Whisper Power 40290040 - GEL Battery 2 V - 750 Ah

Whisper Power 40290040 - GEL Battery 2 V - 750 Ah

The Whisper Power 40290040 - GEL Battery is a high-capacity 2-volt battery with a nominal capacity of 750 Ah, designed for applications that require extensive deep charge and discharge cycles. Utilizing OPzV valve-regulated technology, these maintenance-free GEL batteries feature innovative tubular plate technology that effectively encapsulates the electrolyte in a gel form. This design makes them highly reliable for use in emergency power systems, marine battery banks, and Uninterruptible Power Supply (UPS) installations.

Built to last over 10 years, this battery is suitable for high charge currents, allowing it to handle up to 50% of its nominal capacity. It is an excellent choice for large battery banks ranging from 600 to 8000 Ah and is specifically designed for heavy-duty inverters that are used intensively. With the capability to endure a significant number of charge cycles (between 1200 and 3000, depending on discharge levels), this battery is an investment in long-term energy reliability, backed by a 7-year warranty limited to cycles.

Key Features

• Designed for over 10 years of reliable service.
• Accommodates high charge currents (up to 50% of nominal capacity).
• Ideal for large battery banks (600 to 8000 Ah) for versatile applications.
• Perfect for heavily used heavy-duty inverters, ensuring consistent performance.
• Supports a large number of charge cycles (1200 to 3000), enhancing longevity.
• Comes with a 7-year warranty (restricted to cycles), ensuring peace of mind.

Technical Specifications

The Whisper Power 40290040 - GEL Battery features the following specifications:

• Dimensions: 145 × 206 × 667 mm (5.7" x 8.1" x 26.3" inch)
• Weight: 50.0 kg (110.2 lb) +/- 10%
• Nominal Capacity: 750 Ah (C10, cell 1.80 V, 20°C)
• Nominal Voltage: 2 VDC
• Terminal Type: 2 × M8

Charge / Discharge Parameters

• Bulk Charge Voltage (V/cell): 2.42 VDC at 20°C
• Float Voltage (V/cell): 2.25 VDC at 20°C
• Initial Charge Current: 240 A
• Temperature Ratio: -4 mV/cell/°C
• Recommended Discharge Voltage for 10 hours: 1.80 VDC/cell
• Recommended Discharge Voltage for 1 hour: 1.65 VDC/cell

Nominal Capacity at 20°C

• 10 hours discharge: 750 Ah
• 5 hours discharge: 650 Ah
• 1-hour discharge: 314 Ah
• Peukert Coefficient: 1.21 < P < 1.23
• Usage at 25 A discharge: 24 hours
• Self Discharge: Less than 3% per month at 20°C
• Storage Time: OpzV batteries can be stored for up to 6 months at 20°C; recommended to charge before use.

Battery Parameters

• Cyclic Life at 80% Discharge: 1250 cycles
• Internal Resistance: Approximately 0.35 mΩ

The Whisper Power 40290040 - GEL Battery stands out as an exceptional choice for anyone in need of a robust and efficient energy solution. With its advanced technology and extensive specifications, this battery is tailored to meet the demanding energy needs of various applications, ensuring reliability and long-term performance.