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At UPSBuyer, we know that when it comes to standby power, reliability is not optional. That is why we recommend the Yuasa SWL+ range, the evolution of Yuasa’s market-leading SWL series trusted in critical applications across the UK and beyond.
Built for very long service life, the SWL+ delivers extended runtime, improved high-rate performance, and the reassurance that your UPS will be ready the moment it is needed. Thanks to Yuasa’s advanced HT Element X Alloy™ and hybrid pure lead technology, these batteries resist corrosion, minimise water loss, and maintain consistent output over years of service.
Whether you are upgrading an existing installation or specifying new backup systems, the SWL+ range is fully compatible with the original SWL series, meaning hassle-free replacement and seamless integration. With every unit manufactured to the highest quality standards and up to 98% recyclable, you are choosing not only performance but also sustainability.
Why choose the SWL+ from UPSBuyer?
Extended design life (up to 12+ years EUROBAT classification)
Exceptional high-rate discharge capability, ideal for UPS and critical standby use
Trusted by hospitals, data centres, financial institutions and infrastructure projects
Direct supply from UPSBuyer with the expert support you expect
If you are looking for a battery range that combines proven reliability with improved performance, the Yuasa SWL+ is the smart investment. At UPSBuyer, we make it simple to specify, source, and support the right standby power solution for your business.
| SKU | SWL+1850-6FR |
|---|---|
| Name | Yuasa SWL+1850-6FR (6V 148Ah) Very Long Life Hybrid VRLA Battery |
| Nominal Voltage | 6V |
| Capacity (20hr rate to 10.5V at 20°C) | 148Ah |
| Capacity (10hr rate to 10.8V at 20°C) | 132Ah |
| Watts per Cell (10 min to 1.6VPC at 20°C) | 350W |
| Length | 350mm |
| Width | 166mm |
| Height | 174mm |
| Weight (typical) | 23.8kg |
| Impedance at 1kHz | 1.8 mΩ |
| Short Circuit Current | 500A |
| Terminal Torque | 4.8Nm |
| Case | UL94:V0 Flame Retardant |
| Design Life | 15 years at 20°C, 12 years at 25°C (EUROBAT classified as "Very Long Life") |
Estimated delivery cost for Yuasa SWL+1850-6FR (6V 148Ah) Very Long Life Hybrid VRLA Battery is £59.95.
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