Battery box with tester

This AA battery box contains the BT-168 PRO battery tester. The advantage of this tester is that it does not require an additional battery to operate. It is not limited to just AA batteries; it can check any battery up to 4.8V. The lid of the box has values that help you easily determine if the AA batteries are charged to approximately 100%-50%-0%. This allows you to find out whether a battery is completely new, used, or completely drained. One benefit of this box is that you can instantly check the battery status directly on the box where your batteries are stored. A small screwdriver is all you need to insert the electronics. It's really not complicated. The tester can be easily disassembled. The display is loosely inserted and held in place by the printed circuit board. Remove the metal contacts for measuring voltage, but be careful as they are connected to the circuit by a wire. You won't need anything else from the tester.To assemble the box, you'll need glue and some