The RITAR OPzV 2-300 sealed lead-acid battery with gel electrolyte and Tubular Plate technology is designed for long-lasting and reliable operation under extreme conditions. Thanks to its patented design and positive plate material, the battery delivers consistent performance across a wide temperature range and intensive cycling. Technical parameters: - Type: VRLA (Valve Regulated Lead Acid) with immobilized gel electrolyte - Voltage: 2V - Nominal capacity: 300Ah (at 10-hour discharge to 1.80V / cell at 25°C) - Internal resistance: ≤0.85 mΩ (at full charge, 25°C) - Terminals: F10 (M8), tightening torque 10–12 N m - Peak discharge current: 1350A (5 seconds) - Service life: 25 years (buffer mode) - Maximum charge current: 60.0A - Reference capacities: - C₃: 225.0Ah - C₅: 255.0Ah - C₁₀: 300.0Ah - C₂₀: 322.0Ah - Charging voltage: - Buffer mode: 2.27–2.30V / cell (compensation -3mV / °C) - Cyclic mode: 2.37–2.40V / cell (compensation -4mV / °C) - Temperature range: - Discharge: -40°C to +60°C - Charge: 0°C to +50°C - Storage: -40°C to +60°C - Self-discharge: <2% per month (20°C) - Weight: 23.5 kg (±5% tolerance) - Dimensions: 206x145x355 mm (total height 390 mm) - Case: A.B.S. plastic Operational advantages: - Sealed design with valve regulation - Resistance to 1200 discharge cycles (50% DOD) - Operation in extreme temperatures (from -40 ° C) - Low self-discharge - storage up to 6 months without recharging - Compliance with DIN and ISO standards (9001 / 14001 / 45001) Technical features: - Full activation of capacity after 3 charge-discharge cycles - Built-in temperature voltage compensation - Protection against overcharge and deep discharge - No need for maintenance Manufacturer's warranties: - Design life of 25 years in float mode - Shockproof housing with protection against vibrations - Stable operation at humidity up to 95% This model combines high energy capacity with exceptional reliability, which makes it the optimal choice for professional applications where uninterrupted operation and a long service life are critical. Before use, it is recommended to perform a full charge according to the manufacturer's instructions.