Battery Series The output voltage and current can be controlled and adjusted by variable resistors respectively, so it provides more convenience and accuracy in the adjustment of voltage and current. The panel also provides high-precision three-window digital tube display of voltage, current and power, so that users can intuitively see the current use status and various parameters of the machine. Compare to normal dc power supply, the battery series is very helpful on battery charging, it's can be automatically cut-off output when fulling charge, normal power supply can achieve this function. 1.Small size, light weight and high power density. 2.Constant pressure and constant current switch automatically. 3.4 digitals display of voltage, current and power, high precision and features of voltage stabilization, current limiting, and simple operation. 4.Adjustable Output Voltage & Current: output voltage and output current can be continuously. 5.Adjusted between 0 and nominal value with fine regulating and coarse regulating. 6.It has over voltage protection(OVP), over current protection(OCP), over temperature protection 7.Temperature controlled fan cooling, low noise, long life. 8.Dual voltage input and convenient choice. 9.Output Voltage ranges from 0 to rating voltage with continuous adjustment . 10.Output current ranges from 0 to rating current with continuous adjustment 11. Stable current and voltage output. 12. USB-A Port output 5V2A USB-C Port output 5V2A OCP and Battery mode and Output Button Encoder Adjustment knob With buzzer Positive and negative polarity reverse protection Technical parameters: Input voltage:AC 110V 60HZ Output voltage:0 ~ 30V Output current:0 ~ 10A Voltage resolution:10mV Current resolution:1mA Output Voltage ranges from 0 to rating voltage with continuous adjustment . Voltage regulation : Line regulation<5mV. Load regulation<5mV. Recovery time<500us(50% Load change, minimum load 0.5A) Ripple & Noise<5m Vrms, 100m Vp-p Temperature coefficient<100p pm/C. Output current ranges from 0 to rating current with continuous adjustment Current regulation line regulation<3mA. load regulation<3mA. Indicator Meter Voltage display precision: +-(0.5% of rdg + 2 digits). Current display precision: +-(0.5% of rdg + 2 digits). Operation Temperature & Humidity : 0 ~ 40 C, RH<80%. Storage Temperature & Humidity : -10 ~ 70 C, RH<70%. Application areas: . Car DVD, Car Audio. . Battery charging, aging products, such as resistors, capacitors, relays, DC motors, LED and the like. .Mobile phone repair .Computer/Laptop repair .Appliance repair .PCB board power-on test .LED lamp power-on test .Product ageing test .PCB board short circuit burner test .Charging the drone .Chemical electroplating and electrolysis .Anodic oxidation .Charging the lead-acid battery .Charging lithium battery .DIY electronic products test .Electronic loading test .Laboratory, factory, repair power supply. .Other DC power supply all the needs of the occasion.