Solar battery charging requirements

by:Power Kingdom     2021-06-27
Tags: Related Searches: The capacity and life of solar batteries are affected by the charging voltage, ambient temperature and other parameters. Therefore, an important principle for using this type of battery is to use the correct charging method. The charging method depends on the use of the battery Status, while solar energy is recycled. The corresponding charging method is shown in the following table (C in the table is the rated capacity of the battery): Charging method application cycle use, pay special attention to constant voltage charging, charging voltage range 6V battery: 7.25-7.45V 12V electricity: 14.5 -14.9V initial supply current (A)<0.3C, best 0.1C1. A reasonable over-discharge protection voltage must be set: 6V battery: 5.4V-5.5V 12V battery: 10.8-11V 2. The depth of discharge (DOD) should not exceed 70% , The reasonable design of the photovoltaic system is 15-20%. The charging voltage in the above table refers to the ambient temperature of 25 ℃, when the ambient temperature changes greatly, the charging voltage is adjusted accordingly, the method is: Every time the ambient temperature rises 1℃, the charging voltage decreases by 0.003V/cell; ▪ For every 1℃ decrease in the ambient temperature, the charging voltage increases by 0.003V/cell; if the temperature changes more than 10℃ without correcting the float voltage, it may cause damage to the battery. It is best to use the battery to work in the range of 20-25℃ and install it in the air-conditioned room. Note: The rated voltage of the solar cell is 2V, the 8V battery is composed of 3 cells in series, and the 12V battery is composed of 6 cells in series. composition.
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