DK1500 portable power station is a device intergrating several electrical items. It is with high quality ternary lithium battery cells, excellent battery management system (BMS), efficient inverter circuit for DC/AC transfer. It is suitable for indoor and outdoor, and it is used as backup power for house, office, camping and so on. You can charge it with mains power or solar power, adaptor is not required. When you are charging it with mains power, it will be 98% full in 4.5H. It can provide constant 220V/1500W AC output , also it provide 5V, 12V,15V,20V DC output and 15W wireless output. It is widely used in different situations, the life span is long and it is very with advanced power management system. Application area 1)Backup power for outdoor, can connect phone, i-pad, laptop and so on. 2)Used as a power for outdoor photography, outdoor riding, TV recording and lighting. 3)Used as an emergency power for mine ,oil exploration and so on. 4)Used as an Emergency power for field maintenance in telecommunication department,and emergency supply. 5)Emergency power for medical equipment and micro emergency facility. 6)Working temperature -10℃~45℃,Storage ambient temperature -20℃~60℃,Environment humidity 60±20%RH, No condensation, Altitude≤2000M,Fan cooling.1)High capacity, high power, Built-in lithium battery,Long standby time,High conversion efficiency ,Portable. 2)Pure sine wave output,adapt to various loads. Resistive load with 100% rated power, capacitive load with 65% rated power, inductive load with 60% rated power, etc. 3)UPS emergency transfer, transfer time is less than 20ms; 4)Large screen display function; 5)Built-in high-power fast charger; 6)Protection:Input under voltage, output overvoltage, output under voltage, overload, short circuit, over temperature, over current.What is your terms of payment? A: Alibaba online fast payment, T/T or L/C Do you test all your chargers before shipping? A: All major components are tested before assembly and each charger is fully tested before shipped Can I order some samples? How long? A: Yes, and usually 7-10 days to production and 7-10 days to express. How long to fully charge a car? A: To know how long to charge a car, you need to know the OBC(on board charger) power of the car, the car battery capacity, the charger power. The hours to fully charge a car =battery kw.h/obc or charger power the lower one. For e.g, the battery is 40kw.h, obc is 7kw, charger is 22kw, the 40/7=5.7hours. If the obc is 22kw, then 40/22=1.8hours. Are you Trading Company or manufacturer? A: We are professional EV charger manufacturer. 1. Charging 1)You can connect the mains power to charge the product. Also you can connect the solar panel to charge the product. The LCD display panel will blink incrementally from left to right. When all the 10 steps are green and the battery percentage is 100%, it means that the product is fully charged. 2) During the charging, the charging voltage should be within the input voltage range, otherwise it will cause overvoltage protection or mains trip. 2. Frequency conversion When the AC is off, hold down the "POWER" button and the AC button for 3 seconds to automatically switch to 50Hz or 60Hz. The normal factory setting is 60Hz for the Japanese/American and 50Hz for the Chinese/European. 3. Product standby and shutdown 1) When all output DC/AC/USB/ wireless charging is off, the display will go into hibernation mode for 50 seconds, and automatically shuts down within 1 minute, or press "POWER" to shut down. 2) If the output AC/DC/USB/ wireless charger are all turned on or one of them is turned on, the display will enter hibernation mode within 50 seconds, and the display will enter the steady state and will not automatically shut down. Click the "POWER" button or the indicator button to turn on, and press the "POWER" button for 3 seconds to turn off.