Type: Plastic Function: No power supply required Packaging: Normally packed in a PP bag and carton, or according to customer requirements Usage: This battery tester is suitable for testing various types of household batteries: AA, AAA, C, D, 1.5V, 9V and button cell batteries. Specifications Length: 5.2 cm Width: 5.3 cm Height: 1.9 cm Weight: 0.3 kg Material: Plastic Color: Black Description 【Compact and Convenient】: Simple but effective battery tester (Model: BT860). Small size, lightweight and easy to carry. 【No Power Supply Required】: No need to charge the battery; this battery tester is powered by the battery it is testing. The analog display pointer moves along a color-coded calibrated scale for quick identification of battery status: \"Good\" (green), \"Low\" (yellow) and \"Replace/Recharge\" (red). 【Convenient and Fast】: When the battery tester is connected to the battery being tested, it can quickly detect the battery's condition. 【Easy to Read】: The analog display needle moves to show the battery's charge level, making it easy to read. 【Wide Range of Use】: This battery tester is suitable for testing various types of household batteries: AA, AAA, C, D, 1.5V, 9V and button cell batteries. Due to manual measurement, please allow a measurement deviation of 1-3 cm. Due to different monitors and lighting effects, the actual color of the item may differ slightly from the color shown in the picture. Thank you!