4 Channel Battery Capacity Tester, Automatic Cyclic Charging Discharging Internal Resistance Meter, DC5V Li - ion Battery Analyzer with 1.77 Inch Display for 2.8-4.2V

Item Type: Battery Capacity TesterMaterial: PCBWorking Voltage: DC5VApplicable Batteries: Suitable for all batteries that meet the requirements of stopping discharge voltage of 2.5-3.5V and starting voltage of 2.8-4.2V (shipped without batteries)Power Supply Interface: 2 way Type C power supply interface (power supply and power cord not included)System Language: English Chinese switchableTest Quantity: 4 way charging and discharging measurementInternal Resistance Measurement: Supported, using DC two wire method to test internal resistanceCharging Function: Supported, automatically powered off after full charging (not support lithium iron battery charging)Discharge Function: Supported, automatically stops when conditions are met, and the discharge current is not adjustableAutomatic Charging and Discharging: Supported. At the end of automatic mode, the battery is fully chargedCyclic Charging and Discharging: Supported, adjustable for 1-9 cycles (only supported in automatic mode)Status Prompt: SupportedCooling Method: Fan active coolingOverheat Protection: SupportedStop Discharge Voltage: 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, adjustable in 11 gearsDischarge Current: The maximum current is around 1A, which is not adjustable and does not support independent transformationCharging Voltage: Controlled by a dedicated battery charging chip, with a maximum charging of about 1A and a full charging voltage of 4.2VPower Off Save: Only save the set parameters, not the measurement dataPackage List：1 x Battery Capacity Tester

• Automatic Cyclic Testing: This 4 channel battery capacity tester automatically performs up to 9 full cycles of charging and discharging to accurately assess real battery capacity and health, giving you reliable data on whether your Li-ion batteries are still performing at their best.
• Comprehensive Real-Time Display: The built-in 1.77 inch screen on this battery capacity tester shows internal resistance, voltage, current, capacity, and battery level simultaneously, so you can monitor every critical parameter without switching screens or guessing results.
• Versatile Battery Compatibility: Designed for common rechargeable batteries with a start voltage of 2.8-4.2V and stop discharge voltage of 2.5-3.5V, this battery capacity tester works with most standard Li-ion cells used in power tools, flashlights, drones, and household electronics.
• Integrated Safety and Cooling: Featuring active fan cooling and overheat protection, this battery capacity tester ensures safe operation during extended testing sessions, while the DC two-wire method delivers consistent internal resistance measurements without damaging your batteries.
• User-Friendly Operation: With preset automatic and manual modes, English/Chinese display options, and automatic data reset between tests, this 4 channel battery capacity tester simplifies complex diagnostics into a one-button process—ideal for hobbyists, technicians, and eco-conscious users recycling old batteries.