Alecto BTT2 Battery Tester

* The Alecto BTT2 is a universal battery tester that allows you to see at a glance the capacity of your batteries thanks to its digital screen. * The BTT2 is easy to use and works with all common batteries, such as: AA, AAA, C, D, 9V block. * Place the battery correctly between the + and - poles of the battery tester (a 9V battery is placed at the bottom). * The holders are flexible and adapt to the most common battery formats. * Once the battery is correctly placed, you can immediately read the battery status on the tester. * Four different values are clearly indicated on the tester.