Portable multi-functional solar power generation kits is widely used in outdoor sports, rural breeding and other occasions. It is also widely used in some power shortage countries in the Middle East and Africa. Due to its convenient operation and simple operation, energy-saving and environmental protection are enjoyed by everyone.

But solar power system is really ready to use, no electricity into the sun drying it? The answer is no, to know that solar power generation system with the solar panel power, built-in battery capacity, and the use of load power have a great relationship. The following Olys produced SP7 small solar power system to do some analysis

SP7 Configuration: Solar Panel: 10W / 17.5V LED Light: 3W / 12V, 2PCS

Built-in battery: 7AH / 12V

Total battery capacity = 12V * 7AH = 84WH.

When the battery is full, use a 3W lamp. Use time = 84WH / 3W = 28H

Solar panel charging current = 10W / 17.5V = 0.57A, southern average sunshine time 3-4 hours.

Charging AH number = 0.57 * 4 = 2.28AH. Charging WH number = 2.28AH * 12 = 27.3WH.

The same day charging the battery lighting time = 27.3 / 3 = 9h.

Based on the above calculation results, it can be seen that in order to maintain 4-5 hours of lighting per day, it is necessary to ensure that small systems are recharged every day. If two days of rainy days are encountered, the solar power system will consume electricity. If you need to re-charge the battery, you need to charge the battery for at least 3 consecutive days. So in the process of using solar power generation system, it is suggested that 1. try to save electricity, do not waste. 2. At any time to keep the solar panel in charge, not during the day, it must also charge the small system, so that the system is at full power at any time.

Shenzhen Olys Technology Co., Ltd. specializes in solar controller research and development, production and sales. Already has 12 years of rich experience, customers all over the world. Is a trusted supplier of photovoltaic systems!

The above article provided by Shenzhen Olys Technology Co., Ltd.

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