I thought I would do a little digging into this myself. I read the FAQ at:
https://www.indiegogo.com/projects/batteriser-extend-battery-life-by-up-to-8x#/storyThis is one of the questions:
What do you mean that we tap into 80% of a battery's unused energy? Where is the up to 8x coming from?
With millions of different devices designed by different companies with different specifications for different applications, one number does not fit all. Mileage will vary, and some devices will get more battery life extension from Batteriser than others. Instead of arguing the best design cases vs. the worst, it would make sense to look at ACTUAL data from the field.
Although there have not been a lot of studies on the amount of energy left in batteries as they are thrown away, a very well done study was presented in the International Conference for Battery Recycling by Dr. Rolf Zinniker. He collected "dead" batteries from 19 different recycling locations/centers and the resulting experiments and measurements showed the following results:
*Percentage relative to average charge in multiple types of batteries
This study shows that 10% of the batteries thrown away have roughly enough energy left in them to be considered Unused. 20% of the perceived "dead" batteries have, on average, 93% of their energy still left in them. This study further shows that if you take an average of 30% of the "least Dead" batteries, 84% of energy is still left inside. . If the device could have continued to operate at the same rate of power consumption until all the energy was drawn from the battery, the devices could have lasted roughly from 2 times to 14 times longer, based on this study. As can be seen from the actual real life data on batteries that are thrown away, Batteriser could significantly increase the battery's operating life by tapping into the energy that is thrown away. The full text of the study can be found at:
http://www2.ife.ee.ethz.ch/~rolfz/batak/ICBR2003_Zinniker.pdfLet me start picking this apart.
The concept for unused energy comes from a study of batteries in a recycle bin.
This a non-representative sample. I would want to consider how many batteries end up in the recycle bin and how many end up in the landfill.
I could see how somebody had a product that didn't work or they didn't want it any more and separated the perfectly good batteries from the product for disposal.
I have probably discarded old, but perfectly good batteries, from equipment like camera flashes ( I am showing my age) and DMM because I did want the batteries to leak and damage the product.
If you take these batteries and put them in a product. The product will work.
You do not need anything to extract additional energy from this group of batteries. You simply need to put them in a functional product.
As a battery is de-pleated the ESR rises. This was demonstrated by the Monkey and the Cal State Professor.(Did you like the way I did that?)
These batteries may work in low power devices where the current draw is low.
Again nothing is needed - Just the desire to move the batteries to a low power device.In short, the data obtained from the study of batteries in a recycle bin, is proof that people discard them without testing them. It is
NOT evidence that products leave a lot of unused energy in the batteries. People did that.
The Batteriser is not available yet. But I would hazard a guess that it is low power synchronous boost regulator. It would look something like this:
The FB divider would be adjusted for Vout 1.5V
Regards,
Jay_Diddy_B