Divide the capacity of the external battery by the power consumption of the central panel.
Power consumption of the central panel depends mostly on active communication modules. The average input current values in the table are valid for 12 V⎓ power supply and when up to 2 devices are connected to the hub or range extender.
| Central panel / range extender | Active communication modules | Average input current |
| Hub | GSM | 42 mA |
| Ethernet | 80 mA | |
| GSM+Ethernet | 90 mA | |
| Hub Plus | GSM | 35 mA |
| Ethernet | 72 mA | |
| GSM+Ethernet | 93 mA | |
| Wi-Fi | 20 mA | |
| Wi-Fi+GSM | 42 mA | |
| Wi-Fi+Ethernet | 80 mA | |
| Wi-Fi+GSM+Ethernet | 96 mA | |
| Hub 2 (2G) | GSM | 33 mA |
| Ethernet | 80 mA | |
| GSM+Ethernet | 86 mA | |
| Hub 2 (4G) | GSM | 40 mA |
| Ethernet | 78 mA | |
| GSM+Ethernet | 90 mA | |
| Hub 2 Plus | GSM | 60 mA |
| Ethernet | 90 mA | |
| GSM+Ethernet | 115 mA | |
| Wi-Fi | 45 mA | |
| Wi-Fi+GSM | 63 mA | |
| Wi-Fi+Ethernet | 95 mA | |
| Wi-Fi+GSM+Ethernet | 125 mA | |
| Hub Hybrid (2G)* | GSM | 54 mA |
| Ethernet | 85 mA | |
| GSM+Ethernet | 95 mA | |
| Hub Hybrid (4G)* | GSM | 49 mA |
| Ethernet | 85 mA | |
| GSM+Ethernet | 96 mA | |
| ReX | — | 20 mA |
| ReX 2 | without Ethernet | 20 mA |
| with Ethernet | 75 mA |
*Average current when no devices are connected to Hub Hybrid.
Note that every additional device connected to the hub may increase the hub power consumption.
For instance, when connected to a 40Ah battery, Hub 2 (2G) — with active GSM module only — will operate approximately 1200 hours (40Ah / 0.033A).
