1. Number of batteries supported: 1-4 cells 2. Cylindrical battery supports battery specifications: AAA, AA, 10440, 10500, 12500, 13500, 14500, 14650, 16650, 17650, 17670, 18650, 18700, 20650, 20700, 21700, 22650, 26650, 26700 3. Supported battery types: Li-lon, LiFe, LiHv, NiMH, NiZn, Eneloop 4. Working voltage range: 5-12V (supports QC, PD protocols) 5. Charging current range: 0.1-3.0A (horizontal), 0.1-1.5A (vertical) 6. Discharge current range: 0.1-1.5A (horizontal), 0.1-1.0A (vertical) 7. Operation modes: charge, discharge, store, destroy, cycle, activate, analyze 8. Display: 320×240 IPS LCD 9. Buzzer: multi-tone 10. Temperature sensor: 6 internal 11. Voltage measurement accuracy: 10mV 12. Current measurement accuracy: 10mA 13. Standby drain: less than 0.05mA/battery 14. External port: USB power input (Type-C) 15. Firmware upgrade: supports vertical physical reverse connection protection and horizontal hardware reverse connection protection 16. USB Type-C, 36W input power, 5~12V input voltage, supports QC2.0/3.0 and PD fast charging protocols, charging is one step faster 17. Supports 5V/1A input, laptop USB port can also be used as power supply 18. 2.4-inch LCD low-power IPS sunlight screen, viewing angle up to 178 degrees, three-level backlight brightness adjustment, still clear under the sun 19. Six channels work independently. Each channel can be set to different working modes. It is compatible with up to 19 battery types. 20. Supports charging of 4 AA batteries or 4 AAA batteries at the same time. The horizontal slot size can support up to 26700 batteries. 21. Real-time monitoring of charging and discharging status, battery type, charging percentage, charged amount, charging time, battery internal resistance, real-time temperature, current voltage and current, and power change curve 22. According to the current status of the battery, the charging parameters are adjusted in real time, while providing multiple safety protections to extend the battery life with more reasonable charging and discharging. 23. Can connect to computer via USB-C interface to upgrade firmware 24. Dimensions: 92x120x34mm