Solar street lamp battery is the use of battery in the solar street lamp, the role of solar street lamp battery is to store the electric energy generated by the solar cell module during the day, when the light is insufficient or the night lighting supply a new energy street lamp
At present, solar street lamp batteries are adopted:
Sealed lead-acid battery, individual lead-acid battery, colloidal battery, three lithium battery with lithium iron phosphate battery, etc., the voltage is 12V or 24V individually. LED street lamp it is a kind of efficient solid state light source based on semiconductor PN junction formed with weak electric energy can emit light, in a certain forward bias voltage and injection current, injected into the hole in the P region and injected into the N region of electrons in the diffusion to the active region after radiation compound and emit photons, the electric energy directly into light energy.
It is a solid cold light source, with environmental protection, no pollution, less power consumption, high light efficiency, long life and other characteristics, therefore, LED street lighting will become the best choice for energy-saving transformation.
But the most commonly used is sealed lead-acid battery, colloidal battery and lithium battery, this is because they are maintenance-free, with long service life is widely used. The wiring on the back of the solar panel is reverse buckle design, which can be gently pried open with a screwdriver. The wiring of the solar panel (red cap is connected to the positive pole line, black cap is connected to the negative pole line) corresponding to the positive and negative pole line separated from the black cap of the lithium integrated battery, and the wiring should be wrapped with electrical tape.
LED street lamp it is a kind of efficient solid state light source based on semiconductor PN junction formed with weak electric energy can emit light, in a certain forward bias voltage and injection current, injected into the hole in the P region and injected into the N region of electrons in the diffusion to the active region after radiation compound and emit photons, the electric energy directly into light energy. It is a solid cold light source, with environmental protection, no pollution, less power consumption, high light efficiency, long life and other characteristics, therefore, LED street lighting will become the best choice for energy-saving transformation.
The solar street lamp battery should have: enough cycles of charge and discharge, low self-discharge rate, long service life, deep discharge ability, high charging efficiency, may be less maintenance or maintenance free
Solar street lamp battery configuration calculation method is as follows:
First, calculate the current:
Such as :12V battery system;
Two 30W lamps, a total of 60 watts.
Present current = 60 w 12 v = 5 a
Two: calculate the battery capacity need:
For example, street lamps shall have a total lighting time of 7 hours per night (h) at full load;
(e.g., in the evening
8:00 open, night
Closed road 1 at 11:30 a.m
Open route 2 at 4:30 a.m
At 5:30 closed)
To satisfy the need for 5 consecutive rainy days of lighting. (5 days plus the lighting of the night before the rainy day, 6 days)
Battery =5A x 7h x (5+1) days =5A x 42h=210AH
In addition, in order to avoid the over-charging of the battery, the battery is individually charged to about 90%; Discharge residual about 20%.
So 210AH is only about 70% of the true standard.
