40290038 Front Side
40290038 Front Side

GEL Battery 2 V – 525 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.

  • 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
40290038GEL Battery 2 V - 525 Ah
TECHNICAL SPECIFICATIONS
Nominal capacity (C10, cel 1.80 V, 20°C)525 Ah
Nominal voltage2 VDC
Weight +/- 10%39.0 kg
Dimensions lxwxh (mm) (excl. poles)166 × 206 × 506
Terminal type2×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)200 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
NOMINAL CAPACITY AT 20°C
NOMINAL CAPACITY AT 20°CUP TO 1.80 VDC/CE
10 hours discharge525 Ah
5 hours discharge450 Ah
1-hour discharge220 Ah
Peukeurt Coefficient1,21<P<1,23
Usage at 25 A discharge18 h
Self dischargeLess than 3% per month at 20°C
Storage timeOpzV batteries can be stored for up to 6 months at 20°C, recommended to charge before use.
BATTERY PARAMETERS
Cyclic life at 80% discharge1250
Internal resistance (approx.)0.38 mΩ