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

Sealed Lead Acid Battery

Sealed Lead Acid Battery

DC2-500-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℃ Separator: Using improved AGM separator, makes lower...

Product Details

Sealed Lead Acid battery is such battery where electrical energy can be stored as chemical energy and this chemical energy is then converted to electrical energy as when required. The conversion of electrical energy into chemical energy by applying external electrical source is known as charging of battery. Whereas conversion of chemical energy into electrical energy for supplying the external load is known as discharging of secondary battery.

During charging of battery, current is passed through it which causes some chemical changes inside the battery. This chemical changes absorb energy during their formation.

When the battery is connected to the external load, the chemical changes take place in reverse direction, during which the absorbed energy is released as electrical energy and supplied to the load.

Product Features

• Excellent safety performance: No electrolyte leakage, battery swelling and cracking under normal use.
• Good discharging performance: With smooth discharging voltage and mild discharging platform.
• Good shock-proof performance: The fully charged and completely fixed battery, with 4mm amplitude and 16.7HZ frequency does have a normal open circuit voltage without leakage, batteries swelling or cracking problem after one-hour vibration.
• Good impact-proof performance: The fully charged battery is proved to maintain normal open circuit voltage and be without leakage or batteries swelling or cracking after dropping three times from 20cm height naturally to a 1 cm-thick hardwood board.
• Good resistance to over discharge: In temperature of 25 degree Celsius, the fully charged battery discharges with fixed resistance which is equivalent to the one required by 1CA discharge of the battery for three weeks, and it can restore capacity over 75%.
• Good resistance too high current: The fully charged battery is proved to be without conductive part melted or any apperance deformation after discharging at 2CA for 5 minutes or 10 CA for 5 seconds.

Specification for Sealed Lead Acid Battery



Nominal Voltage: 2v

Nominal Capacity: 500ah

Cells Per Unit



500Ah@10hr-rate to 1.80V per cell @25℃

Size(LxWxH): 242 x 172 x 366mm




2500 A

Internal Resistance: 0.62 mΩ

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

Terminal Type


Normal Operating Temperature Range: 25℃ ± 5℃

MOQ50/PCWarranty1-2yearsBrand NameCHENGYU

Recommended Maximum Charging Current: 100A

Float charging Voltage: 2.27 to 2.3/ Average at 25℃

Equalization and Cycle Service: 2.43 to 2.47 unit Average at 25℃

Terminal: Thread insert & Bolt

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 

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


Product Details 

  image003.jpg  image005(001).jpg


Datasheet for Sealed Lead Acid Battery



Product Processing

  车间2 325.jpg




All the battery with carton box packing, all box with wooden pallets packing.


Contact me


Hot Tags

Hot Tags: sealed lead acid battery, manufacturers, high quality, long life, prices, for sale
sealed lead acid battery, manufacturers, high quality, long life, prices, for sale

Previous: Deep Cycle Battery Next: agm solar storage battery

Related Products