OPzV and OPzS batteries are the benchmark for long-life solar storage in professional off-grid sites, telecom installations and industrial battery banks. Thanks to their tubular plates, they reach up to 8,000 cycles at 20% daily discharge — unmatched longevity in the lead-acid world. OPzS (liquid electrolyte, DIN compliant) delivers maximum cycles with periodic maintenance. OPzV (gel electrolyte) adds maintenance-free operation. Available from Hoppecke, the world leader in industrial tubular batteries.
OPzV or OPzS:OPzV (gel) = maintenance-free, ideal for remote sites or enclosed spaces. OPzS (liquid electrolyte) = maximum cycles, periodic maintenance (distilled water), for installations with available technician.
Record longevity: aim for a maximum 20% daily discharge to reach 8,000 cycles. At 50% daily discharge, lifespan drops to approximately 1,500 cycles.
2V cell format: OPzV/OPzS are generally sold as individual 2V cells to be assembled in series. For a 48V bank, you need 24 cells in series. Plan space and cabling accordingly.
Professional applications: telecom, off-grid sites with regular consumption, off-grid datacentres, agricultural and industrial installations — this is where OPzV/OPzS outperforms all other technologies over time.
