Features: Can display current A voltage V power W capacity Ah and discharge time; Have a complete protection mechanism; Automatic calculation of discharge capacity and discharge time; Set the maximum discharge capacity (OAH) and maximum discharge time (OHP); (Realize unattended power aging test) Intelligent temperature control fan, when the power is greater than 10W or the temperature is greater than 40℃, the fan will automatically start; Rotary encoder potentiometer can accurately adjust the current to 0.01A, and can lock the current to prevent misoperation; Data group function: you can choose whether to add the first-level capacity value and running time; It has a powerful serial communication function. Specification: Rated power supply voltage: DC 5 -30V (anti-reverse connection protection, reverse connection does not burn.) Rated load voltage: DC 1.5 -25V (anti-reverse connection protection, reverse connection does not burn.) Constant voltage accuracy: ±(1%+3 words) Voltage accuracy: ±(0.5%+1 word) Model: FZ25/FZ35 (optional) Rated load current: 0.00~4.00A, 0.00~5.00A Discharge power: 25W/35W (optional) Dimensions: 4.3x5.5x7. 9 cm/1.69x2.17x3.11 inches Colour: Black The package contains: 1 x electronic load module