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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

sealed battery

sealed battery

DG12-40-Y Product Features: Long design life(25℃): 12 years for 6V/12V 18 years for 2V Low self-discharge rate: ≤2.5%/Month High sealed reaction efficiency ≥98% High specific energy density Excellent charge acceptance Wide operation temperature range: -40℃~ +60℃ Grid: patent primary and...

Product Details

Zhongneng Chengyu Power Co., Ltd  is the leading vendor supplying lead acid battery solutions. Our business covers a wide range of fields, including solar energy, wind energy, Telecommunications, electric power, UPS, emergency illumination, security, equipment, cars, motors, electric bicycles, golf carts, forklifts, boats, engineering machines, etc. We are working on providing scientific, high grade, and professional resolving plans to let customers have wonderful battery service in multiple important parts and enrich their modern life.

Specification of sealed battery

Sealed deep cycle gel battery is a valve regulated, maintenance free, lead acid battery.  Gel batteries are extremely robust and versatile. These type of batteries produce few fumes and can be used in places without much ventilation.

Cells Per Unit: 6
Voltage Per Unit: 12
Capacity: 40Ah@20hr-rate to 1.75V per cell @25℃
Dimension(LxWxH): 198 x 166 x 171mm
Weight: Approx. 13.2Kg(Tolerance ± 3%)
Max. Discharge Current: 400 A (5 sec)
Internal Resistance: Approx. 9 mΩ
Operating Temperature Range:
Discharge: -40℃ ~60℃;
Charge: -20℃~50℃;
Storage: -40℃~60℃
Normal Operating Temperature Range: 25℃ ± 5℃
Float charging Voltage: 13.6 to 13.8 VDC/unit Average at 25℃
Recommended Maximum Charging Current: 8.0A
Equalization and Cycle Service: 14.2 to 14.4 VDC/unit Average at 25℃
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℃. Please charge batteries before using.
Terminal: Terminal F4/F11
Container Material: A.B.S. UL94-HB, UL94-V0 Optional.

Compliant Standards

GB/T 22473-2008
Passed ISO9001, ISO14001, OHSAS18001, UL, CE certificate

Datasheet of sealed battery


Product Processing of sealed battery



Communication and signal systems such as telecommunication, China mobile, and railway etc.

Electric power system and nuclear power plant, energy storage of solar  and wind power generation;

UPS, medical equipment, and emergency illumination etc.



Solar Panel

Solar System



Wind Energy

Light Supply System

Material Advantage

Plates:1% higher than the average content of tin plate, effectively prevent corrosion and sulfide of the plate.

Electrolyte:Silicon-containing salt composition, effectively prevent the battery from dehydration.

Paper separator:using domestic top brands, a variety of materials certification.

Terminals:All copper materials, there are many other battery suppliers using lead terminals.

Battery products:enough plate number, enough battery capacity, enough weight.


1.Don’t near the hot source and don’t under the sunshine.

2.Don’t charge in the sealed container.

3.No short circuit. It should be addition charge if you don’t use, and single charge per three months, to avoid irreversible sulfating. The battery should be changed when the battery jar broken or the electrolyte omitted, to avoid acid corrosion.

4.Don’t store in the space of acid gas. You should be careful and regular check when use the battery. To avoid the battery don’t work. You should change the battery if the capacity is not full or has been damage, especially after one year using.


Our main market is Africa, we also do other market business, Mid East,  Asia, America, etc. We have got a lots of good feedback of our products from our clients, and we will also listen the advice from them to develop our products. It makes us becoming better to provide the best service to our client. 

Main Market.jpg


Every year we attend many exhibition fair in China and abroad. Such as Canton Fair, SNEC and etc. We always show the newest, best quality, best selling  products in the fair. 



Q1: What is your terms of payment?

A:  We accept T/T, PayPal, Western Union, Small-amount payment, Money Gram


Q2: How's the delivery time ?

A:It will take about 30 days for production usually.


Q3: How about the standard of package?

A: For the small capacity, it use carton, but for big capacity, we should use strong wooden case for protection.


Q4: Can you print my logo on the battery cover?

A: Yes, OEM is available,we can print your logo on the battery case, and you can offer your logo.


Q5: How to maintain the battery?

A:The battery should be stored in clean, dry, ventilated, dark environment when not using, keep it after full charge, recharge it every 3 months or 6 months.


Q6: How can you tell if a battery is good or bad?

A: You should first check the battery for defects such as a broken circuit, a short, or a broken container. If an outward problem is not apparent, then you will have to check the battery's capacity using known measuring techniques to ascertain the problem.


Q7: What kind of certificate you have ?

A. Our company already achieve ISO9001, and for products, we have CE, ROHS,SGS.

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