Experienced users know that traditional
lead-acid batteries are often considered the ‘weak link’ in their
Data center’s power chain. With strings and strings of batteries required to support a modern facility, it might feel as if a possible failure is lurking at any time.
These batteries tend to be high maintenance, heavy, and in need of frequent replacement. Innovations in monitoring, management, and service have helped to alleviate some of these pains, but with marginal success and an added cost.
Battery Reliability
According to different research centers study in 2013 on data center outages, 55% of the unplanned failures were tied to the common lead-acid battery (Fig 1).
Figure 1:Over 50% of Unplanned Outages Caused by Battery Failure
Follow up studies in 2016 have shown some reduction, but the magnitude is still startling. Given proper service combined with remote monitoring, EverExceed has demonstrated that these batteries can be effectively managed with their ultra tech
Smart IT Cabinets.
Pain of Replacement
On average,
VRLA batteries which support critical applications need to be replaced every 4 to 5 years. With a high quantity deployed, users may feel they face a near perpetual replacement cycle. Each time this occurs, it consumes time and money, and creates additional headaches for the site and its personnel.
So can the right lithium battery provide relief?
Benefits of Lithium-Ion Batteries
From the onset, the attributes of Lithium battery over VRLA have been rather significant.
Longer Life
Many lead-acid battery users have stated, “Why do my VRLA batteries need to be replaced in just 4 to 5 years?”
In short, this is symptom of the effective life of the lead-acid battery in critical operations. We can understand why users are excited when they understand that lithium batteries for data centers can achieve life spans of 4 times that of VRLAs (Fig 2). This translates into fewer battery replacement cycles and fewer operational disruptions.
Figure 2:Trends of VRLA replacements at 77°F
Less Weight
The comparative power provided in a lithium solution versus a VRLA delivers a significant weight savings of up to 60%.This can reduce the floor-loading thresholds, which in turn can reduce facility construction costs. Lithium batteries also open up the capability to locate batteries in places that have been off limits to heavy VRLA counterparts, such as high-rise buildings. Users may also see lower shipping costs in some situations.
Smaller Size
Lithium batteries have higher energy densities than VRLAs. This fact not only saves weight, but allows the solution to be up to 70% more compact. This means an operation can often avoid big battery room(s). This helps the operation center to maintain smaller footprint, which results in less cooling area, and less cooling costs. For green field sites specifically, space saved can be realigned for better use or omitted from designs to reduce capital construction costs.
Accommodate Higher Temperatures
Depending on the Lithium chemistry, batteries can safely operate at higher ambient temperatures without degrading. This can save on cooling costs over VRLA and open up more flexible location options.
Shelf Life
Another benefit that is getting more attention is shelf life. Whereas VRLA batteries require a "top off" charge every six months, Lithium batteries can last 18 months with no further attention.
BMS
Famous brands like EverExceed use high tech BMS which includes all kind of electrical and thermal protection for your battery, which ensures the safe and reliable operation of your data center.
So for not only having the long cycle life, uninterrupted discharging performance, fast charging capability, higher energy density, but also if you need a lithium battery which will give you worry free operation, and less stress regarding the safety,
EverExceed lithium iron phosphate batteries are the best choice for you, because EverExceed LFP guarantees you NO FIRE, NO EXPLOSION!
