Product category:
Batteries and Chargers
News Release from: Saft Industrial Batteries | Subject: Intensium 1 Power
Edited by the Electronicstalk Editorial
Team on 12 July 2007
Li-ion batteries survive global warming
Extended operating life at high ambient temperatures secures IPTV backup application for rechargeable lithium-ion batteries.
A leading US provider of voice, video and data services has selected Saft Intensium 1 Power rechargeable Li-ion (lithium-ion) batteries as one of the solutions to provide an exceptionally compact, reliable, safe and zero-maintenance source of backup power for its developing IPTV services in a demanding outside plant cabinet application, where internal summer temperatures can reach +65C The contract, which is Saft's first series order from a major US telecomms operator for the new Intensium 1 Power design, could eventually see thousands of the specialised telecomms batteries installed in outside cabinets across the USA over the next three to five years
This article was originally published on Electronicstalk on 1 Oct 2007 at 8.00am (UK)
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The deployment of Intensium 1 Power will start in the third quarter of 2007.
Curtis Ashton, the operator's Senior Staff Technical Support Engineer in charge of the power architecture of this project, says: "The extended lifetime offered by the Intensium 1 Power batteries, combined with the fact that, unlike conventional batteries, they will require no maintenance throughout their service life, enables us to take advantage of an optimised TCO (total cost of ownership) for the batteries over the whole life of the outdoor cabinets".
This application requires a 48V battery capable of providing up to 700W for 2 to 25min to ensure continuity of the IPTV services.
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In the case of relatively short duration failures of the main power supply (more than 85% of outages will be covered by this backup solution) this will prevent customer set-top boxes from rebooting (which is a time-consuming process).
Traditionally, a VRLA (valve regulated lead acid) battery would be installed in the outside cabinets.
However, the operator's territory - Arizona, New Mexico, Utah, Idaho, Montana, Wyoming, Colorado, Nebraska, South Dakota, North Dakota, Minnesota, Iowa, Oregon and Washington - includes some of the hottest states in the USA, where practical measurements show that the battery would experience temperatures ranging from 0 to 65C over a year, and averaging 40C.
At these elevated temperatures VRLA batteries age rapidly, resulting in low reliability and premature failure.
Instead, it was decided to specify, among a couple of other solutions, Saft Intensium 1 Power batteries that meet the GR-3108 class 3 specification for safe operation from 0 to 70C while offering a predicted lifetime of at least five years, even in these demanding conditions.
They are expected to last longer than 10 years in more moderate climes.
A further advantage of the Intensium 1 design for this application is that it can deliver the same performance as a VRLA battery, but in a self-contained rack-mounted unit that is a quarter of the size and weight.
The battery, which is compatible with standard telecomms rectifiers, can be handled just like any other plug-and-play rack-mount equipment.
It also offers extra flexibility for the outside cabinet design as there is no need for a dedicated battery area, and its high temperature operating capability eliminates the need for an air conditioned environment. Request a free brochure from Saft Industrial Batteries ...
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