ZK-SJ20 300W 20A High Power Step Up Down Power Supply

ZK-SJ20 300W 20A High Power Step Up Down Power Supply Module Voltmeter Solar MPPT Adjustable Voltage Regulator 7-80V To 1.4-79V

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Our shop sells the most popular 3C consumer electronics products,such as mobile phone accessories,computer accessories,game peripherals,smart wearables,and follow the most popular fashion trends. If you like our products,please follow us,become our follower and fan.We will provide you with the most popular products to satisfy your fashion shopping experience.Type : OtherNumber of sockets : Notis_customized : YesUsage : Voltage RegulatorModel Number : DC-DC MPPT Boost Buck Converter ModuleCurrent Type : DCPhase : automatic Step Up Down Power Supply boardBrand Name : AideepenOrigin : Mainland ChinaCertification : noneFeatures：1. Use high-quality materials for durability2. All screwdriver free potentiometer, can be directly manual adjustment3. Chip to enhance heat dissipation, reliable and stable, large power4.MPPT adjust voltage real-time display, at a glance5. Wide range of use, solar charging, battery lithium battery charging, LEDConstant current drive, regulated voltage power supply:Input voltage range: DC7-80VOutput voltage range: DC1.4-79VVoltage display range: 1.40-80.00V (accuracy +0.1V or so)Output current adjustment range: 0-20ACurrent display range: 0.00A-20.00A (accuracy +0.03A or so)Adjusting knob: MPPT voltage regulation, output voltage regulation, outputCurrent limiting regulationMPPT function: YesAnti-backflow: battery backflow does not burn, the sun is insufficient without charging current,There will be 0.5-40mA reverse current, it is recommended to connect the diode when charging.Constant current (limited current) : YesSuper power protection: 300W, the output will be turned off if the power exceeds 0PPSize: 108x64x48mmSolar cell charging steps:1. Measure the no-load voltage of the solar panel (full sunlight) and calculate MPPT voltage =0.75* no-load voltage, or directly see the manufacturer panel Vmp parameter value.Pay attention to the positive and negative terminals do not connect the opposite.2. The solar panel is connected to the power supply module. Switch to the MPPT voltage display interface and adjust itSection MPPT potentiometer, the value is adjusted to Vmp voltage.3. Rotate CV potentiometer to adjust the output voltage (the size is the floating charge of the charged batteryPressure).4 Short output positive and negative ends, rotate CC potentiometer, adjust the limit current size (largeIs the allowable charging current of the charged battery).If the solar panel power is too low, the MPPT light will light up when the short circuit, in order to protectWith constant input voltage, the output current will be limited, the current can only be adjusted down, MPPTIt's the current you see when the lights go out that counts.It is recommended to adjust the current when the sun is full or the constant voltage source is used as the input.5. Connect the battery to charge (note that the positive and negative terminals are not connected in reverse). MPPT can be adjusted appropriatelyPotentiometer makes the module output at the maximum power point all the time.It is recommended to connect the diode to prevent backflow thoroughly.Notes and Reminders:1. Input positive and negative terminals can not be reversed, otherwise it will burn;2. When the output terminal is connected to the battery, do not connect the positive and negative terminals inversely; otherwise, the battery will be burned.3. The maximum output current 20A is limited to the time when the pressure difference between the input voltage and the output voltage is small.And the output power does not exceed 300W.The larger the voltage difference between input and output, the lower the conversion efficiency and the more serious the heating.If the heat is too serious, please reduce the power use, or add a 5V fan (reservedPort, fan current less than 300mA) auxiliary heat dissipation.4 MPPT voltage - generally set to solar panel open circuit voltage 0.75 times, alsoYou can see the nameplate or consult the solar panel manufacturer Vmp voltage value, Vmp voltageThe value is the MPPT voltage that we want to set. The display screen can display the setting voltage,Adjust at a glance, very convenient.5. Output current limit (CC) value, - is the allowable charging current of the rechargeable battery, currentThe setting method is: the output end directly with a wire short circuit, looking at the current display valueAdjust CC potentiometer, display value is the current limit value (maximum output current value).Package List:Step up down voltage power supply module *1