Power consumption
Battery
:
The device will typically be powered by the shore power (230v) if the boat is located in a marina, but it
was designed to be able to run on a typical boat battery (12v/24v) for many months. This means that
boat owners on swing moorings, far from any shore power, can also take advantage of the features of
Yacht Sentinel.
Yacht Sentinel was designed using the very latest in low-power electronic components to reduce average
power consumption to an average of under 40mA. Yacht Sentinel can also operates up to 48 hours
without any external power supply through its own internal battery in case of emergency if the boat’s
battery is flat.
The internal battery may become fully discharged in the device is switched off for long periods of time.
When the device is next switched on it will enter charging mode to recharge the battery from the
external power supply
–
during this time the GPS and GSM are not operational. The Yacht Sentinel
automatically returns to normal operating mode once the battery reaches its threshold, typically after 2-3
hours.
The Yacht Sentinel is supplied with a battery supply lead, and there is an optional AC mains adaptor
power supply lead. Both supply lead connectors are supplied with the appropriate supply lead socket,
please do not remove the connectors from their leads as the connectors are designed to fit only the
supply socket. If you wish to use a mains supply please purchase the mains adaptor unit. Failure to follow
these guidelines may invalidate the warranty.
Power consumption:
The Yacht Sentinel requires a single power supply source in the range of 12v to 24v / 600mA. The
following table gives an overview of which features are available at each level of current:
Average Current
Available Functions
Up to 20mA
GSM is registered and on standby
GPS is on standby
Move alarm and tracking mode are disabled
Up to 25mA
GSM is registered and on standby
GPS is on standby and active periodically to update the GPS position
Tracking more is disabled
Move alarm is enabled
Up to 45mA
GSM is registered and on standby
GPS is fully powered and constantly updating the GPS position
Move alarm and tracking mode are enabled
Note: the stated power consumption is an average taken over 10 days. The measured current can vary
from the values in the table depending on the features that are enabled and the frequency of commands
and alerts sent.
