The OPzS batteries from Hoppecke are filled with liquid electrolyde (diluted sulphuric acid). The vented stationary blocs are made at 6V and 12V. The OPzS batteries are ideal for deep discharge cycles which is the case in off-grid photovoltaic applications. 

Stay Charged Longer

The life expectancy of our batteries is one of the longest in the global market. You can feed power to your off-grid solar system for up to 18 years. That means over 1400 cycles with 80% depth of discharge (DOD).

The Most Efficient Lead Acid Battery

The voltage per battery bloc is 6v or 12v with an efficiency 90-95% and operating temperature from -20 to +50 deg celcius, these batteries are suitable for any climate around the world.

Why Hoppecke Batteries Are The Right Choice

• Up to 20% longer life span compared to conventional vented tubular batteries
• Ideal for off-grid solar systems with high charge and deep discharge rates.
• Easier installation with a 12V battery 
• Visible control of electrolyte level thanks to clear transparent housing
• Almost maintenance-free with Aquagen recombination stubs.

Using the optional AquaGen recombination caps they have extremely long intervals between topping up with water.

The Hoppecke OPZ batteries are manufactured to DIN standards (IEC-61427) for the support of photovoltaic systems.