The Alecto BTT2 is a universal battery tester that displays the capacity status of your battery on a digital screen. The BTT2 is easy to use and compatible with all commonly used batteries, such as AAA, AA, C, D, and 9V block batteries. Simply place the battery in the correct position between the positive and negative edges of the tester. The holders are flexible and can accommodate the most common sizes. Once the battery is properly positioned, you can directly read the status on the meter, which indicates three different levels clearly. The Alecto BTT2 battery tester is a must-have for every homeowner.

What's in the box? BTT2 battery tester.