Enhance your battery testing accuracy and efficiency with this advanced Battery Capacity Tester, designed specifically for precise measurement of battery capacity and internal resistance. Engineered with an integrated 4-channel system, this tester simultaneously measures internal resistance and capacity for multiple batteries, making it an indispensable tool for battery maintenance, evaluation, and quality control. Key Features: · Dedicated 4-Channel Measurement: Supports independent testing of internal resistance and capacity for up to four batteries, providing detailed insights into battery health and performance. · Integrated Charging and Discharging System: Enables automatic charging and discharging cycles, supporting up to 9 complete cycles in automatic mode for comprehensive battery conditioning and testing. · Clear 1.77-Inch Display: Large screen showcases crucial data including internal resistance, capacity, voltage, current, and battery level, ensuring users can monitor testing parameters effortlessly. · Preset Automatic Modes: Offers multiple preset charging and discharging modes for quick and convenient operation, allowing users to select the desired testing mode immediately upon powering the device. · Automatic Data Reset: Capacity, energy, and time data are automatically cleared when the device is turned off or when switching modes, guaranteeing accurate and reliable results every time. · Wide Battery Compatibility: Supports all batteries with stopping discharge voltages between 2.5V to 3.5V and starting voltages of 2.8V to 4.2V, suitable for common battery types (batteries not included). · Dual Type-C Power Interface: Equipped with two Type-C ports for power supply, ensuring versatile connectivity (power supply and cords not included). · Advanced Testing Functions: Uses DC two-wire method for internal resistance measurement and supports automatic stop on full charge or discharge completion for safety and precision. · Cyclic Testing Flexibility: Allows adjustment of charging and discharging cycles from 1 to 9, providing customized battery cycle testing exclusively in automatic mode. · Active Cooling and Overheat Protection: Features a built-in fan for effective cooling and reliable overheat protection to maintain stable operation during prolonged use. · Adjustable Stop Discharge Voltage: Offers 11 gears of adjustable stop voltages ranging from 2.5V to 3.5V, catering to diverse battery specifications and safety requirements. · Stable Charging Current: Controlled by a dedicated battery charging chip with maximum current around 1A and full charging voltage capped at 4.2V for safe and efficient charging (does not support lithium iron phosphate battery charging). Specifications: · Material: PCB · Working Voltage: DC 5V · Test Quantity: 4-way charging and discharging measurement · Internal Resistance Measurement: Supported (DC two-wire method) · Charging: Supported, automatic power off after full charge · Discharging: Supported, automatic stop when conditions met, current ~1A (non-adjustable) · System Language: English and Chinese switchable · Cooling: Active fan cooling with overheat protection · Stop Discharge Voltage: Adjustable, 2.5V to 3.5V in 11 levels · Power Supply Interface: Dual Type-C (power supply not included) Package Includes: · 1 x Battery Capacity Tester This Battery Capacity Tester is a professional-grade device tailored for accurate, safe, and comprehensive battery performance measurement. Its multifaceted functions and user-friendly operation make it ideal for electronics enthusiasts, technicians, and professionals seeking reliable battery diagnostics and maintenance.