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Henan LED street lights, Zhengzhou sign poles, Zhengzhou solar street lights, octagonal poles

How to choose components for solar cells

Category: Company News

Feb 28,2022

Operating Voltage and Current Requirements Confirm the operating voltage and current required by your system. For equipment powered directly, calculate the total system requirements.

Operating voltage and current requirements

Confirm the operating voltage and current required by your system. For equipment powered directly, calculate the total system requirements.

 

 

First, select the operating voltage required for the solar panel. Generally, solar panels with an operating voltage of 3 to 3.6 volts will charge two AA 1.2-volt rechargeable batteries. A solar panel with an operating voltage of 7.2 volts will charge five 1.2-volt rechargeable batteries or one 6-volt gel or lead-acid battery. A solar panel with an operating voltage of 15.4 volts will charge one 12-volt gel or lead-acid battery.

Do not charge alkaline batteries. Alkaline batteries are not rechargeable.

You can contact your battery manufacturer to confirm that the batteries you consider suitable are fully compatible with the solar panel.

Battery charging: Current

Choose a solar panel with the appropriate operating current to charge your equipment. In general, do not exceed an additional 10% of the capacity for rechargeable batteries. For example, a 700mA-hr battery can be safely charged with solar power at an operating current of 70mA.

Adding voltage and current circuit connection methods

You can connect solar panels in parallel or in series to achieve higher voltage (series) or higher current (parallel). However, limit yourself to using similar modules: for example, two MP3-37 models or two MP7.2-75 models, but do not mix them. Connecting two similar modules in parallel will provide double the current, while connecting three similar modules in series will output triple the voltage.

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Installation acceptance methods for solar street light poles

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