12V 25Ah Solar Street Light Battery

Introduction

 

lithium battery for solar street light is an energy storage device used in solar street light system. Its main function is to store the electricity generated by solar panels during the day for nighttime street lighting. It has the advantages of high energy density, long life, high charging and discharging efficiency, light weight, environmental protection and no pollution. It is usually used in conjunction with solar panels, LED lamp heads, controllers and other components to form a complete solar street light system.

Advantages

1. High-performance design

The battery adopts a 4-series (4S) system design with a rated voltage of 12.8V, and is equipped with a 5-parallel (5P) 32700 type lithium iron phosphate battery cell (single cell voltage 3.2V, capacity 5Ah). The overall structure is reasonable and the voltage platform is stable, which helps the system maintain continuous power supply under various working conditions. The rated capacity of the battery pack reaches 25Ah, and the total energy is 320Wh, which can support the operation of medium and high power LED street lights all night and meet the requirements of conventional lighting duration.

2. High efficiency and intelligent control coexistence

The charging and discharging efficiency of the battery system is not less than 96%, which can minimize energy loss and improve the utilization effect of energy storage after solar energy conversion. In terms of discharge, the battery supports a maximum continuous discharge current of 25A, which is suitable for driving high-power LED lighting loads. In terms of charging current, the maximum charging current is 5A, and the standard charging current does not exceed 10.8A. It is recommended to charge at a current of 0.6C or less, which can effectively control the temperature rise and extend the service life.

3. Wide temperature adaptability

The battery has good temperature adaptability and can be charged normally in the range of -10℃ to 60℃. The discharge temperature range is wider, reaching -20℃ to 60℃. It can cope with the changing outdoor climate conditions and is suitable for year-round use. The battery supports SOC (state of charge) management range of 10% to 100%, which can achieve more precise energy control, making it easier for the controller or system to arrange lighting strategies according to the remaining power.

4. High-quality structure

The battery package adopts epoxy board combined with blue PVC film structure, which has good mechanical protection performance and basic protection capabilities. The wiring part adopts UL3135 14AWG standard red and black lead wire, with a length of 300mm, which has good conductivity and heat resistance, which is convenient for users to standardize access to the solar control system and improve system compatibility.

Product Application

 

 

Night lighting power supply

Provide stable power support for solar street lights at night or on rainy days, and realize independent lighting in areas without power grid.

 

Energy-saving energy storage system

Store the electricity generated by solar panels during the day to improve energy efficiency and reduce traditional energy consumption.

Emergency lighting guarantee

In the event of natural disasters or power outages, it serves as a backup power supply to ensure uninterrupted public road lighting.

 

Smart street light system support

Support linkage with smart devices such as light control, time control, and sensors to realize on-demand lighting and remote management functions.

Offer OEM and ODM LiFePO4 battery packs

Product drawing

Battery pack parameter

Rated voltage	12.8V	4 series	Max. continuous discharging current (A)	25
Battery pack voltage range	10～14.6V	Per cell 2.5V-3.65V Lithium iron phosphate battery	Max. continuous charging current (A)	5
Rated capacity	25Ah		Discharging over-current protection (A)	40
Total energy	320Wh		Total weight	3.6kg estimation
Series-parallel system	4S 5P	32700(3.2V5Ah)	Ambient relative humidity	10%-90%
SOC range	10%-100%		Operating temperature	Charging temperature	'-10℃～60℃
Charging and discharging capacity efficiency	≥96%			Discharging temperature	'-20℃～60℃
Standard charging current(A)	≤10.8	0.6C or below is recommended	Storage temperature	Short term (1 month) -10℃～45℃	Storage should be charged to more than 60% of capacity
Standard discharging current(A)	≤14.4	0.8C or below is recommended		Long-term (within 1 year) 0℃～35℃
Heating control	(Optional)		Shell material	Epoxy board + blue PVC film
Battery dimension	210*155*80mm (MM L*W*H)	Tolerance ±3	Input/Output method	UL3135/14AWG/ Red and black cables 300mm
Product heating strategy	Conditions for activation	1. Detection temperature is lower than 0 ° C, or enter the charging low temperature protection state: -3 ° C. 2. The charger or charging current is detected 3. Temperature difference is not greater than 30℃, and the minimum temperature is greater than -40℃ (to prevent temperature control damage abnormal opening)
	Exiting conditions	1. Chargeing removed or no charging current detected 2. The temperature is greater than 5 ° C

Showcase

 

 

Product Solution Customization

 

Fast delivery of lithium battery solutions

Quality Assurance

 

1600

+

staff

Advanced equipment, skilled front-line staff.

3 R&D

+

centers

3 R&D centers Shenzhen, Hefei and Luan

512

+

patents

Including 17pcs international patents

300

+

customers

Long-term stable cooperative customers

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