WhisperPower Equipment
GEL Battery 12 V - 225 Ah
12 V, 225 Ah (C20) deep-cycle VRLA GEL battery with 12-year float design life, 600 cycles at 80% DoD and 2250 A cranking current; maintenance free and air-transport approved.
Description
The WhisperPower GEL Battery 12 V – 225 Ah is a deep-cycle, maintenance-free VRLA (recombination) battery designed for frequent cyclic discharge under extreme temperatures, with a 12-year float design life.
Key features
- Deep-cycle long-life design for heavy-duty service
- Strong grid construction for frequent deep discharge
- Shock-resistant heavy-duty casing; limited ventilation needed
- Approved for air transport
Technical data
- Part number: 40290073
- Capacity: 225 Ah (C20), 209 Ah (10 h), 181 Ah (5 h)
- Nominal voltage: 12.0 VDC, 6 cells; M8 stainless steel terminals
- Float charge: 13.60–13.80 VDC; cyclic (absorption) charge 14.25–14.60 VDC at 25 °C
- Recommended charge current limit: 45.0 A
- Reserve: 450 min at 25 A
- Cranking: 2250 A (5 s, 25 °C)
- Cycle life: 600 at 80% DoD
- Self-discharge: <3% per month at 25 °C; internal resistance approx. 4.0 mΩ
- Dimensions: 522 x 240 x 219 mm; weight 65.0 kg
Specifications
| 40290073 | GEL Battery 12 V - 225 Ah |
|---|---|
| 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 |
| 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 | 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. |
| Cranking amps @ 25°C ( 5 sec) | 2250 A |
| Cycle life at 80% of D.O.D | 600 |
| Internal resistance Approx. | 4.0 mΩ |
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