Whisper Power 40290061 - AGM Battery 12 V - 80 Ah

Whisper Power 40290061 - AGM Battery 12 V - 80 Ah

The Whisper Power 40290061 AGM Battery 12 V – 80 Ah is an economical and maintenance-free energy solution designed for durability and reliability. This battery leverages Valve Regulated Lead Acid (VRLA) technology, allowing for minimal ventilation requirements and the flexibility to be installed in any orientation without the need for maintenance. With a nominal voltage of 12 VDC and a capacity of 80 Ah, it is ideal for powering medium-sized inverters and serves as a complete power supply for DC installations. Additionally, this battery excels in various applications, including powering pumps and winches, and is well-suited for marine, mobile, and solar energy systems, as well as functioning effectively as a starter battery.

Key Features

• Maintenance-free design ensures effortless operation throughout its lifespan.
• Based on advanced VRLA technology, providing versatility in installation without requiring ventilation.
• Nominal capacity of 80 Ah, accommodating diverse power needs.
• Optimized for medium-sized inverters, ensuring stable power supply for complete DC setups.
• Perfect for powering pumps, winches, and suitable for marine, mobile, and solar applications.

Technical Specifications

Dimensions: Length x Width x Height - 350 x 167 x 180 mm (13.8" x 6.6" x 7.1" inch)

Weight: 24.0 kg (52.9 lb) ± 10%

Nominal Capacity: 80 Ah

Nominal Voltage: 12.0 VDC

Terminal Type: M6 stainless steel

Number of Cells: 6

Charge / Discharge Parameters

Constant Charge Voltage (IU, float): 13.60 .. 13.80 VDC at 25°C

Cyclic Charge Voltage (IUU, absorption): 14.25 .. 14.60 VDC at 25°C

Maximum Recommended Charge Current: 40 to 50% of nominal capacity

Temperature Ratio: -4 mV/cell/°C

Discharge Voltage: 1.75 VDC @ (A) ≤ 0.2°C; 1.70 VDC @ 0.2°C (A) ≤ 1.0°C

Full Discharge (100% DOD): 1.65 VDC @ (A) ≥ 1.0°C

Nominal Capacity at 25°C

• 20 Hours Discharge: 85.3 Ah
• 10 Hours Discharge: 80.0 Ah
• 5 Hours Discharge: 65.0 Ah

Peukeurt Coefficient: 1.21 < P < 1.24

Usage at 25 A Discharge: 146 minutes

Self Discharge: Less than 3% per month at 25°C

Storage Time: AGM batteries can be stored for up to 6 months at 25°C; it is recommended to charge before use.

Battery Parameters

Inrush Current at 25°C (5s): 800 A

Cyclic Life at 80% Discharge: 400 cycles

Internal Resistance (approx.): 5.5 mΩ