40290064 Front1
Characteristics2
Characteristics1
Characteristics3
40290064 Front1
Characteristics2
Characteristics1
Characteristics3

AGM Battery 12 V – 260 Ah

The WhisperPower AGM Battery 12 V – 260 Ah is the most economical, maintenance-free battery designed for long life. WhisperPower 12 V – 260 Ah AGM batteries are based on VRLA technology (Valve Regulated Lead Acid), meaning they require little ventilation, do not have to be positioned upright and do not require any maintenance.

  • 80 Ah, 12,0 VDC
  • Suitable for medium sized inverters
  • Power supply for entire DC installation
  • Powering pumps and winches
  • Suitable for marine, mobile and solar energy systems- and as a starter battery.

Product specifications

ARTICLE NUMBER
40290064AGM Battery 12 V -260 Ah
TECHNICAL SPECIFICATIONS
Dimensions L x W x H (mm) (excl. poles)520 x 268 x 220
Weight ± 10%74.0 kg
Nominal capacity260 Ah
C10* or C20C10
Nominal voltage12,0 VDC
Terminal typeM8 rvs
Number of cells6
CHARGE / DISCHARGE PARAMETERS
Constant charge voltage (IU, float)13.60 .. 13.80 VDC at 25oC
Cyclic charge voltage (IUU, absorption)14.25 .. 14.60 VDC at 25oC
Maximum recommended charge current (higher possible)40 to 50% of nominal capacity
Temperature ratio-4mv/cel/°C
Discharge voltage1.75 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
Nominal 25°CUP TO 1.80 VDC/CEL
20 hours discharge278.0 Ah
10 hours discharge260.0 Ah
5 hours discharge220.0 Ah
Peukeurt Coefficient1.21<P<1.24
Usage at 25 A discharge630 min
Self dischargeLess than 3% per month at 25°C
Storage timeAGM batteries can be stored for up to 6 months at 25°C, recommended to charge before use
BATTERY PARAMETERS
Inrush current at 25°C (5s)2600 A
Cyclic life at 80% discharge400
Internal resistance (approx.)3,5m Ω