1、Digital Display for Precise Readings: Equipped with a digital display screen that provides clear and accurate readings of battery. The digital display ensures that users can easily and precisely determine the remaining charge in their batteries, helping them manage and replace batteries as needed. 2、Wide Range of Battery Types Supported: Compatible with a variety of battery types, including D battery, C battery, AA battery, AAA battery, 1.2V-4.8V battery, 9V battery, button battery, 21700 16340 Li-ion battery. This versatility makes the tester useful for a wide range of applications, from household devices to professional equipment, ensuring that users have a single tool to test all their batteries. 3、Easy Push and Pull Detection: Features an easy push and pull mechanism for quick and convenient battery testing. The simple and intuitive design allows users to insert and remove batteries easily, making the testing process fast and user-friendly. 4、Durable and Reliable Construction: Made from high-quality ABS plastic, ensuring durability and longevity. The robust construction means the tester can withstand regular use and potential drops, making it a reliable tool for both home and professional use. 5、Compact and Portable Design: Compact and lightweight, making it easy to carry and store. The portable design allows users to take the tester on the go, ensuring they can check battery levels anytime and anywhere, whether at home, on a camping trip, or at work. Item: Battery Tester Material: ABS Main Color: Black Measurable Batteries: D Battery, C Battery, AA Battery, AAA Battery, 1.2V-4.8V Battery, 9V Battery, Button battery, 21700 16340 Li-ion Battery Size: 9.45cm/3.72inch*3.9cm/1.53inch*1.8cm/0.7inch Package Size: 14.5*9.4*2.5cm Package Weight: 48g 1 * Battery Tester