Description: 【Product Features】: This 18650 Lithium Battery Capacity Tester and Internal Resistance Detector comes with a four way power automatic charging and discharging module, providing efficient and reliable performance for your battery testing needs. 【Material】: Battery true capacity meter made from durable PC Polycarbonate material, this tester is designed to withstand long term use while maintaining its quality and functionality. 【Compact Size】: This battery capacity tester with dimensions of 150x103x36mm, this compact device is easy to handle and convenient for storage or transport. 【Feaure】: The Lithium Battery Capacity Teste features a Type C port for easy connection to various devices, making it a versatile tool for all your battery testing requirements. 【Easy to Read】 : This battery tester module can display discharge capacity and discharge energy, easy to read. Specification: Material: PC Size Chart: 15cmx10.3cmx3.6cm/5.91inchx4.06inchx1.42inch Package Includes: 1 Lithium Battery Capacity Tester(Battery not included) Note: Please allow slightly errors due to manual measurement and different monitors.