How can a solar panel charge a battery without using a controller?

Sunlight as the energy solar street lamps, solar energy during the day battery board for battery charging, the battery at night to power supply using light source, without complex and expensive pipeline laid, can be arbitrary adjust the layout of the lamps and lanterns, safety and energy saving no pollution, no manual work is stable and reliable operation, saving electricity free maintenance, solar street light for a loop at the same time, without having to worry about as ordinary street lamp line is broken and overall is not bright. Solar street light is a crystalline silicon solar battery power supply, valve control type sealed and maintenance-free battery, gel battery) to store electrical energy, super bright LED as light source, lamps and lanterns and controlled by the intelligent charging and discharging controller, is used to instead of the traditional public power lighting lamps. No laying of cables, without ac power supply, do not produce electricity; Use dc power supply and control; Has a good stability, long service life, high luminous efficiency, easy installation and maintenance, high safety performance, energy conservation, environmental protection, economic and practical advantages.

6 m solar street light

Solar street light is also called lead-acid battery maintenance free storage battery (Tianjin solar street lamp, south of Beijing can be), and colloid and maintenance-free battery (with lower temperatures, such as Shaanxi with solar street lamps, three places with).This is two kinds of main battery electrolyte material is different, is a colloid is a lead-acid. Different due to component leads to the two kinds of cells under the condition of low temperature and high temperature efficiency is different. Colloid and maintenance-free battery is more suitable for high temperature, cold areas, like north China lead-acid maintenance-free battery solution can play.

Then the life of the battery solar street lamps mainly is closely related to the depth of discharge. Such as solar street light discharge above 80%, and the battery charge and discharge times is more than 300 times, but if can be 60% charge and discharge frequency can reach 800 times, discharge depth is poor cycle count nearly three times as much as 20%, 40% and if the discharge depth charge and discharge times can reach 1500 times, why difference so much? Mainly lead to battery charging and discharging principle, specific principle of Baidu, please. And our solar street light spectrum electronic why 60% of the discharge depth? Mainly considering cost and battery's life made a * value is 60%.Such lead-acid maintenance-free battery can use 3-5 years, colloid and maintenance-free battery can use 7-8 years. I said may not be enough clear, please communicate more and talk more.

If for battery charging directly with solar panels, it must have the measures to prevent the battery current reflux (simpler method is to use one-way conductive properties of diode concatenated in the cable), or battery will be in the light weak electric current will flow phenomenon.

Second, by way of making solar panels in series, in parallel to the output voltage conforms to the battery charging voltage, for instance, a 12 v battery recharged after the voltage is about 14 v, so the output voltage of solar panels must meet 14 v can, otherwise the battery charging voltage, affecting the service life is.

Also, the charging current should be designed at about one over ten of the battery capacity, too little electricity charging time will be longer, but also should not be too big, will cause harm to the battery's electrode plate.

Finally, the output voltage of solar panels voltage can increase or decrease in the number of series, the electric current can be controlled by the number of parallel, choosing solar panels, had better be the same brand, same type, such consistency will be better.

Monomer solar cells cannot be used directly do the power. As a power source must be a number of monomer battery connected in series, in parallel and tightly encapsulated into components. Solar panel (also called solar battery components) is the core part of solar power systems, as well as the most important part of the solar system.

If for battery charging directly with solar panels, it must have the measures to prevent the battery current reflux (simpler method is to use one-way conductive properties of diode concatenated in the cable), or battery will be in the light weak electric current will flow phenomenon.

Second, by way of making solar panels in series, in parallel to the output voltage conforms to the battery charging voltage, for instance, a 12 v battery recharged after the voltage is about 14 v, so the output voltage of solar panels must meet 14 v can, otherwise the battery charging voltage, affecting the service life is.

Also, the charging current should be designed at about one over ten of the battery capacity, too little electricity charging time will be longer, but also should not be too big, will cause harm to the battery's electrode plate.

Finally, the output voltage of solar panels voltage can increase or decrease in the number of series, the electric current can be controlled by the number of parallel, choosing solar panels, had better be the same brand, same type, such consistency will be better.

The page contains the contents of the machine translation.