18650 rechargeable battery lithium 3.7v 3500mah

　　What are the advantages of photovoltaic cells and what are their application areas?

　　Photovoltaic cells have no danger of exhaustion, are safe and reliable, have no noise, no pollution, short construction period, will not be affected by the environment and region, are easily accepted, etc.; in addition, the application areas of photovoltaic cells are users’ solar energy and household lighting power supplies. Next, I will introduce the details to you.

　　1. Advantages of photovoltaic cells

　　1. No risk of depletion;

　　2. Safe and reliable, no noise, no pollution emissions, absolutely clean (no pollution);

　　3. It is not restricted by the geographical distribution of resources and can take advantage of building roofs; for example, areas without electricity and areas with complex terrain;

　　4. It can generate power on site without consuming fuel and erecting transmission lines;

　　5. High energy quality;

　　6. Easily accepted by users emotionally;

　　7. The construction period is short and the time it takes to obtain energy is short.

　　2. Application fields of photovoltaic cells

　　1. User solar power supply

　　Small power supplies ranging from 10-100W are used in remote areas without electricity, such as plateaus, islands, pastoral areas, border posts and other military and civilian life needs, such as lighting, televisions, radios, etc.

　　2. Transportation field

　　Such as navigation beacon lights, traffic/railway signal lights, traffic warning/sign lights, street lights, high-altitude obstacle lights, highway/railway wireless phone booths, unattended road shift power supply, etc.

　　3. Communication/communication field

　　Solar unattended microwave relay station, optical cable maintenance station, broadcast/communication/paging power supply system; rural carrier telephone photovoltaic system, small communication machine, soldier GPS power supply, etc.

　　4. Petroleum, ocean, and meteorological fields

　　Petroleum pipelines and reservoir gate cathodic protection solar power systems, oil drilling platform life and emergency power supplies, ocean detection equipment, meteorological/hydrological observation equipment, etc.

　　5. Home lighting power supply

　　Such as garden lights, street lights, portable lights, camping lights, mountaineering lights, fishing lights, black light lights, rubber tapping lights, energy-saving lamps, etc.

　　6. Photovoltaic power station

　　10KW-50MW independent photovoltaic power stations, wind and solar (diesel) complementary power stations, various large parking plant charging stations, etc.

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