This universal button cell battery voltage tester checker is compatible with AAA, AA, C, D, 9V, and 1.5V batteries. It is a reliable and efficient tool for testing the voltage of your batteries. The product is made by an unbranded/generic brand and manufactured in China.

It is suitable for use with a variety of batteries and is perfect for multipurpose batteries and power needs. This battery tester checker falls under the category of consumer electronics and is a great addition to any toolbox for convenient and hassle-free battery testing.