Green Star Pack of 4 AAA 1.5 V R03 batteries, Extra Stark, Mercury Free Suitable for Lights and Remote Control, MP3 Players, Cameras, and other electronics Accessories Toy.: Amazon.de: Electronics & Photo
Universal Digital Battery Tester, Digital LCD AA/AAA /C/D /9V/1.5V Button Cell Battery Volt Tester, Quickly Test All Different Kinds of Batteries: Amazon.com: Electronics