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

Flooded Deep Cycle Solar Battery

Flooded Deep Cycle Solar Battery

OPzS2-250-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

OPzS2-250-Y(Valve Regulated Flooded Tubular Forklifts Battery)

OPzs series product belong to vave regulated flooded tubular forklifts battery, tubular positive plate flooded type, high performance, long service life new battery, which is developed in accordance with Germany Standard. Ideal for traction forklifts, traction electric vehicles, electric cars, wind power, etc...

Main Parameters








Dry Weight


Wet Weight


Terminal Type





Sealed Type
Brand Name

Product Features

1. long design life, cycle life is long;     2. Cycle life: >2200 at 80% DOD
3. Self discharge rate ≤5%/month        4. Adopt the purest materials, low self discharge

5. Good cyclic and enduring ability.      6. Advanced Deep Discharging Ability

Product Specification

Voltage Per Unit2V
Capacity250Ah@10hr-rate to 1.85V per cell @25℃



124 x 206 x 410mm
Approx WeightWithout Electrolyte 15.8kg With Electrolyte 21.1kg

Max. Discharge


1200 A (5 sec)
Internal ResistanceApprox. 0.76 mΩ




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

Optimal Operating

Temperature Range

25℃± 5℃
Float charging Voltage2.23 to 2.25V(DC)/cell at 25℃

Maximum Charging


Cycle Service2.40 to 2.45 V(DC)/cell at 25℃
Self Discharge

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

Please charge batteries before using.

TerminalThread insert & Bolt (F10-M8)
Container MaterialA.S. (UL94-HB), and UL94-V0 is Optional.

Product Details
1. Positive plate: Use multi-element alloy die-casting molding tubular plate, which can effectively prevent active material loss.

2. Negative plate: The grid is radiate structure pasted plate, improveing the utilizationof active material and ability of large current discharge.

3. Separator: Porous corrugated plastic board combine with microporosity rubber separactor, more space for electrolyte storage, improving the speed of electrolyte diffusion, avoid the short circuit after deep dischrage.

4. Flooded electrolyte design: contain more electrolyte, space between plates and separators are full of electrolyte thus means good heating capacity and avoid “thermal runaway”
5. Battery case: made of high strength PP and durable design.

6. Acid Proof Bolt: Using special infundibulate acid proof bolt, has the function of acid mist filtration and inflaming retarding, measuring the electrolyte density. Safe use and easy maintenance.
7. Sealed Terminal: Embedded copper die-casting lead-based terminals, more current carrying capacity and corrosion resistance, the unique column selaed structure can effectively remove the stress caused by plate and avoid leakage.

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






Wind Energy 2.jpg


Wind Energy

Light Suppler power

Solar System 1.jpg

Traction Forklifts 1.jpg

Solar System

Traction Forklifts



CHENGYU POWER is a professional Valved Regulated Lead Acid battery manufacturer with more than 8 years experience in China. Our main products are VRLA batteries including AGM batteries, Gel batteris, Deep cycle batteries, Front terminal/access batteries, OPzV batteries, OPzS batteries, which were widely used in UPS system, Telecommunications system, Power Station, EPS, Solar and Wind energy storage.....

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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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Why Choose Us?

1. We have more than 10 years experience of manufacturing SEALED LEAD ACID battery.

2. Our battery is maintenance free with long life design.

3. Strictly quality control through the whole production process.

4. Batteries price will be changed with the lead price change.

5. High quality service from CHENGYU family member' hard working, always have, always will.

Our Services
Pre-sale service
* Fast response within 24 hours.
* Online service.
* OEM manufacturing service for customers is ok.
After-sale service
* Offer 12 months warranty for AGM battery with capacity 1.3Ah~250Ah,Offer 24 months warranty for others.
* During the warranty, if failed, send some pictures of failed battery for us and tell us the performance of failed one.
* If we confirmed the problem of battery causes the battery fail, we will send new battery(to replace) for you to replace.

Contact Me

Name: Aamy

Tel/ Wechat: +86 17854275721


Whatsapp/ Skype: +86 17854275721

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