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  • Delight Eco Energy Supplies Co., Ltd.

  •  [Jiangsu,China]
  • Business Type:Manufacturer
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 Delight Eco Energy Supplies Co., Ltd.

Delight Eco Energy Supplies Co., Ltd.

Home > News > Solar Street Light Battery Calculation

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Solar Street Light Battery Calculation

2019-08-13

The street light Battery is the application of the battery in the wind solar hybrid street lamp. The Solar Street Light battery is used to store the electric energy generated by the solar cell module, Wind Turbine, and another new energy street lamp when the illumination is insufficient or illuminated at night.


Currently used solar street light batteries are:
Sealed lead-acid batteries, ordinary lead-acid batteries, gel batteries, lithium-ion batteries, and alkaline nickel-cadmium batteries, etc., the voltage is generally 12V or 24V.
However, the most commonly used are sealed lead-acid batteries, which are widely used because of their maintenance-free and high environmental protection.

For solar street light batteries, there should be enough cycles of charge and discharge, low self-discharge rate, long service life, strong deep discharge capability, high charging efficiency, and low maintenance or maintenance-free.


The solar street lamp battery configuration calculation method is as follows:
One: First calculate the current:
Such as a 12V battery system;
2 lamps of 30W, a total of 60 watts.

Current = 60W ÷ 12V = 5A


Two: Calculate the battery capacity requirements:
For example, the cumulative lighting time of street lamps needs to be 7 hours (h) at full load;
(If it is open at 8:00 in the evening, 1 in the night at 11:30, 2 in the morning at 4:30, and closed at 5:30 in the morning)
Need to meet the lighting needs of 5 days in continuous rainy days. (5 days plus one night before the rainy days, 6 days)

Battery = 5A × 7h × (5 + 1) days = 5A × 42h = 210AH


In addition, in order to prevent overcharging and over-discharging of the battery, the battery is generally charged to about 90%; the remaining discharge is about 20%.

So 210AH is only about 70% of the real standard in the application.

wind solar hybrid street light manufacturer delight eco energy

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