Egber OPzS battery is a premium lead-acid deep cycle solution known for its optimized plate design and exceptional capacity that exceeds DIN standards. These flooded tubular batteries are engineered for demanding energy storage applications where long service life and outstanding reliability are critical. Each Egber OPzS cell delivers a nominal voltage of 2 volts, and multiple cells can be connected in series to achieve higher voltages such as 6V, 12V, or even 48V systems. With rated capacities ranging from 60Ah to 3000Ah, Egber OPzS batteries provide a versatile power source for off-grid solar systems, uninterruptible power supplies (UPS), telecom stations, and industrial backup power.
Nominal voltage: 2V, 6V, 12V Rated capacity: 60AH~3000AH
As one of the most enduring lead-acid batteries on the market today, Egber OPzS battery features a tubular positive plate that effectively prevents active material shedding. This design uses a Pb-Sb multi-alloy grid, which enhances corrosion resistance and extends operational life. Combined with a high-porosity separator made of porous rubber and PVC, the battery achieves excellent acid circulation and low internal resistance. A key advantage is the acid-proof vent plug – a special funnel-shaped bolt that filters acid mist, retards flames, and allows easy measurement of electrolyte density and temperature.
For those seeking a long-lasting OPzS tubular battery, these cells deliver over 3,000 cycles at a 50% depth of discharge (DoD) and have a design life exceeding 20 years. Low maintenance requirements and sufficient electrolyte reserve ensure reliable performance even in demanding conditions.
Positive Plate: Tubular design prevents active material loss; Pb-Sb alloy grid provides superior corrosion resistance.
Separator: Combined porous rubber and PVC offers high porosity and excellent chemical durability.
Acid-Proof Bolt: Flame-retardant funnel shape allows electrolyte monitoring while filtering harmful acid mist.
Cycle Life: More than 3,000 cycles at 50% DoD – ideal for daily deep cycling.
Design Life: Over 20 years in float service (at 20°C).
Maintenance: Low water loss; easy refilling.
We supply only brand new, high-quality OPzS batteries with a 3-year warranty. Below are popular 2V models – for 6V or 12V configurations, simply connect the required number of cells in series. Custom capacities are also available upon request.
| Battery Model | Nominal Voltage | Nominal Capacity | Length | Width | Hegith | Terminal | More Detail |
| OPzS2-200 | 2V | 200AH | 206mm | 103mm | 355mm | T10/Copper | Specification Sheet |
| OPzS2-250 | 2V | 250AH | 206mm | 124mm | 354mm | T10/Copper | Specification Sheet |
| OPzS2-300 | 2V | 300AH | 206mm | 145mm | 354mm | T10/Copper | Specification Sheet |
| OPzS2-420 | 2V | 420AH | 206mm | 145mm | 470mm | T10/Copper | Specification Sheet |
| OPzS2-500 | 2V | 500AH | 206mm | 166mm | 470mm | T10/Copper | Specification Sheet |
| OPzS2-600 | 2V | 600AH | 206mm | 145mm | 645mm | T10/Copper | Specification Sheet |
| OPzS2-800 | 2V | 800AH | 210mm | 191mm | 645mm | T10/Copper | Specification Sheet |
| OPzS2-1000 | 2V | 1000AH | 210mm | 233mm | 645mm | T10/Copper | Specification Sheet |
| OPzS2-1200 | 2V | 1200AH | 210mm | 275mm | 645mm | T10/Copper | Specification Sheet |
| OPzS2-1500 | 2V | 1500AH | 210mm | 275mm | 795mm | T10/Copper | Specification Sheet |
| OPzS2-2000 | 2V | 2000AH | 399mm | 210mm | 771mm | T10/Copper | Specification Sheet |
| OPzS2-2500 | 2V | 2500AH | 487mm | 212mm | 771mm | T10/Copper | Specification Sheet |
| OPzS2-3000 | 2V | 3000AH | 576mm | 212mm | 771mm | T10/Copper | Specification Sheet |
Thanks to their robust tubular construction and deep-cycle capability, Egber OPzS batteries are the preferred choice for renewable energy storage (solar/wind), railway signaling, marine power, and critical backup systems. Every Egber battery we produce comes with a 3-year warranty against manufacturing defects. We are committed to providing only brand new, high-quality units.
If you have any questions about which Egber OPzS battery model suits your project, or if you need help designing a series/parallel bank, please do not hesitate to contact us. We will reply at our first time. Choose the proven reliability of Egber OPzS technology – built to last for decades.
