Features: Double Channel 18650 Battery Capacity Tester efficiently measures two lithium batteries simultaneously with autonomous circuits, featuring built in resistance testing, charges/discharge cycles, and real time electric /current tracking for professional analysis. Equipped with auto saved historical data storage, LCD interfaces, and multi mode visualization (electric graphs, current charts), this PCB engineered device ensures precise battery performances improves without data loss during power interruptions. Ideal for electronics repair technicians, enthusiasts, and battery manufacturers requiring stable double channel testing solution for 18650 cells in workshops, labs, or home based projects. Optimize battery maintenance workflows by monitoring lithium packs for drones, power tools, or solar storage systems through simultaneous capacity checks and resistance comparisons. simplify your diagnostics with color coded terminals, compact ergonomic design, and fast access test records – a must have 18650 battery capacity tester and double channel battery analyzers for data driven energy management. Specifications: Component : PCB Size: about 29x100x100mm/1.14x3.94x3.94inch Battery: included Package Includes: 1xBattery Capacity Tester note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.