X-ValuePackage Includes：1 battery box + 1 battery tester Size:battery case: 11.8x9.5x3.7 in battery tester：4.3x2.4x1 in The number of various batteries that can be accommodated in the battery box:AA:107 AAA:71 C :9 D:7 9V:9 coin cells:30+Features:The battery case organizer can store all the batteries used in daily life.We have conducted a lot of market research on the battery box, scientifically designed the spatial arrangement of the battery box, and designed the notch of the large battery to the bottom of the battery box, so it will not tilt when carrying or hanging. Frequently Asked Questions: 1、Does the battery tester need batteries?No, the battery tester can be used without installing a battery. 2、Can the battery box be hung on the wall or taken out?Yes, the battery box has a handle and is made of sturdy material. It can be hung on the wall and carried by hand when going out. 3、How to distinguish between old and new batteries?You can use the battery tester to test the status of the battery. In addition, you can put a small label on the waste battery and store it in the battery box. After the waste battery has been collected in a certain amount, you can reasonably discard the waste batteries to reduce pollution and protect the environment. (tips: A waste battery is discarded unreasonably, which will pollute 600,000 liters of water，cause one square meter of land to lose any use-value, and the leaked heavy metals will harm the human body, and even be carcinogenic.) 4、Is the battery box easy to bend and deform after being filled with batteries？No, the material of our battery box is strong, and we have thickened the hinge of the battery box. 5、Can the battery box fit in a normal backpack?The size of this battery box is 11.8x9.5x3.7 in, which can fit in a normal large backpack.