I didn't like it because it shows all the batteries almost fully charged, even if they are almost depleted. It needs to be completely empty to show it as discharged.

It does not recognize some batteries (it did not recognize 3 out of the 20 I tested) but overall it does its job well and is fairly easy to use.

Overall good construction. It does its job. The springs are tight. Especially for watch batteries, they are difficult to insert or not at all.

Very useful for every home! The fantastic thing is that it works without a battery!

Ideal if you have many children's toys with small round batteries, try putting them on the edge of a screwdriver to make contact and test them.

It helped me to clean up the batteries that had run out, so that they can be recycled. It is compatible with most types of batteries and the indicator shows whether the battery power is good, weak, or insufficient. The construction could be a little better for its price. However, it does exactly what it promises.