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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

deep cell battery

deep cell battery

DC12-40-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

We specialized in export storage battery, UPS, inverter, solar power system and so on, rely on abundant  technical strength, full support of our customers and careful and strict management, our products are safe and sealing technology levels are industry-leading. We believe that the product quality is the base of the enterprise.

Deep cell battery developed by using advanced design concepts. Suitable for telecommunications BTS, power plants, power distribution control and monitoring systems, high-rate discharge UPS applications, emergency lighting and security alarm systems, railways, airports etc. Characterized by long life, environmental friendly, safety, and good adapt to different environment , is an ideal choice for many type of back up power.

Datasheet of deep cell battery


Specification of deep cell battery



Cells Per Unit


Voltage Per Unit: 12

Capacity: 40Ah@10hr-rate to 1.80V per cell @25℃

Dimension(LxWxH): 198x 166 x 171mm



Discharge Current: 400 A (5 sec)

Internal Resistance: Approx. 8 mΩ



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

Normal Operating Temperature Range: 25℃±5℃

Recommended Maximum Charging Current: 12A

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℃.



1. Fully sealed: with cover and pole double seal design to block leakage of electrolysis, safe-valve will also prevent outside oxygen and dust from entering into the battery.

2. Free maintenance: with the performance of water reproduce and high sealed reaction efficiency, there is no needs for any compensation of and water during use.

3. Safety: without acid leaked, reliable gas pressure venting system equipped with anti-explosion device makes the battery safer during use.

4. Long cycle life: anti-erosion pb-ca multi-alloy ,ABS plastic material and high sealed reaction efficiency assure the battery service life.

5. Temperature adaptability: the battery can be used safety during -25 ℃~50 ℃

Compliant Standards 

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


Application of deep cell battery

Control systems, Electric toys, Emergency lamp, Power tools, Medical treatment equipment, Alarm system, Emergency light system, Standby power supply, UPS and computer standby power supply, Power system, Telecommunication system, Firefighting equipment standby power supply, Railway station, Ship Equipment, Military Equipment, Telephone switching system.





Emergency Light


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Solar System.jpg

Electric Cars

Solar System


Product Processing

We strictly control each of the processing links, each of the accessories are the best quality, we hope that customers can use our products feel our sincerity and strength!

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Q1. What is your terms of packing?

A: Generally, we pack our goods in colour cartons with our own or customer brand design, one pc one carton.

Q2. What is your terms of payment?

A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q3. What is your terms of delivery?


Q4. How about your delivery time?

A: Generally, it will take 25 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q5. Can you produce according to the samples?

A: Yes, we can produce by your samples or technical drawings.

Q6: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit ;

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

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