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Zhongneng Chengyu Power Co.,Ltd

Address: No.216 Changjiang Road, Huangdao Development District, Qingdao City, Shandong Province, China


Tel: +86-532-86934246

Fax: +86-532-86934246

12v lead acid batteries

12v lead acid batteries

DC12-28-Y Product Features: Long design life(25℃): 5 years(≤28Ah), 10 years(>28Ah) Low self-discharge rate: ≤3%/Month Good high rate discharge performance High sealed reaction efficiency ≥99% Wide operation temperature range: -20℃~60℃ Structure: Compact design, shorter internal connectors...

Product Details

12v lead acid batteries should be stored in dry and ventilated place, away from direct sunlight and away from heat sources; When handling batteries even force, the force of the housing portion of the battery to avoid damage to the pole; The installation should use insulated tools to prevent click.

Product Features 

The series of products are widely used in different fields, such as banking, securities, telecommunications, transportation, taxation, health care, education, military, government agencies, scientific research machinery and mining production enterprise.

The series of products has large current discharge performance and good uniformity, high specific energy, long life and other characteristics.

Reliable seal, no leakage, high energy, excellent large current discharge performance.

All the products can be customized, including the capacity and voltage.

Datasheet of 12v lead acid batteries


Specification of 12v lead acid batteries



Cells Per Unit


Voltage Per Unit: 12

Capacity: 28Ah@20hr-rate to 1.75V per cell @25℃

Dimension(LxWxH): 166 x 175 x 125mm



Discharge Current: 280 A (5 sec)



Internal Resistance:  9.0 mΩ

Normal Operating Temperature Range: 25℃± 5℃

Container Material: A.B.S

Recommended Maximum Charging Current: 8.4A

Float charging Voltage: 13.7 to 13.9 VDC/unit Average at 25℃

Equalization and Cycle Service: 14.6 to 14.8 VDC/unit Average at 25℃

Operating Temperature Range: Discharge: -20℃ ~60℃; Charge: 0℃~50℃; Storage: -20℃~60℃

Self Discharge: CHENGYU Valve Regulated Lead Acid (VRLA) batteries can be stored for more than 6 months at 25℃. Self-discharge ratio less than 3% per month at 25℃.

Compliant Standards

1. IEC60896-21/22-2004/ DIN43539-T5/ YD/T1360-2005
2. Passed ISO9001, ISO14001, OHSAS18001, UL, CE certificate



1. Photovoltaic/ Wind Energy/ UPS/ EPS/ Marine/ Boat/ Light Electric Power Supply

2. Solar power system(off-grid solar power system, solar street light system, solar garden light system)

3. Wind Power System/ UPS and computer backup power/ Telecommunication system

4. Power station System/ Railway System/ Emergency lighting system

5. Automatic control system/ Alarm system for fire protection, security

solar power system diagram.jpg



Q1. Are you the manufacturer?

  A: Yes, we are the leading manufacturers in Guangzhou.

Q2. What kinds of battery do you have?

  A: We have AGM Battery, GEL Battery, UPS Battery, Solar Battery, Lead Acid Battery…

Q3. What is your product series range?

  A: 12V 1.2Ah-250Ah

       6V 1.2Ah-220Ah

       2V 100Ah-3000Ah

Q5. What is your products advantage?

  A: We produce lead plates by ourselves, we control the quality strictly. Offer you excellent quality with reasonable price and good service.

Q6. What is your battery life cycle?

  A: Life cycle is connecting with discharge depth of discharge(DOD)

      If 30% DOD,1500 cycle times,

      If 50% DOD,700 cycle times,

      If 100% DOD,300 cycle times.

Q7. How about the warranty of your products?

A: 3 years warranty since shipping day.

Q8. Do you offer samples for testing?

  A: Yes, we offer free samples for testing, but the clients need pay the freight.

Q9. Is it available for OEM service?

  A: Yes, registered brands from reliable client are available.

Q10. What certificates do you have?

    A: We have CE,ISO,SGS,UL,CQC certificates.

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