What Is a UPS battery?

Server roomA UPS (uninterruptible power supply) battery is typically found between the computer being powered and the mains plug socket. Depending on the overall power capacity and the intended usage specifics, the average office or home UPS battery backup is a relatively small, compact ‘smart’ unit that is made around a high-drain power cell that’s rechargeable. Although, eventually you will need a UPS battery replacement to maintain well-managed, secure systems.

Conventionally, it will most likely be a lead-acid (VRLA) battery, however continual advancements in Lithium-ion technology means that Li-ion cells are increasingly becoming a widespread component at
the very centre of modern UPS systems.

Lead Acid Batteries

Lead acid batteries, or VRLA, require low-maintenance and are generally looked upon as standard, reliable UPS power supply workhorses with a lifespan that can run for around 5 years or so. The letters ‘VR’ in the
VRLA phrase means ‘valve regulated’, which refers to the fact VRLA batteries have auto operated and built-in vent systems that are used in controlling gradual gas release buildup at particular points of the battery charge-drain cycle. This essential functionality is initiated by internal pressure sensors and like other aspects of a VRLA cell, it will work best when the battery is maintained in a dry and temperature-controlled niche like an average centrally-heated room space in house or office.

Li-ion UPS Batteries

By contrast, Li-ion UPS batteries are generally lightweight and far more compact and also boast having a range of inbuilt power management features like voltage balancing and advanced charge for booting purposes. The majority of brands also provide a somewhat longer shelf-life compared to lead acid batteries, which means that over a long timeline, they may come to prove they are the best economic choice. However, UPS units feature Li-ion batteries that are usually priced to act as a reflection of their significantly high production cost and It is also important to note the original buy-in will be relatively cheaper when it comes to a VRLA-based unit.

VLA UPS Batteries

UPS batteries also have a third option, namely VLA types or ‘wet/flooded cell.’ As purchasable alternatives in off-the-shelf or high street UPS systems, they are much less widely available due to the fact that they are intended for particular environments and applications. For starters, their chemical composition means they have the potential of posing a danger unless they are stored in separate battery storage safe-rooms, and also need occasional user maintenance when it comes to topping up distilled water levels and constant monitoring of their calibration data and equalisation.

Although this fact makes VLA batteries totally impractical for many home users and even the management of workplace environments, wet cells can provide distinct benefits in certain use cases like large-scale server centres where stability and excellent long-term reliability are the main requirements above practicality or convenience.

Elements of UPS Batteries

Adding to the housing itself and battery, UPS power supplies include a range of other features that largely depend on the overall cost and model of the unit. These may consist of elements like:

–Advanced on-board performance monitoring software

–Management card slots and other data-reading functioning

–Power surge, deep discharge, temperature protection and/or low voltage

–LCD/OLED readout panels and display screens

–Graphical calibration interfaces

–A wide range of external hardware I/O expander (input/output) and connectivity options

–Variable numbers of outlets and power sockets

–‘Hot swappable’ battery replacement and/or live UPS maintenance options

–Various IP ratings