http://money.cnn.com/2015/06/02/technology/make-battery-last-longer-batteriser/index.html (http://money.cnn.com/2015/06/02/technology/make-battery-last-longer-batteriser/index.html)
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Thoroughly debunked on revolution-green and eevblog https://www.youtube.com/watch?v=4iEshd6izgk
Quote from: FatBird on June 14, 2015, 10:24:58 AM
http://money.cnn.com/2015/06/02/technology/make-battery-last-longer-batteriser/index.html (http://money.cnn.com/2015/06/02/technology/make-battery-last-longer-batteriser/index.html)
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If one has a device that is so badly designed that it cuts out at 1.4V, and that device has a relatively low drain, then this device can provide about a 5X - 6X gain in battery life for that device. I do not know of any such devices. The vast majority of poorly designed devices drop out around 1.2V where roughly 40% of the battery life remains, not 88% as at 1.4V. In those devices about a 2X gain can be had. Most devices these days will run a battery down to 1.1V where only about 15-20% life remains against a 0.8V drop out. Assuming that the circuitry is 100% efficient ( which it isn't ) you would get 1.0/0.85 - 1.0/0.8 or 17% - 25% more life out of the battery. If their converters are 90% efficient, then you get 0.9/0.85 - 0.9/0.8 or 5% to 11% more life.
See also: https://www.youtube.com/watch?v=4iEshd6izgk