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How to choose an outdoor portable power station supply?

Writer: admin Time:2021-05-20 10:00 Browse:

How to choose a satisfactory 220V outdoor portable power station supply?
Five questions: What battery? How much power can an electrical appliance carry? How long can a 500-watt electrical appliance work? What material shell? What output ports do they have?
 
The first question: what battery? This is the nature of the battery. Today's outdoor portable power station supplies generally use lithium batteries of ternary materials, and the 18650 model is the main feature. The main features are: light weight, small size, long cycle life, and stable performance. The ternary material lithium battery is still the dominant lithium battery industry. The mainstream companies in the world, such as Panasonic, Samsung, LG, CATL, Lishen, BAK, etc., all mainly promote batteries made of ternary materials. Many consumers worry about the safety of ternary materials. If you look at it from a statistical point of view, the ternary material lithium battery is still the most stable and reliable battery in the world. Because the ternary material lithium battery is the most widely used and the most used, from hearing aids to mobile phones, from smart bracelets to electric vehicles, ternary material lithium batteries have become an indispensable component. Due to the participation of many companies and huge investment in science and technology, the capacity and safety of ternary material lithium batteries have been greatly improved in recent years. Lead-acid batteries are too heavy, have a short lifespan, and cause serious pollution in production and recycling. Few manufacturers can use them for outdoor power supplies. . LiFePO4 Battery are also bulky. The biggest problem with iron phosphate batteries is that the overall industrial supporting system is not mature. Although theoretically safer than ternary materials, the quality and price are not ideal. There are not many battery manufacturers that actually produce LiFePO4 Battery in the world, only BYD Well done.
 
Second question, how long can a 500-watt rice cooker last? This is the problem of capacity. Now there are different opinions about the nominal capacity. The standard one is how many watt-hours, that is, how much WH. There are also tens of thousands of milliamps, but this statement is very one-sided. The capacity of the battery is: average discharge voltage × discharge current × time. 1 kWh = 1000 watt-hour = 1000WH. When buying, you must confirm this issue with the seller. Generally used as a 220 volt outdoor power supply, if you want to be able to stand it outdoors, the capacity is 500WH~1000WH. No matter how large the capacity is, it will be more bulky and not conducive to portability. Since it is a problem of capacity, it involves the time of using electrical appliances. You can ask the seller like this. Take an outdoor power supply with a capacity of 1000WH as an example. If a 500W electrical appliance can work continuously for 100-110 minutes, then the capacity is qualified. Because after all, the boost to 220 volts requires a certain amount of heat loss. Take a 500-watt electric pressure cooker as an example, it can make 5 meals of rice.
 
The third question is how much power can be used in electrical appliances? This is the AC output power of the outdoor portable power station supply, which involves the power and waveform of the inverter. Now individual sellers have too many routines and do not claim that it is actually continuous power, which makes consumers very difficult. Therefore, when buying, be sure to ask the seller clearly how much power the appliance can bring. There are generally two types of inverters for outdoor power supplies, namely square wave and sine wave. The square wave can drive electrical resistance appliances with sufficient power, such as rice cookers, electric pressure cookers, light bulbs, LED lights, such as outdoor power supplies with a nominal output of 500 watts, and square waves can drive 500 watt rice cookers, 500 watts Light bulbs etc. But if you have inductance electrical appliances, you have to give some discount. If the output is 500 watts, it can only drive the charger and electric fan within 200 watts. In contrast, the waveform of a sine wave outdoor power supply is exactly the same as that of the mains, which is a sine curve. A nominal outdoor power supply of 500 watts should drive all electrical appliances of 500 watts and below. Hand drills, electric fans, and some electrical appliances are all inductive appliances. One of the biggest advantages of sine wave is that there is no noise when using audio. But there is also a small disadvantage that the heat loss is slightly larger, that is, the utilization efficiency is lower than that of the square wave. The main points of anti-flicker, the maximum power and instantaneous power marked on the Internet have no meaning to ordinary consumers. What you need is continuous output power. Fourth question, what kind of shell? This may seem unimportant, but it is actually very important. Outdoor power supplies are different from ordinary electrical appliances. It is necessary to boost the low-voltage 12V DC to 220V AC. In this process, about 10% of the heat energy is wasted. In addition to the use of fans for heat dissipation, if aluminum alloy materials are used, more heat can be dissipated to ensure the safety of lithium batteries. Outdoor power supplies are generally used outdoors or in vehicles, and it is inevitable that they will be bumped, dropped, squeezed, and even more extreme situations will cause impact and crushing. If you want to protect the lithium battery cells inside, you must have a sturdy and sturdy shell. Static electricity will inevitably be generated during travel. Static electricity will pose a fatal threat to the circuits in the interior of the outdoor power supply. Metal shells are naturally static. In summary, the aluminum alloy shell has the characteristics of heat dissipation, sturdiness, anti-static properties and portability, making it the most ideal choice.
 
The fifth question is what output ports are there. A multifunctional outdoor power supply should have the following output ports: 220V AC output port, this is the most important. In addition, it is best to have a 12V lighting output port, a 5VUSB mobile phone charging port, and a 12V high-current emergency start port. Considering the outdoor environment load, the output terminal can be gold-plated or silver-plated, then it will be more corrosion-resistant.
 
Well, with five simple questions, the seller will immediately look at you with admiration. I dare not play any tricks in front of you. Prepare carefully, and you will choose a satisfactory outdoor power supply.