Valve control type sealed lead acid battery in China for over ten years, since it has small volume, light weight, low self-discharge, long service life, saving investment, easy installation, safe and reliable, easy to use and less maintenance not excessive acid mist, no corrosion to the environment, no
valve control type sealed lead acid battery in China for over ten years, since it has small volume, light weight, low self-discharge, long service life, saving investment, easy installation, safe and reliable, easy to use and less maintenance not excessive acid mist, no corrosion, no pollution to the environment and other excellent features, and can realize the modernization of the unattended and microcomputer monitoring management mode; Thus in photoelectric lamps, photovoltaic engineering is widely used. But to correctly understand the meaning of 'maintenance', ensure the safety of the system is reliable. In the process of use, the valve control type lead acid battery maintenance need to establish and implement accurate charging and discharging system, to make the battery to achieve optimal performance and the longest service life. At home and abroad a large number of research results show that the charge and discharge method determines the battery using life, some is not so much a battery using bad, rather than charging ways not damaged. Solar lamps and lanterns is considered from the view of economy and reliability, with annual average sunshine time commonly design configuration of lamps and lanterns, and the actual work, often by the controller control function to set a working hours, 6 hours, 8 hours, 1 o hours, etc. , thus caused the year work every day are all the same time, the daily power consumption, but solar lamps and lanterns is a work with the sun, and solar radiation varies with different seasons there is a big difference, namely each lamps and lanterns, Solar cell components must be) Each season average daily output is very different. Zhongshan peak annual average sunshine time of about 4. 44 hours, spring: 4. 43 hours, summer: 6. 17 inch, autumn small day: 4. 47 hours, winter: 2. 65 small day '. Because of electricity a day on average is a real number is proportional to the peak and average sunshine, so is the spring and autumn capacity and power consumption causing a waste, so in the summer and the winter is woefully inadequate, LED street light, it is easy to cause the battery discharge, affect battery life. For self-discharge, system matching, and cost factor is very economic and practical. So the control load time can yet be regarded as a kind of solution, according to sun yat-sen peak sunshine time available: summer peak average sunshine time than peak annual average sunshine time than average winter peak sunshine time = 6. '. Then you. 65 = 7:5:3, work every day is designed according to the annual peak sunshine time 1 o hours of solar lamps and lanterns is according to 7:5:3 this ratio can be concluded that summer the most allowed to work 14 hours a day, winter (allowed to work 6 hours at most Note: not considering the influence of different season temperature) 。 In view of this, in order to make the battery discharge in winter not, adjustable load working time is less than or equal to 6 hours.