Comments on: Battery life for long term deployment http://www.sensorblog.com/2008/09/06/battery-life-for-long-term-deployment/ This blog covers everything about sensor networks. Tue, 07 Jul 2009 05:40:09 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: arctanck http://www.sensorblog.com/2008/09/06/battery-life-for-long-term-deployment/comment-page-1/#comment-5468 arctanck Thu, 29 Jan 2009 18:56:44 +0000 http://www.sensorblog.com/2008/09/06/battery-life-for-long-term-deployment/#comment-5468 Had a look at their website, it seems that the battery need to "harvest" energy from their wireless recharger. Interesting, will definitely want to find out more about it. Had a look at their website, it seems that the battery need to “harvest” energy from their wireless recharger. Interesting, will definitely want to find out more about it.

]]> By: Eva Celia Corbett http://www.sensorblog.com/2008/09/06/battery-life-for-long-term-deployment/comment-page-1/#comment-5453 Eva Celia Corbett Wed, 28 Jan 2009 19:35:45 +0000 http://www.sensorblog.com/2008/09/06/battery-life-for-long-term-deployment/#comment-5453 There has been talk surrounding using energy harvesting to recharge microbatteries which supposedly last thousands of cycles and can be self-sufficient. US companies like Cymbet and Infinite Power Solutions claim their rechargeable batteries can last years by hooking up an e-harvesting method - and they are absolutely correct. But both companies offer batteries that cannot provide above 1 MILLIamp hours of capacity - that's a problem. Most of us sensor developers need capacities of 10 to 100s mah with expectations for recharging under 30 mins. Which is why I was interested in a recent rumor, along with a demo I heard of this past fall, that a "microbattery" company is launching a 10mah thin and small battery, complete with a wireless energy harvester to charge the battery. The company, Planar Energy Devices, already demonstrated the same battery (I think) during the Embedded Systems Conference and powered a temperature sensing network - it lasted for hours, two day straight AND they then showed no degradation at the end of the show. There has been talk surrounding using energy harvesting to recharge microbatteries which supposedly last thousands of cycles and can be self-sufficient. US companies like Cymbet and Infinite Power Solutions claim their rechargeable batteries can last years by hooking up an e-harvesting method – and they are absolutely correct. But both companies offer batteries that cannot provide above 1 MILLIamp hours of capacity – that’s a problem.

Most of us sensor developers need capacities of 10 to 100s mah with expectations for recharging under 30 mins. Which is why I was interested in a recent rumor, along with a demo I heard of this past fall, that a “microbattery” company is launching a 10mah thin and small battery, complete with a wireless energy harvester to charge the battery. The company, Planar Energy Devices, already demonstrated the same battery (I think) during the Embedded Systems Conference and powered a temperature sensing network – it lasted for hours, two day straight AND they then showed no degradation at the end of the show.

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