by 98% recyclability for a truly circular lifecycle.
100% quality inspection and guaranteed capacity
Rigorous quality control at each manufacturing stage to ensure every SWL+ battery is fully tested and ready to perform from the moment it leaves our factory.
Certified safety, performance and durability
Produced and tested in ISO and UKAS certified facilities to comply with the highest industry standards.
Field-proven back-up power
Trusted by iconic buildings, businesses, brands and operations across Europe, the SWL+ series continues our long-standing legacy of dependable standby solutions.
Fully compatible with existing SWL installations
Can be installed as a direct replacement for UK manufactured SWL batteries where required for seamless integration with existing battery systems.
Ready to future-proof your backup power?
The SWL+ series
Developed through decades of proven success and precision engineering, the SWL+ series is designed to handle the most demanding standby power applications. Whether in a hospital, data centre, or high-rise infrastructure, it delivers dependable performance when downtime simply isn’t an option.
Need help choosing the right model or want to discuss your specific standby power requirements? Our experienced team is here to guide you. Reach out today for tailored support and expert advice.
