Storying batteries in the fridge to preserve their capacity is more of a myth than a fact but it is based on actual science. Batteries do prefer cold environments however refrigerating them is not a wise thing to do in a household fridge plus not all chemistries will experience a benefit of doing so.
Alkaline and primary lithium 1.5V batteries are the two most common battery chemistries used in household batteries. You will find them in almost all sizes like AA, AAA, 9V and others. In this article, you will learn about the differences in energy density, voltage characteristics, weight and more on simple to understand graphs and charts.
NiMH is something like a successor to the NiCd battery which doesn’t mean that it is a better choice in all applications. However thanks to some serious problems the NiCd battery has, the NiMH cells have taken the throne. In this article you will se a detailed comparison between these two battery chemistries.