Here at UPS Battery Shop we have many of the most popular brands of UPS batteries, including Yusua. A global leader in battery technology, the company was founded over 100 years ago in the last year of the First World War. It has an impressive legacy when it comes to battery technology.
Yuasa ENL (Enhanced Long Life) batteries are valve-regulated lead-acid (VRLA) batteries designed specifically for standby applications. Along with uninterruptible power supplies (UPS), they’re often used for emergency lighting systems, fire alarms, and the infrastructure for telecommunications.
Some of their most notable features include:
- A design life of up to 12 years at 20°C, making them suitable for long-term installations.
- Sealed, maintenance-free designs. No need for fluid top-ups or regular maintenance.
- Reliable in float applications. They’re ideal for scenarios where continuous charging and standby is required.
- Low self-discharge rate, making them perfect for environments where the UPS may be idle for long periods
In mission-critical facilities like hospitals, data centres and industrial control rooms, ENL batteries help ensure the lights stay on, literally.
Step 1: Understand Your Power Requirements
Before choosing a battery, you need a clear picture of your system’s power demands and backup expectations. Start by calculating:
- Load Capacity (in VA or kVA): Refer to your UPS label or manual.
- Desired Runtime. How long must your system operate during an outage? Five minutes? An hour? UPS batteries don’t just need to match your system’s voltage—they need to deliver enough capacity (measured in Ah) to support your load for the required time. Overshooting slightly is always safer than falling short, especially in critical applications.
Tip: Use a battery runtime calculator or consult your UPS manual for reference tables.
Step 2: Compare Technical Specifications
Yuasa ENL batteries are available in a number of sizes, each offering a different level of energy storage. Matching the right model means considering both voltage and ampere-hour (Ah) ratings.
The most common options include:
- ENL100-12: 12V, 100Ah – a solid mid-range option
- ENL150-12: 12V, 150Ah – ideal for medium-to-heavy UPS loads
- ENL200-6: 6V, 200Ah – used in systems requiring custom voltages
- ENL300-6: 6V, 300Ah – high-capacity choice for extended runtimes
Be sure to cross-reference your UPS’s supported input and configuration specs with the battery you’re considering.
Step 3: Factor in Configuration and Layout
UPS systems are often modular, allowing batteries to be connected in various ways:
- Series configuration boosts voltage by connecting battery voltages together.
- Parallel configuration increases capacity, enabling longer runtimes by combining ampere-hours.
Make sure you know how your batteries are wired and ensure any new ENL models match both the configuration and physical layout. This includes terminal orientation, spacing, and fitment within your battery enclosure.
Don’t overlook the length of the cable or routing space: a battery might technically fit, but tight corners can complicate installation.
Step 4: Confirm Compatibility with Your UPS System
Not all UPS units support all battery types, so to avoid issues with compatibility, always verify the following:
- Nominal Voltage: Match your battery voltage to your UPS input requirements (most home and office systems use 12V units).
- Charging Profile: Yuasa ENL batteries support standard float charge profiles, but check your UPS charge current and voltage regulation to avoid mismatches.
- Terminal Type: Ensure the battery terminals (e.g., bolt, flag, or stud) align with your UPS cable fittings.
Unsure where to start? Reach out to your UPS manufacturer or a technical support team to double-check compatibility.
Step 5: Environmental Conditions and Battery Life
While ENL batteries are built to last, their longevity depends heavily on them being correctly installed and the environmental controls. Here are a few tips to make the most of your batteries:
- Maintain stable temperatures: The ideal operating range is 20–25°C. Higher temps reduce lifespan.
- Ensure airflow: Avoid installing batteries in sealed cabinets or enclosed closets without ventilation.
- Regularly check batteries: Even sealed batteries should be inspected periodically for swelling or terminal corrosion.
If your system runs in a high-demand environment—like a data centre—consider redundant or hot-swappable battery arrangements for extra resilience.
Step 6: Choose a Trusted UK Supplier
Buying Yuasa ENL batteries from a verified distributor ensures authenticity, warranty coverage, and expert support.
Based in Hampshire in the UK, UPS Battery Shop is a leading supplier that offers:
- Authentic Yuasa products with full factory warranty
- Competitive pricing and volume discounts
- Fast deliveries across the UK
- Friendly expert advice to help you choose the right products
- Avoid grey market imports, which may lack proper support and can void your UPS warranty.
Choosing the right Yuasa ENL battery isn’t just about the price or size; it’s about making sure your UPS performs when it matters most.
By understanding your system’s power needs, confirming it’s compatible, and choosing a battery that fits both electrically and physically, you can extend your UPS lifespan and maintain operational peace of mind.
If you need help selecting the best option, contact the experts at UPS Battery Shop. They’ll guide you through the specs, sizing, and install questions so you get a battery that just works, when it matters most.
