I don't think this sentence from the article is correct: "Alkalines release power consistently right up until they die, whereas a rechargeable battery’s voltage

I don't think this sentence from the article is correct: "Alkalines release power consistently right up until they die, whereas a rechargeable battery’s voltage gets gradually lower and lower over time, slowing down the device or cutting off power prematurely." If you look at the discharge curve for an alkaline battery (for example, http://madscientisthut.com/wordpress/wp-content/uploads/2013/12/Kirkland-1024x458.jpg http://madscientisthut.com/wordpress/wp-content/uploads/2013...), it seems more linear than for a NiMH cell (http://4.bp.blogspot.com/_7azY596Jbs8/TVHgoP3gUkI/AAAAAAAAG4k/M2WIdx3gVKM/s1600/nimhChart1.png http://4.bp.blogspot.com/_7azY596Jbs8/TVHgoP3gUkI/AAAAAAAAG4...). In other words, it's the NiMH cell that gives consistent voltage until it dies, whereas the alkaline battery will gradually lose voltage. (It's not totally clear, some other graphs of alkaline discharge curves do show more of a "knuckle", with a flat initial section and then a steep drop-off).