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.

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260 Ah, 12 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
40290064	AGM Battery 12 V -260 Ah

TECHNICAL SPECIFICATIONS
Length x width x height	520 x 268 x 220 mm (20.5" x 10.6" x 8.7" inch)
Weight ± 10%	74.0 kg (163.1 lb.)
Nominal capacity	260 Ah
C10* or C20	C10
Nominal voltage	12,0 VDC
Terminal type	M8 rvs
Number of cells	6

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 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
Nominal 25°C	UP TO 1.80 VDC/CEL
20 hours discharge	278.0 Ah
10 hours discharge	260.0 Ah
5 hours discharge	220.0 Ah
Peukeurt Coefficient	1.21<P<1.24
Usage at 25 A discharge	630 min
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, recommended to charge before use