Whisper Power 40290071 - GEL Battery 12 V - 145 Ah

Whisper Power 40290071 - GEL Battery 12 V - 145 Ah

The Whisper Power 40290071 GEL Battery is a powerful 12 V, 145 Ah deep cycle battery specifically designed for demanding applications that require frequent cyclic discharges. With an impressive floating design life of up to 12 years, this battery is engineered to perform reliably even under extreme temperatures, making it suitable for a wide range of environments, including marine and solar energy systems. Its robust construction features a strong grid design that ensures reliability during frequent deep discharges, offering peace of mind for heavy-duty service.

Key Features

• Deep Cycle "Long Life" Battery: Tailored for extended service, capable of withstanding repeated deep discharge cycles.
• Maintenance-Free: The recombination (VRLA) design eliminates the need for regular maintenance.
• Shock Resistant: Built with a heavy-duty casing to endure impacts and vibrations, ensuring durability in challenging conditions.
• Limited Ventilation Required: The sealed design minimizes ventilation needs, simplifying installation and enhancing safety.
• Transportation by Air Approved: This battery meets regulations for safe air transport, making it versatile for various applications.
• Ideal for Frequently Used Electrical Systems: Optimized for consistent performance in high-demand environments.

Specifications

• Nominal Voltage: 12.0 VDC
• Nominal Capacity: 145 Ah (C20 rating), ensuring reliable energy delivery for extended periods.
• Dimensions: 340 x 173 x 280 mm (13.4" x 6.8" x 11"), providing a compact yet powerful solution.
• Weight: Approximately 44.0 kg (97 lb), balancing robust construction with manageable weight.
• Terminal Type: M8 stainless steel terminals for secure and dependable connections.
• Number of Cells: 6 cells, ensuring consistent power output and performance.

Charge / Discharge Parameters

The Whisper Power GEL Battery is optimized for superior performance across various charging conditions:

• Constant Voltage Charging (IU, float): 13.60 to 13.80 VDC @ 25°C, maintaining stable voltage for battery health.
• Cyclic Charging (IUU, absorption): 14.25 to 14.60 VDC @ 25°C, maximizing energy retention and battery lifespan.
• Recommended Charging Current Limit: Up to 29.0 A, ensuring efficient charging without compromising battery integrity.
• Temperature Cut-Off Ratio: 4 mV/cell/°C, providing stability in fluctuating temperature conditions.
• Discharge Cut-Off Voltage (100% Depth of Discharge):
  • 1.75 VDC @ (A) ≤ 0.2 C
  • 1.70 VDC @ 0.2 C (A) ≤ 1.0 C
  • 1.65 VDC @ (A) ≥ 1.0 C

Rated Capacity @ 25°C

This battery showcases exceptional performance under rated conditions:

• 20 Hours Discharge: 145.0 Ah, providing reliable power for prolonged usage.
• 10 Hours Discharge: 136.0 Ah, suitable for moderate power demands.
• 5 Hours Discharge: 117.0 Ah, effective for high-load applications.
• Peukert Coefficient: 1.21 < P < 1.24, ensuring efficient energy use during discharge cycles.
• Time Reserve at 25 Amps Discharge: 261 minutes, reflecting the battery's endurance under load.
• Self Discharge: Less than 3% per month at 25°C, ideal for long-term storage solutions.
• Storage Time: GEL batteries can be stored for a maximum of 6 months at 25°C; charging is recommended before use for optimal performance.

Battery Parameters

The Whisper Power GEL Battery is equipped with outstanding performance features:

• Cranking Amps @ 25°C (5 seconds): 1450 A, providing robust starting capabilities for demanding applications.
• Cycle Life at 80% Depth of Discharge: 600 cycles, ensuring long-lasting performance even under heavy use.
• Internal Resistance (Approx.): 5.0 mΩ, contributing to efficient energy transfer and minimal power loss.

Conclusion

The Whisper Power 40290071 GEL Battery 12 V - 145 Ah is the perfect solution for anyone seeking a reliable, maintenance-free battery designed for heavy-duty and frequently used electrical systems. Its advanced design, exceptional performance characteristics, and long lifespan make it an excellent investment for a wide range of applications, ensuring you have the power you need when you need it most.