_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ 4 Channel Type-C LCD Display 18650 Battery Capacity Tester Battery Power Detector Module with Charging Function Cooling Fan _x000D_ Feature: _x000D_ 1. High-precision Testing Capabilities: The Four-channel 18650 Battery Tester can measure both capacity and internal resistance with industry-leading accuracy, thanks to its direct-current two-wire testing method. _x000D_ 2. Multiple Charging and Discharging Options: The tester supports single-channel charging and discharging, as well as automatic mode that allows up to nine cycles of charge and discharge. _x000D_ 3. Independent Channel Operation: Each channel is independently controlled and run, ensuring accurate and reliable readings without interference. _x000D_ 4. Wide Compatibility: The tester's compact battery holder is designed to fit flat-top 18650 batteries, and it also supports charging for lithium iron phosphate batteries. _x000D_ 5. Intelligent Cooling System: Equipped with a heat dissipation fan, this tester ensures stable and safe operation while preventing overheating and protecting your investment. _x000D_ _x000D_ _x000D_ Specification: _x000D_ Origin: Mainland China _x000D_ Working voltage: DC5V _x000D_ Applicable batteries: Suitable for batteries that meet the requirements of stopping discharge voltage of 2.5-3.5V, starting from 2.8V to 4.2V and fully charged _x000D_ Power supply interface: Two Type-C power supply interfaces (power supply and power cord provided by oneself) _x000D_ System language: English/Chinese switchable _x000D_ Test quantity: 4-way charging and discharging measurement _x000D_ Internal resistance measurement: supported, using DC two wire method to test internal resistance _x000D_ Charging function: Support, automatic cut-off charging when fully charged (lithium iron phosphate battery charging is not supported) _x000D_ Discharge function: Supported, automatically stops when conditions are met, and the discharge current is not adjustable _x000D_ Automatic charging and discharging: Yes, the battery is fully charged at the end of the automatic mode (lithium iron phosphate battery charging is not supported) _x000D_ Cyclic charging and discharging: Supported, adjustable for 1-9 cycles (only supported in automatic mode) _x000D_ Status prompt: Supported _x000D_ Heat dissipation method: Fan active heat dissipation _x000D_ Overheat protection: Supported _x000D_ Stop discharge voltage: 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, a total of 11 adjustable levels _x000D_ Discharge current: Maximum current of about 1A, not adjustable, does not support independent modification _x000D_ Charging voltage: Controlled by a dedicated battery charging chip, with a maximum charge of about 1A and a full charge voltage of 4.2V _x000D_ Power off save: Only save the set parameters, not the measurement data _x000D_ Product size: About 150x103x36mm/5.90x4.05x1.41inch _x000D_ Product weight: 200g (net weight) _x000D_ Switching between Chinese and English interfaces: _x000D_ Press and hold the "Menu/M" button to power on, release the button after the screen lights up, and wait for 10 seconds after turning on the power to turn off _x000D_ Power on again and complete the switch. _x000D_ Measure internal resistance: _x000D_ The product uses the DC 2-wire method to test the internal resistance of the battery. When the battery is fully charged, the numerical accuracy is high. The test results are used for reference comparison between the same batch of tested batteries. For those with high internal resistance accuracy requirements, please use a professional 4-wire internal resistance instrument for testing. _x000D_ Test method: _x000D_ Wait a few seconds after installing the battery, read the battery data, and the battery voltage and internal resistance parameters will be displayed. There may be a delay in loading and unloading data during the battery loading and unloading process. Please check after the data stabilizes _x000D_ _x000D_ _x000D_ Note: _x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x000D_ Please allow 1-2cm measuring deviation due to manual