The batteries tested include the Duracell, Energizer, Amazon Basics, Harbor Freight Thunderbolt, Duracell Quantum, Dollar Store, Rayovac, Eveready, and Energizer Lithium.

Energizer Lithium = 3300mAH @ 300mA
Energizer = 1800mAH @ 300mA

mAH per penny = Amazon Basics 1st, Energizer, Rayovac & Eveready Silver 2nd