![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
![batteries - Is there a battery with smaller cells inside of it? - Electrical Engineering Stack Exchange batteries - Is there a battery with smaller cells inside of it? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/YORBF.jpg)
batteries - Is there a battery with smaller cells inside of it? - Electrical Engineering Stack Exchange
![Amazon.com: Energizer Alkaline Power AAA Batteries (32 Pack), Long-Lasting Triple A Batteries : Health & Household Amazon.com: Energizer Alkaline Power AAA Batteries (32 Pack), Long-Lasting Triple A Batteries : Health & Household](https://m.media-amazon.com/images/I/91ass+ZYjcL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Energizer Alkaline Power AAA Batteries (32 Pack), Long-Lasting Triple A Batteries : Health & Household
Why are Tesla car batteries made up of a bunch of tiny batteries (looks like AA battery) and not just one big battery? - Quora
![Amazon.com: Amazon Basics 36-Pack AAA Alkaline High-Performance Batteries, 1.5 Volt, 10-Year Shelf Life : Health & Household Amazon.com: Amazon Basics 36-Pack AAA Alkaline High-Performance Batteries, 1.5 Volt, 10-Year Shelf Life : Health & Household](https://m.media-amazon.com/images/I/611n29U6FsL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Amazon Basics 36-Pack AAA Alkaline High-Performance Batteries, 1.5 Volt, 10-Year Shelf Life : Health & Household
![I dropped a 9v battery & discovered there is actually 6 smaller batteries inside : r/mildlyinteresting I dropped a 9v battery & discovered there is actually 6 smaller batteries inside : r/mildlyinteresting](https://i.redd.it/3chkefbp4cd61.jpg)