Contact Us

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

Sealed Maintenance Free Solar Battery

Sealed Maintenance Free Solar Battery

CS12-9-Y Product Feature Long design life (25℃):5 years 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 between cells, thus low internal...

Product Details

CS12-9-Y of Sealed Maintenance Free Solar Battery

CHENGYU POWER CO.,LTD is a professional maintenance free valve regulated lead acid battery manufacturer with more than 18 years experience. Our product mainly applied for electric systems, security systems, medical equipment, shipping systems, telecommunications equipment, various testing machines, video transceiver, the banking uninterrupted power supply system, railway locomotives, railway communications, emergency lighting systems, small lamps, large UPS and computer back up power, fire extinguishing systems, electronic equipment, solar power systems, off grid solar power system, solar street light systems, and so on.

Product Feature of Sealed Maintenance Free Solar Battery

Long design life (25℃):5 years

Wide operation temperature range: -20℃~60℃

Low self-discharge rate: ≤3%/month

Plate: Pasted flat type, with patent formula of AM

High sealed reaction efficiency: ≥99%

Terminal: two, more types terminals are convenient for selection


 Compact design, shorter internal connectors between cells, thus low internal resistance


Using improved AGM separator, higher assembling pressure to increase cycle life

Terminal sealing

Double sealing techniques(mechanical+epoxy gule)

Battery case

Made of high strength ABS(UL94-HB) and UL94-V0 is optional

Datasheet of Sealed Maintenance Free Solar Battery




Specification of Sealed Maintenance Free Solar Battery




9.0Ah@20hr-rate to 1.75V per cell @25℃

Cells Per Unit


Dimension (LxHxW):  151x65x100 mm

Voltage Per Unit


Normal Operating Temperature Range: 25℃ ± 5℃



Max. Discharge Current: 90 A (5 sec)

Internal Resistance

Approx. 18 mΩ

Recommended Maximum Charging Current: 2.7A


F1/ F2

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

Container Material: A.B.S;  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 batteries can be stored for more than 6 months at 25℃.


Compliant Standards of Sealed Maintenance Free Solar Battery
1. GB/T19639-2005/ JIS C8702-2006/ IEC 61056-2002
2. Passed ISO9001, ISO14001, OHSAS18001, UL, CE and TLC certificate.


Why Choose us?


1. About Us: The company professional to do batteries;



2. Equipment & Technology: The quality of VRLA battery and production is the biggest supplier in;



3. Service: Stable product quality, supply, the good faith management.



Small UPS/ Emergency Light/ Security System/ Toys/ Medical 

solar system.png  power storage plant.png 

light supply system.png   security.png



Q1.  Are you factory? 
  A: Yes, we have factories, located in Liangshan City, Shandong province, China.
Q2.  Is it maintenance free lead acid  Sealed Lead Acid Battery ? 
  A: Yes, it is sealed maintenance free Sealed Lead Acid Battery
Q3.  Do you produce lead plates ? 
  A: Yes, we produced lead plates with first class pure lead, which purity is 99.99%, it means that we can reduce the production cost minimumly.  In other aspect, the quality can be controlled strictly.
Q4.  What is your product series range? 
  A: 2V 100ah-35000Ah
      12V 1.2Ah-250Ah 
      6V 1.2Ah--220Ah
Q5.  What is your ups batterie 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
Q6.  What is your warranty policy? 
  A: 12V 1.2Ah-28Ah, 6V1.2Ah-14ah, 4V4Ah-9Ah, 2V100Ah-150Ah 
       (1 year warranty since shipping day) 
       12V 33Ah-250Ah, 6V100Ah-220Ah, 2V200Ah-3000Ah
       (2 years warranty since shipping day)
Q7.  What is the service temperature? 
  A: -30°c ~ +65°c ,recommend is 25°c ± 5%
Q8.  Do you offer free samples for testing? 
  A: Yes, we can, but the clients need pay the freight.
Q9.  Is it available for OEM service? 
  A: Yes, registered brands from reliable client are available.

Contact Me

Name: Aamy


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