Five questions: What battery? How much energy can you carry? How long can a 500-watt appliance work? What is the shell made of? What is the output port?
First question: What kind of battery? This is the essence of batteries. At present, ternary lithium battery is widely used in outdoor power supply, and the main model is 18650. Its main features are light weight, small volume, long cycle life and stable performance. Ternary lithium battery is still the dominant lithium battery industry. Mainstream enterprises in the world, such as Panasonic, Samsung, LG, Contemporary Ampere Technology Co., Ltd., Li Shen and BIC, all advocate ternary batteries. Many consumers are worried about the safety of ternary materials. Statistically, ternary lithium battery is still the most stable and reliable battery in the world. Because ternary lithium batteries have the widest application fields and the largest number, from hearing AIDS to mobile phones, from smart bracelets to electric cars, ternary lithium batteries have become an indispensable part. Due to the participation of many enterprises and huge investment in science and technology, the capacity and safety of ternary lithium batteries have made great progress in recent years.
Lead-acid batteries are too heavy, short in life and seriously polluted by production and recycling, so they are not used by manufacturers.
Lithium iron phosphate batteries are also very large. The biggest problem of iron phosphate battery is that the overall industrial supporting system is immature. Although it is safer than ternary materials in theory, the quality and price are not ideal. There are not many battery manufacturers that actually produce lithium ferrous phosphate in the world, and only BYD has done a better job.
2. How long can a 500-watt rice cooker last? This is the problem of capacity. At present, there are different nominal views on capacity. The standard view is how many watt-hours, that is, how many WHs. 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 WH = 1000 WH. When buying, be sure to confirm this problem with the seller. Generally used as a 220-volt outdoor power supply, if it is to be used outdoors, its capacity is 500WH~ 1000WH. If the capacity is larger, it will be heavier and not conducive to carrying. Since it is a question of capacity, it will involve the time of using electrical appliances. You can ask the seller like this. Take the outdoor power supply with the capacity of 1000 Wh as an example. If a person can work continuously for 100- 1 10 minutes, the ability is qualified. Because after all, when the voltage rises to 220 volts, there will definitely be some heat loss. Take a 500-watt electric pressure cooker as an example, it can cook five meals of rice.
The third question is, how much strength can you bring This involves the power and waveform of the inverter. At present, there are too many routines for individual sellers, which are not nominal continuous motivation and make consumers embarrassed. So when buying, be sure to ask clearly how much power the seller can bring.
There are generally two kinds of inverters for outdoor power supply, square wave and sine wave. Square wave can drive full-power resistive appliances such as rice cookers, electric pressure cookers, light bulbs and LED lamps, but if you drive inductive appliances, you have to make some discounts. For example, a 500-watt square wave inverter can only drive chargers and electric fans within 200 watts.
In contrast, sine wave outdoor power supply and commercial power supply have exactly the same waveform, both of which are sinusoidal curves. A 500-watt inverter can drive all appliances of 500 watts and below. Hand drills, electric fans and some electrical appliances are induction appliances. Another biggest advantage of sine wave is that there is no noise when using sound. But there is also a small disadvantage that the heat loss is slightly larger, that is, the utilization efficiency is lower than that of waves.
The fourth question, what kind of shell? It doesn't seem important, but it is. Outdoor power supply is different from ordinary appliances. It is necessary to boost the low-voltage DC12V to 220V AC. In this process, about 10% of heat energy will be wasted. In addition to using fans to dissipate heat, if aluminum alloy material is used, it can dissipate more heat and ensure safety. Outdoor power supply is generally used outdoors or in a car, and it is inevitable that it will bump, drop and squeeze, and even bump and crush in extreme cases. If you want to protect the lithium battery cells inside, you must have a solid shell. The firmness and lightness of aluminum alloy material has become the best choice.
Fifth, what are the output ports? A multifunctional outdoor power supply should have the following outlets: 220V AC outlet, 12V lighting outlet, 5VUSB mobile phone charging port, and 12V high-current emergency starting port.
Ok, five simple questions, and the seller will immediately look at you with new eyes. I dare not play tricks in front of you.
While enjoying the natural beauty, relax yourself and walk all the way. I hope you have a good trip.
This paper is helpful for outdoor power supply. If you need to reprint, you need our consent.