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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

Maintenance Free AGM Battery

Maintenance Free AGM Battery

DC12-75-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

DC12-75-Y of Maintenance Free AGM Battery


We manufacturer sell many kinds of Dry Charged Batteries and Maintenance Free Batteries with different specifications for car, auto, truck ,ship, boat, and motorcycle, etc.

We have 30 experience in automotive battery ,and obtained ISO19001, ISO14000,ISO16949,CE,SONCAP and CQC certificates for different markets per our clients. Our products won the trusth and ratification of both home and abroad customers.

Product Features of Maintenance Free AGM Battery


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


Pasted flat type, with patent deep cycle formula of AM


Two or more types terminals are convenient for selection

Vent system

Gases can be vented through flame arrester / filter

Separator: Using AGM separator, lower resistance higher assembling pressure to increase deep cycle life

Battery case

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

Terminal sealing: Double sealing technics ( mechanical+epoxy gule).

Datasheet of Maintenance Free AGM Battery




Specification of Maintenance Free AGM Battery



Cells Per Unit


Voltage Per Unit: 12

Capacity: 75Ah@10hr-rate to 1.80V per cell @25℃

Dimension(LxWxH): 260x 169 x 210mm




750 A (5 sec)

Internal Resistance: 5.8 mΩ



Container Material: A.B.SUL94-HB, UL94-V0 Optional.

Recommended Maximum Charging Current: 22.5A

Normal Operating Temperature Range: 25℃±5℃

Float charging Voltage: 13.6 to 13.8 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 of Maintenance Free AGM Battery 
1. IEC60896-21/22-2004/ DIN43539-T5/ YD/T1360-2005
2. Passed ISO9001, ISO14001, OHSAS18001, UL, CE certificate


Application of Maintenance Free AGM Battery

Solar System 1.jpg

Wind Energy 2.jpg

Solar System


Wind Energy


Light Suppler power 1.jpg

Golfs Cars 1.jpg

Light Supply

Electric Cars

Packing of Maintenance Free AGM Battery
All the battery with carton box packing, all box with wooden pallets packing.


Trade Terms:
1.Payment: T/T, Western Union, L/C
2.Delivery Time: 15-25 days

Why Choose us?
1.We are China Leading Solar Battery  Manufacturer.
2. Best Sevice and Best price
3. Products conform to national testing standards
4.100% QC inspection Before Shipment.
5.Best Quality & Best Service with Competitive price.

How to Contact Us?
Send your Inquiry Details in the Below, Click "Send" Now! or you can add my skype: +86 17854275721

Contact Me

Name: Aamy


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