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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

Flooded Tubular Traction Battery

Flooded Tubular Traction Battery

OPzS2-770-Y Product Features: Cycle life: >2200 at 80% DOD Self discharge rate ≤5%/month High charge acceptance performance; Wide operation temperature: -40℃~ 70℃ Good deep discharge recovery performance. Positive plate: tubular type, with die-casting thick Pb-Ca grid, it has very good...

Product Details

OPzS2-770-Y of Flooded Tubular Traction Battery

The electrode is made mainly of lead and its oxide, and the electrolyte is a battery of sulphuric acid solution. English: Lead-acid battery. In the discharge state, the main component of the positive electrode is two lead oxide, and the main component of the anode is lead, and the main components of the positive and negative poles are lead sulfate in the charging state. It is divided into exhaust battery and maintenance free lead acid battery.


The battery is mainly composed of tube positive plate, negative plate, electrolyte, separator, cell tank, battery cover, pole column, liquid injection cover and so on. The electrode of the exhaust battery is made up of oxides of lead and lead, and the electrolyte is a aqueous solution of sulphuric acid.

Product Features of Flooded Tubular Traction Battery

Cycle life

>2200 at 80% DOD

Self discharge rate


Positive plate

 tubular type, with die-casting thick Pb-Ca grid, 

 and very long service life

Negative plate

pasted flat type,  good high

rate discharge performance


PVC-SiO2 separator imported from Europe,

High charge acceptance


Good deep discharge recovery performance

Main Parameters of Flooded Tubular Traction Battery


Nominal Voltage


Nominal Capacity


Dry Weight


Wet Weight





Terminal TypeBrand Name

Product Specification of Flooded Tubular Traction Battery

Voltage Per Unit



770Ah@10hr-rate to 1.85V per cell @25℃


253 x 210 x 526mm

Approx Weight

Without Electrolyte 45.4kg With Electrolyte 58.9kg

Max. Discharge Current

3000 A (5 sec)

Internal Resistance

Approx. 0.31 mΩ

Operating Temperature Range

Discharge: -15℃ ~50℃;
    Charge: 0℃~40℃;
   Storage: -15℃~50℃

Float charging Voltage

2.23 to 2.25V(DC)/cell at 25℃

Maximum Charging Current


Cycle Service

2.40 to 2.45 V(DC)/cell at 25℃

Self Discharge

Self-discharge rate less than 3.5% per month at 25℃.


Thread insert & Bolt (F10-M8)


Compliant Standards:
IEC60254- 2005
DIN/ EN 60254-2
GB 7403-2008
Passed ISO9001, ISO14001, OHSAS18001, UL, CE certificate


Product Datasheet of Flooded Tubular Traction Battery



Product Packing

Chengdu Chongqing power supply compliance with strict inspection standards, packaging of cartons or wooden cases for the packaging of products, strictly control, eliminate the damage to the product

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1. Wind-Solar Energy Storage system
2. Solar street lights/  Household energy storage
3. Off-grid energy storage/  Mobile base stations
4. Telecom backup system
5. Emergency backup energy sources
6. Uninterruptible power system/  Grid load shifters



Traction Forklifts

Golfs Cars



Solar System

Wind Energy


Product Processing of Flooded Tubular Traction Battery
Chengyu power supply Co., Ltd. strictly abide by the national testing standards in the process of production, meets the testing requirements, and uses high-quality raw materials to produce products that satisfy customers. Our products and manufacturers are worthy of the trust and support of our customers.

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Product Factory & Exhibition Show

CHENGYU POWER Co., Ltd founded in 2004, specializes in the research, development, manufacturing and sales of TAICO branded lithium battery, storage battery. After years of innovation, TAICO has become a leading manufacturer of GEL batteries and one of the largest GEL batteries exporter in China.

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Contact Me

Name: Aamy

Tel/ Wechat: +86 17854275721


Whatsapp/ Skype: +86 17854275721

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