![A coworker of mine opened up a big square Duracell battery. Turns out it's just 4 smaller batteries on a cardboard platform. : r/mildlyinteresting A coworker of mine opened up a big square Duracell battery. Turns out it's just 4 smaller batteries on a cardboard platform. : r/mildlyinteresting](https://i.redd.it/fl30t79gxhwz.jpg)
A coworker of mine opened up a big square Duracell battery. Turns out it's just 4 smaller batteries on a cardboard platform. : r/mildlyinteresting
![Jez @ Peak Electronic Design Ltd ๐๐ช๐บ on X: "The inside of the Duracell 12V MN21 battery is simply 8 button cells. Seems wasteful on packaging as the active volume must be Jez @ Peak Electronic Design Ltd ๐๐ช๐บ on X: "The inside of the Duracell 12V MN21 battery is simply 8 button cells. Seems wasteful on packaging as the active volume must be](https://pbs.twimg.com/media/EPnc6pEWsAQ9nec.jpg)
Jez @ Peak Electronic Design Ltd ๐๐ช๐บ on X: "The inside of the Duracell 12V MN21 battery is simply 8 button cells. Seems wasteful on packaging as the active volume must be
![Amazon.com: Duracell Coppertop C Batteries, 8 Count Pack, C Battery with Long-lasting Power, All-Purpose Alkaline C Battery for Household and Office Devices : Health & Household Amazon.com: Duracell Coppertop C Batteries, 8 Count Pack, C Battery with Long-lasting Power, All-Purpose Alkaline C Battery for Household and Office Devices : Health & Household](https://m.media-amazon.com/images/I/71+FCXwDapL._AC_UF350,350_QL80_.jpg)
Amazon.com: Duracell Coppertop C Batteries, 8 Count Pack, C Battery with Long-lasting Power, All-Purpose Alkaline C Battery for Household and Office Devices : Health & Household
![Amit Bhawani ๐ฎ๐ณ on X: "Never keep batteries in electronics you don't use regularly. (Thermometer with @Duracell batteries)๐ When a battery works, it releases power, the chemicals inside create a gas. After Amit Bhawani ๐ฎ๐ณ on X: "Never keep batteries in electronics you don't use regularly. (Thermometer with @Duracell batteries)๐ When a battery works, it releases power, the chemicals inside create a gas. After](https://pbs.twimg.com/media/FYUwPsvUsAAbZHA.jpg:large)
Amit Bhawani ๐ฎ๐ณ on X: "Never keep batteries in electronics you don't use regularly. (Thermometer with @Duracell batteries)๐ When a battery works, it releases power, the chemicals inside create a gas. After
![Duracell Duracell Coppertop 9V Battery, 2 Pack, Long-lasting Power, All-Purpose Alkaline Battery for your Devices 004133303961 - The Home Depot Duracell Duracell Coppertop 9V Battery, 2 Pack, Long-lasting Power, All-Purpose Alkaline Battery for your Devices 004133303961 - The Home Depot](https://images.thdstatic.com/productImages/cd7f2f2d-2fb9-43cc-af23-6e96c1e55f2c/svn/duracell-9v-batteries-004133303961-64_1000.jpg)