【Universal Battery Tester】: This battery tester is suitable for AAA, AA, C, D, 1.5V, 9V and button type batteries, and can be used to test bad battery types for both standard and rechargeable household batteries.
【Operates without Additional Power Supply】: This device does not require additional batteries to work, and by being activated by the battery level being tested, it can shorten the testing time and avoid unnecessary battery consumption.
【Digital Display Screen】：This battery tester has a digital display that shows the results directly, allowing you to clearly see the various types of battery levels compared to the list on the back of the tester.
【Easy to Carry】:The portable battery tester is small and lightweight, easy to carry and can test batteries anywhere; small enough to fit in a kitchen drawer, desk, toolbox or pocket.
【Essential Home Tool】: When testing with this product, check if the battery is in contact with the two contacts of the tester, it can quickly tell you if the battery is good or needs to be replaced, a must-have home testing tool.