The little battery is 12 volts. The other one is a typical AA battery of 1.5 volts. : r/mildlyinteresting
What is the voltage of an AA battery compared to a D cell battery? - Quora
batteries - How much energy is stored in a AA battery when its voltage has dropped to 1.2V? - Electrical Engineering Stack Exchange
Battery Arrangement and Power | HowStuffWorks
EBL USB Rechargeable Lithium AA Batteries - 1.5V 3300mWh Long Lasting – Camera Commons
Duracell® PC1500 | Mallory Safety and Supply
How to make a 12-volt battery out of AA batteries - Quora
News - How Many Volts is a AA Battery?
A complete guide to aa batteries-Tycorun Batteries
Overview of Batteries in Series or Parallel - Battery Products - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key
AA battery - Wikipedia
All about 1.5v battery - is 1.5v battery the same as other battery-Tycorun Batteries
Understanding your circuit
IMPECCA Double A Batteries, High Performance 1.5 Volt AA Alkaline Battery LR6 (4 Pack) Everyday Clocks Remotes Games Controllers Toys & Electronics - Walmart.com
When is a 1.5 volt AA battery dead? - Quora
AA battery - Wikipedia
What is the minimum voltage for a AA battery? (i.e. at what voltage is it dead) - Quora
Energizer EN91 1.5 Volt "AA" Size Industrial Alkaline Battery, 24/Pkg 144/Case
Rayovac High Energy AA Batteries (60-Pack), Double A Alkaline Batteries 815-60PPJ - The Home Depot
Everything You Need To Know About AA Batteries | RS
Amazon.com: Duracell AA Alkaline Batteries 1.5v (2 Pack) MN1500 (LR6) : Health & Household
