Light box advertisement is also known as "light box POSTER" or "night bright propaganda picture". For outdoor light box advertising, its application places are distributed on both sides of roads and streets, as well as public places such as cinemas (theatres), exhibitions (fairs), commercial downtown areas, stations, airports, docks, parks, etc. It is called ‘semipermanent’ street art in foreign countries. The new flexible light box is changed from the traditional light box, and the effect is poor during the day, without the defect of monotonous image and character font, with its realistic image. Display rich glyphs, regardless of the day and night with gorgeous colors, strong texture shows a unique decorative effect.
The backup battery of LED advertising light box requires that the battery can work continuously for more than 10 hours in case of power failure, and it is required to use it for 2 years without replacing the battery. Our company adopts the original imported Samsung battery to meet the customer requirements. The parameters of the finished battery are as follows:
|Battery pack model||GLD-11.1V-5.2AH|
|Model of single battery||Sanyo lithium ion 18650 cell|
|Battery combination mode||Three in series and two in parallel|
|Voltage after battery pack combination||11.1v (3.7V / section * 6 sections)|
|Battery charge and discharge voltage range after combination||9-12.6V|
|Battery capacity after combination||2600mAH / section * 1 Section|
|Battery pack size||18*66*109mm|
|Maximum discharge current||＞2A|
|Instantaneous discharge current||＞4A|
|Maximum charging current||＞0.2-0.5C|
|Charge and discharge times||> 1000 times|
Lithium ion battery is imported from Sanyo
Battery overcharge function: add a charger between P + and P - to charge the battery. When the voltage is charged to 12.6 ± 0.05v (it can be designed according to the requirements), the protection circuit will act, turn off the charging channel and realize overcharge protection.
Battery over discharge protection function: connect the load between P + and P - to discharge the battery. When the battery voltage drops to 9V ± 0.1V (it can be designed according to the requirements), the protection circuit will act and turn off the discharge path to realize the over discharge protection.
Short circuit protection function: when p + and P - are short circuited, the protection circuit will act quickly within 5-50us to cut off the path and realize short-circuit protection.
Over current protection function: when the voltage between b-terminal and p-terminal reaches (0.15 ± 0.02v), the protection circuit will act quickly within 5-26ms to cut off the path and realize the over-current protection.
Discharge temperature range: -10 ℃ - 60 ℃
Charging temperature range: 0 ℃ - 40 ℃
Storage temperature: 3 months: -20 ℃ - 45 ℃, 1 month: -20 ℃ - 60 ℃