Comments on: Hybrid Capacitors Provide Long-lasting Energy to LED Lights http://cleantechnica.com/2011/08/24/hybrid-capacitors-provide-long-lasting-energy-to-led-lights/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Tue, 30 Dec 2014 17:12:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 By: Chad Hall http://cleantechnica.com/2011/08/24/hybrid-capacitors-provide-long-lasting-energy-to-led-lights/#comment-103889 Thu, 01 Sep 2011 17:53:00 +0000 http://cleantechnica.com/?p=29821#comment-103889 Hello,

A hybrid capacitor could work for this application. But, due to ESR that is higher than an ultracapacitor, an ultracapacitor would actually be a better fit for a hand-crank application.
There are several hand-crank lights using ultracapacitors in the market today. The ultracapacitor offers the following advantages over batteries for this type of product:
– Low temperature performance down to -40°C
– High cycle life
– No lower voltage limit (can be stored for years and still work)
– Ability to accept charge from 0V
– Lightweight

I’m happy to discuss more: chall@ioxus.com.

Best regards,
Chad Hall
Ioxus, Inc.

]]> By: Anonymous http://cleantechnica.com/2011/08/24/hybrid-capacitors-provide-long-lasting-energy-to-led-lights/#comment-103567 Wed, 24 Aug 2011 22:54:00 +0000 http://cleantechnica.com/?p=29821#comment-103567 How do these things work in hand cranked flashlights? I have several dead ones that use NiMH batteries that die (and can’t be recharged) because of 1. Self-discharge, 2. Long shelf storage between uses, 3. Infrequent use and partial charge.
These might be a great alternative, if they deliver better performance than NiMH batteries.

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