Batteriser is a $2.50 gadget that extends disposable battery life by 800 percent
Found on PC World on Thursday, 04 June 2015
Once the battery manufacturers grasp what Batteriser can do—assuming it works as advertised—they might be worried by this simple gadget, which will cost just $10 for a pack of four when it goes on sale in September.
Instead of using just 20 percent of all the power hidden inside of your Duracells and Energizers, Batteriser makes effective use of the remaining 80 percent.
So basically a Joule Thief with a small form factor. While it is great to see that someone creates a useable small gadget like this, it also makes you wonder why manufacturers of remote controls, wireless keyboards, mice and everything else that lives on alkalines don't use this dead simple circuit in their devices.