DualChannel Functionality The device supports two channels for capacity and internal resistance measurement, enabling simultaneous testing of two batteries without interference. Suitable for both hobbyists and professionals. Automatic Charging and Discharging An automatic mode enables up to nine charging and discharging cycles. Each channel operates independently to provide accurate measurements and reliable battery health evaluation. Smart Cooling System A built in fan provides active cooling to prevent overheating during extended tests, protecting your equipment while delivering precise results for capacity and health assessment. User Friendly Interface Simple controls for channel selection and mode adjustment. The interface supports both Chinese and English system languages, making it accessible to a wider audience. Key Benefits Efficient testing: test two batteries at once with no cross talk. Reliable results: independent channels ensure accurate measurements. Comprehensive health checks: up to nine automated charge and discharge cycles. Safe operation: active cooling maintains safe temperatures during long tests. Easy to use: bilingual interface and straightforward controls. Use Scenarios Scenario 1: In a hobby workshop, quickly screen two spare rechargeable cells to decide which to install in a device. Scenario 2: In a tech lab, evaluate battery packs for a product line by comparing capacity and internal resistance. Scenario 3: In a , routinely screen multiple batteries to identify degradation and inform replacement decisions.