Long-Life Lithium Batteries provide end-of-life indication.
July 10, 2007 -
While enabling end users to optimize service life of original battery, PulsesPlus(TM) lithium thionyl chloride batteries simultaneously ensure continuous service through scheduled battery replacements. Available 3.6 and 3.9 V system versions offer 5% and 10% end-of-life indication, respectively. Both versions have 20 year operating life. Available in sizes from ½ AA to DD and multi-cell packs, batteries feature bobbin type construction, and hybrid layer capacitor.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Tadiran
2 Seaview Blvd., Suite 102
Port Washington, NY, 11050
USA
Tadiran Develops Long-Life Lithium Batteries with an "End-Of-Life" Indication
Port Washington, NY - Tadiran Batteries, a leading manufacturer of lithium batteries, has just introduced an improved version of its PulsesPlus(TM) battery allows for an indication at end-of-life, allowing end users to maximize the service life of the original battery while at the same time 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 (such as the bottom of the ocean or the top of a mountain) or are not consumer replaceable (sealed devices). 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 for years to come. By contrast, PulsesPlus batteries offer the potential for end-of-life indication. The new improvements come in two distinct families:
- 3.6v system with a 5% end-of-life indication (when the battery uses up 95% of its capacity, a remote indicator can advise the end users that 5% of operating life remains)
- 3.9v system with a 10% end-of-life indication
Utilities using AMR systems designed with a 20 year operating life will no longer have to replace their meters after 15 years to avoid system downtime. Based upon the PulsesPlus system they chose they will be notified 1 or 2 years before the battery reaches its end-of-life - providing more than enough time to schedule replacements. This will allow longer operating time for devices and save on replacement costs.
Maintenance trips to remote sensing devices will be less frequent and system reliability will improve.
Available in a wide variety of sizes from ½ AA to DD and multi-cell packs, PulsesPlus batteries feature bobbin type construction, plus a unique hybrid layer capacitor, which offers unique performance advantages, including::
o Higher voltage - 3.6V and 3.9V versus 3.0V
o Higher capacity - e.g. 19Ah for D size cell (versus 7 Ah for other Lithium batteries). Other sizes at equally higher capacity.
o Lower self discharge - less than 1% per year (versus 5% per year with spiral wound)
o Lower ESR (Equivalent Serial Resistance)
o Widest operating temperature -40ºC to 85ºC (versus 0ºC to 60ºC)
o Greater safety - in comparison to other Lithium chemistries
o Glass-to-metal hermetic seal to protect against leakage.
o ISO 9001 certified and UL-recognized
Tadiran manufactures a complete line of lithium thionyl chloride batteries, including a variety of primary cylindrical batteries, Pulses Plus(TM) batteries for high current pulse applications, coin-sized cells and custom battery packs. Tadiran products are available in a variety of terminations and assemblies. High temperature and high power models are also available. For more information, contact: Jim Gadomski at (516) 621-4980 or visit the web site at www.tadiranbat.com
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