Features: Professional 4 channel 18650 battery capacity tester, accurately measure battery capacity, internal resistance, voltages, and current with lab grade precise for reliabled lithium cell analysis and sorting. Portable 260g ABS construction combines laboratory grade durability with portability, featuring shock resistant housing and heat tolerance for stable operations in demanding environments. Essential for electronics engineers, battery manufacturers, and DIYer enthusiasts requiring efficient multi cell testing solution for battery pack assembly. Ideal for production line quality checks, laboratory research, or field maintenance tasks where simultaneous 4 cell testing capability dramatically accelerates workflow efficiency. Multi channel simultaneous testing design enables rapid batch analysis of 18650 cells, complete with clear parameter visualization for streamlined data driven battery management decisions. Specifications: Component: ABS Size: Approx.147x102mm/5.75x4.1inch Weight: about 260g Dimensions: as shown in the figure Attribute: 18650 lithium batteries capacity internal resistance test capacity divider Function: Capacity measurement | Internal resistance measurement; Package Includes: 1 Set 18650 Battery Capacity Tester note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.