Description
Deep cycle GEL battery with 12 years floating design life. Superior design for frequent cyclic discharge applications under extreme temperatures. Strong grid construction to ensure reliability under frequent deep discharge use.
Technical data
| Manufacturer | WhisperPower |
| Article number | 40290073 |
| Length x width x height | 522 x 240 x 219 mm (20.6" x 9.5" x 8.6" inch) |
| Weight +/- 10% | 65.0 kg (143.3 lb.) |
| Nominal capacity (C20) | 225 Ah |
| Nominal voltage | 12.0 VDC |
| Terminal type | M8 stainless steel |
| Number of cells | 6 |
| Charge / discharge parameters | |
| Constant voltage Charging (IU, float) | 13.60 to 13.80 VDC @ 25C |
| Cyclic Charging ( IUU, absorption) | 14.25 to 14.60 VDC @ 25 C |
| Recommended charging current limit (higher possible) | 45.0 A |
| Temperature cut-off ratio | 4mv/cell/°C |
| Discharge cut off voltage 100% depth of discharge d.o.d. | 1.75 VDC @ (A) <= 0.2 C1.70 VDC @ 0.2 C (A) <= 1.0 C1.65 VDC @ (A) >= 1.0 C |
| Rated capacity @ 25°c | |
| Rated Capacity @ 25°C | rate to 1.80 VDC per cell |
| 20 hrs discharge | 225.0 Ah |
| 10 hrs discharge | 209.0 Ah |
| 5 hrs discharge | 181.0 Ah |
| Peukert Coefficient | 1.21<P<1.24 |
| Time reserve minutes 25 amps discharge | 450 minutes |
| Self discharge | Less than 3% per month @ 25°C |
| Storage time | GEL-power batteries can be stored for maximum6 months at 25°C, Charging recommended before using. |
| Battery parameters | |
| Cranking amps @ 25°C ( 5 sec) | 2250 A |
| Cycle life at 80% of D.O.D | 600 |
| Internal resistance Approx. | 4.0 mΩ |
Documents: Datasheet
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