Description
WhisperPower 2V – 1650 Ah (OPzV valve regulated) batteries are perfect for applications needing prolonged deep charge and discharge cycles. Fully maintenance-free, these GEL batteries use tubular plate technology to keep the electrolyte contained in the GEL. They are commonly employed in emergency power supplies, marine and mobile battery banks, and UPS systems.
Technical data
| Manufacturer | WhisperPower |
| Article number | 40290044 |
| Length x width x height | 275 x 210 x 820 mm (10.8" x 8.3" x 32.3" inch) |
| Weight +/- 10% | 120 kg (264.6 lb.) |
| Nominal capacity (C10, cel 1.80 V, 20°C) | 1650 Ah |
| Nominal voltage | 2 VDC |
| Terminal type | 4 × 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) | 600 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°C | UP TO 1.80 VDC/CE |
| 10 hours discharge | 1650 Ah |
| 5 hours discharge | 1355 Ah |
| 1-hour discharge | 647 Ah |
| Peukeurt Coefficient | 1,21<P<1,23 |
| Usage at 25 A discharge | 60 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. |
| Battery parameters | |
| Cyclic life at 80% discharge | 1250 |
| Internal resistance (approx.) | 0.19 mΩ |
Documents: Datasheet
Need help choosing the right solution or with installation? Write to us – we are happy to help.