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An uninterruptible power supply is a product designed to provide protection from mains borne power problems and a source of backup power when the mains power supply fails. For most people, the two main questions when deciding on the right UPS solution for their application is what size UPS do I need and how long a runtime is required.

Lithium-ion batteries represent a technology that can disrupt the traditional data centre UPS market place and its reliance on valve regulated lead acid (VRLA) batteries. Other energy storage technologies have tried to disrupt this market place, including super capacitors and DC flywheels. The benefits of lithium-ion (li-ion) batteries mean that this new battery technology is rapidly gaining acceptance and disrupting other traditional industries including transportation and grid-scale energy storage.

Uninterruptible power supplies have several consumable parts of which the battery set is the costliest requiring replacement at least once or twice during its working life. What costs should you take into consideration when deciding whether to replace your UPS batteries or upgrade to a new UPS system?

Over 80% of all uninterruptible power supply service issues are battery related. UPS batteries age whether in use or in storage. This is because a battery stores electrical energy using a chemical process and their working life is dependent upon a number of factors including: charge/discharge cycles, operational temperature, charging technique and their overall design and build quality.

Uninterruptible power supplies need a stored energy reserve if they are to keep critical loads running during a power outage. Traditionally this has been a set of lead acid batteries and over the years there have been several attempts to replace these including DC flywheels and super capacitors.

Ever since the UK Government introduce the feed-in-tariff (FIT) for solar PV and wind turbine installations, one of the biggest challenges has been how to store the generated energy for later use. Lead acid batteries have limited capabilities when it comes to frequent energy storage and discharge cycles and are more suited to standby power applications. Applications including electric vehicles and mobile computing applications also required an energy storage mechanism that could cope with rapid charge/recharge cycles and offer a longer working life. Lithium-ion batteries have rapidly become the energy storage device for these applications and are slowly being adopted into UPS system applications.

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Viewing category 'UPS Batteries'

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