40290037 Front Side
40290037 Front Side

GEL Battery 2 V – 440 Ah

WhisperPower OPzV valve regulated batteries are ideally suited for applications with extended deep charge / discharge cycles. They are fully maintenance free. WhisperPower GEL batteries are constructed using tubular plate technology, wherein the electrolyte is contained in the GEL. They are widely used in emergency / back-up power supplies, marine and mobile battery banks and UPS installations.

Where to buy
  • Designed to last for over 10 years
  • Suitable for high charge current (50% of nominal capacity)
  • Ideal battery for large battery banks (600 to 8000 Ah)
  • Best option for intensively used heavy duty inverter(s)
  • Suitable for a large number of charge cycles (1200 to 3000 depending on dis- charge level)
  • 7 year warranty (Restricted to cycles)

Product specifications

ARTICLE NUMBER
40290037 GEL Battery 2 V - 440 Ah
TECHNICAL SPECIFICATIONS
Nominal capacity (C10, cel 1.80 V, 20°C) 440 Ah
Nominal voltage 2 VDC
Weight +/- 10% 33.0 kg
Dimensions lxwxh (mm) (excl. poles) 145 × 206 × 506
Terminal type 2×M8
CHARGE / DISCHARGE PARAMETERS
Bulk charge voltage (V/cel) 2.42 VDC at 20°C
Float voltage (V/cel) 2.25 VDC at 20°C
Initial charge current (A) 150 A
Temperature ratio -4mv/cel/°C
Recommended discharge voltage for 10 hours discharge (V/cel) 1,80 VDC/cel
Recommended discharge voltage for 1 hour discharge (V/cel) 1,65 VDC/cel
BATTERY PARAMETERS
Cyclic life at 80% discharge 1250
Internal resistance (approx.) 0,42mΩ
NOMINAL CAPACITY AT 20°C
NOMINAL CAPACITY AT 20°C UP TO 1.80 VDC/CE
10 hours discharge 440 Ah
5 hours discharge 370 Ah
1-hour discharge 184 Ah
Peukeurt Coefficient 1,21<P<1,23
Usage at 25 A discharge 15 h
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.
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WhisperPower develops and manufactures products and systems that meet the entire power needs of the marine, mobile or off-grid user.

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