Volt Polska Gel VPRO Solar 12V 140Ah Deep-Cycle Gel Battery

The Volt Polska Gel VPRO Solar is a 12V 140Ah deep-cycle gel battery engineered for demanding renewable energy storage and backup applications. Its thixotropic gel electrolyte and corrosion-resistant lead-calcium grids ensure long service life even under partial state of charge operation. This maintenance-free VRLA battery delivers reliable power for a wide range of stationary and mobile installations.

Advantages

With a design life of 10 to 12 years and up to 1200 cycles at 50% depth of discharge, this battery offers exceptional long-term economy. The valve-regulated, spill-proof construction allows safe installation in any orientation, while the low self-discharge rate of approximately 3% per month at 25°C ensures it retains a charge during storage. The gel electrolyte eliminates electrolyte stratification and minimises plate corrosion, making the battery especially suited for cyclic use in solar and energy storage systems.

Suitable for

• Solar and wind power storage systems
• UPS and backup power units
• Telecommunication installations
• Emergency lighting and alarm systems
• Mobile home, caravan and marine applications

Key specifications

• Nominal voltage: 12V
• Nominal capacity (C10): 140Ah
• Electrolyte: Thixotropic gel
• Maximum discharge current: 1400A (5s)
• Internal resistance: ≤3.5 mΩ at 25°C
• Float charging voltage: 13.5V – 13.8V (25°C)
• Cyclic charging voltage: 14.4V – 14.7V (25°C)
• Operating temperature range (discharge): -20°C to 50°C
• Operating temperature range (charge): -10°C to 50°C
• Self-discharge rate: approx. 3% per month at 25°C
• Terminal type: M8 (T11)
• Container material: ABS
• Maintenance-free
• Cycle life: 1200 cycles @ 50% DOD
• Safety features: Spill-proof, explosion-proof, valve regulated

Recommendations

For optimal performance and longevity, pair this battery with a compatible solar charge controller and ensure proper ventilation during installation. Regularly check terminal connections and keep the battery in a cool, dry environment when not in use.