Yuasa UXL: Ultra-Extended Life Batteries for Critical Power Applications

 In applications where reliability, longevity, and safety are non negotiable, the Yuasa UXL Range delivers a standout performance. Designed as Valve Regulated Lead Acid (VRLA) batteries with ultra-extended life capability, this line is ideal for mission-critical installations such as telecommunications backhaul, utility power stations, rail networks, and industrial backup systems.

Below is an in-depth look into the features, advantages, specifications, and use cases of the Yuasa UXL battery range, carefully framed with just two mentions of the provider name, to maintain emphasis on the technology itself.

Engineering Excellence: Design and Performance

The Yuasa UXL series is engineered for long service life, with a 15-year design life under float standby conditions at 25 °C. This minimizes the frequency of replacement cycles and helps reduce total cost of ownership in the long run. Maintenance demands are minimal: the batteries are sealed, maintenance-free, and do not require equalising charges, thanks to their gas recombination system.

One of the key design innovations is the electrolyte suspension system. Instead of free liquid acid, the electrolyte is embedded in separators, preventing leakage even when the battery is mounted in non-standard orientations. This allows vertical or horizontal installation, enhancing flexibility in constrained spaces. The sealed construction also features a low pressure venting mechanism that safely releases excess gas and reseals itself under normal conditions.

Safety is a priority: the battery casings use flame retardant materials, and the design ensures that no electrolyte escapes under normal operation. The internal separators are made from microfibre glass mat material that provides insulation between plates and reduces shedding of active material, which helps preserve internal integrity over decades.

Technical Specifications & Options

The UXL range covers multiple capacities to meet different load levels:

Model	Nominal Voltage	Nominal Capacity (C10)	Dimensions (W × D × H / Overall Height)	Weight
UXL220-2	2 V	200 Ah	106 × 170 × 330 mm (362 mm overall)	~16 kg
UXL330-2	2 V	300 Ah	150 × 170 × 330 mm (362 mm overall)	~24 kg
UXL550-2	2 V	500 Ah	171 × 241 × 330 mm (362 mm overall)	~38 kg
UXL1100-2	2 V	1000 Ah	171 × 471 × 330 mm (362 mm overall)	~76 kg

These modules can be connected in series and parallel combinations to build up higher voltage banks and capacity according to system needs.

Key operational features include:

• Sealed, non-spillable design

• No electrolyte leakage even in non–vertical mounting (except inverted position)

• Valve regulated gas recombination

• Low maintenance under float use

• Compliance with standards: meets relevant Australian and New Zealand standards such as AS4029, AS2676, and AS4044

• Recyclability: the materials used are designed to allow recycling at end of life

Because of their internal gas recombination and sealed build, there’s no need to add water or maintain free acid levels, reducing labor and risk over extended deployments.

Advantages & Differentiators

1. Long Life & Reduced Opex
With a 15-year floating design life, these batteries help extend service intervals and reduce lifecycle operating costs, making them attractive for high-availability infrastructures.

2. Flexible Installation
Thanks to their non-spillable, sealed design and electrolyte suspension system, installations can be arranged horizontally or vertically as suited to rack or space constraints.

3. Maintenance Simplicity
By eliminating the need for periodic watering or equalising charges, the UXL range simplifies preventive maintenance. This is especially beneficial in remote or difficult to access sites.

4. Safety & Environmental Consideration
Flame retardant casings and sealed systems reduce risk in critical installations. And at end of life, the batteries’ lead and plastics are recyclable, aligning with sustainability goals.

5. Proven Field Track Record
The design is based on decades of successful deployments. It is trusted in utilities, telecom, rail, and industrial settings where failure is not an option.

Ideal Use Cases & Sectors

Because of its reliability and long life, the UXL range is especially suitable for:

• Telecommunications sites: powering base stations, switching centres, and microwave links

• Utility & power station backup systems: ensuring continuity during grid disturbances or outages

• Rail signaling and communications: vital systems for safety and scheduling

• Industrial control rooms & data centers: supporting critical DC bus rails in uninterruptible configurations

• Remote or harsh environments: such as mining camps, off-grid installations, or infrastructure in extreme climates

In each scenario, the requirement is for power systems that deliver stability, reliability, and minimal interruption — qualities the UXL series is built to provide.

Deployment Tips & Best Practices

• Environmental control: Maintain stable temperature control (ideally around 25 °C) to preserve design life. Extreme heat accelerates aging, while cold slows performance.

• String sizing & redundancy: Design battery strings with capacity and redundancy margins (e.g. N+1, N+2) so that one module failure does not compromise the entire bank.

• Monitoring integration: Use battery monitoring and test connections to actively track voltage, internal resistance, and health without taking the system offline.

• Proper installation orientation: Though horizontal and vertical mounting are allowed, avoid continuous inverted use. Ensure correct rail and terminal insulation.

• Lifecycle planning: Even with a 15-year design life, plan for gradual replacements or capacity expansion based on aging curves and internal diagnostics.

• Recycling & disposal: When a battery reaches end of useful life, ensure proper recycling channels are used to recover lead and plastics responsibly.

Conclusion

The Yuasa UXL Range represents a highly reliable, low-maintenance battery solution tailored for mission-critical installations. Its strength lies in its long life, sealed and safe construction, flexible mounting options, and design resilience. When properly integrated into a larger power system, it provides confidence and durability under demanding conditions.

For organizations seeking a durable VRLA battery platform backed by strong technical support and expertise, look no further than the solutions offered through Intelepower, a specialist in high integrity power systems.