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VOLUME -22 NUMBER 8
Publication Date: 08/1/2007
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August 2007 Issue
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Tadiran Develops Long-Life Lithium Batteries
Improved lithium batteries.
Port Washington, NY — Tadiran Batteries has introduced an improved version of its PulsesPlus
battery, which allows for an indication at end-of-life, so end users can maximize the service life of the original battery while ensuring continuous service through scheduled battery replacements. Lithium thionyl chloride batteries are typically used in applications where battery replacement or recharging is either impossible or extremely difficult. Applications such as automatic meter reading, wireless remote sensors, tracking devices for homeland security, oceanographic devices, RFID toll tags, etc. are often not easily accessible — it could be at the bottom of the ocean or the top of a mountain — or are in sealed devices that are not consumer replaceable. In addition to being non-replaceable, batteries suited to these applications must perform reliably in very harsh environments, and provide an operating life of up to 20 years. While lithium thionyl chloride cells operate at a very stable voltage over almost their entire operating lives, the lack of a drop in voltage over time has not allowed for an indication of battery state of charge. In many cases, batteries are replaced prematurely based on estimations of amount of remaining battery life, even though the cells could continue to operate additional years. The new batteries offer the potential for end-of-life indication. The new improvements come in two distinct families: 3.6V system with a 5 percent end-of-life indication (when the battery uses up 95 percent of its capacity, a remote indicator can advise the end users that 5 percent of operating life remains); and 3.9V system with a 10 percent end-of-life indication.
The new batteries are available in a wide variety of sizes from AA to DD and multi-cell packs. They use bobbin type construction, plus a unique hybrid layer capacitor, which offers special performance advantages, including higher voltage — 3.6V and 3.9V versus 3.0V; higher capacity — 19Ah for D size cells, instead of 7 Ah for other Lithium batteries, and other sizes have similarly higher capacities.
In addition, the new batteries have lower self discharge — less than 1 percent per year instead of 5 percent per year with spiral wound batteries. They provide the widest operating temperature range of -40 to +85°C (vs. 0 to +60°C).
For more information, contact: Tadiran, 2 Seaview Blvd., Port Washington, NY 11050
800-537-1368 or 516-621-4980 fax: 516-621-4517 Web:
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