Does putting batteries in the freezer make them last longer?
We searched on “batteries freezer” and also looked at several battery manufacturer’s web sites to find the answer to this question. The search results led to a very detailed frequently asked questions (FAQ) page about AA and AAA cell batteries, as well as its related battery myths page that provided a plethora of information about batteries. According to these sources, storing batteries in the freezer (or refrigerator) will make them last longer, but it depends on what kind of battery you’re using. And in the long run, it may not be worth the hassle. For alkaline batteries (the most common kind of household battery), putting them in the freezer will extend their shelf life by less than 5%. And cold batteries can’t be used immediately — you have to wait until they’ve warmed up to