Rechargeable Battery
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2021
– Valeport Ltd
Page | 12
5 Rechargeable Battery
The SWiFT is fitted with a rechargeable battery with the following characteristics:
Battery:
Internal, Rechargeable Lithium Ion Battery Pack
Capacity
Total Capacity 12Ah. Available Capacity: 10 Ah
Charging:
USB
1.5A Charger that is supplied
0.5A Laptop USB port
Battery Life:
Up to 5 continuous operation from a fully charged pack (standard SWiFT)
As the battery becomes discharged the SWiFT status LEDs will change during operation:
Solid Green
More than 24 hours
Solid Amber
less than 24 hours but more than 12 hours
Solid Red
Less than 12 operational hours
The actual number of operational hours can vary from one project scenario to another and if a
SWiFT plus is being used. Environmental factors have to be considered as well as the age of the
battery, the time the SWiFT is switched on as well as the time in the water all have to be taken into
consideration.
Below is a table of the current drawn by the SWiFT in various modes:
Mode
Bluetooth
GPS
Current mA
Running on the surface
ON
ON
83
Running on the surface
Connected
ON
102
Interrupted
Connected
ON
100
Running sub surface
OFF
OFF
55
Turned off
OFF
OFF
0.5
Bluetooth Sleep
ON
OFF
7
SWiFTplus
Mode
Bluetooth
GPS
Current mA
Running on the surface
ON
ON
156
Running on the surface
Connected
ON
156
Interrupted
Connected
ON
155
Running sub surface
OFF
OFF
122
Turned off
OFF
OFF
0.5
Bluetooth Sleep
ON
OFF
7
Note:
•
Current is still drawn when the SWiFT is switched off or in Sleep mode
•
The current drawn is considerably less when sub surface, recording sound velocity,
pressure and temperature data than on the surface when GPS and Bluetooth are active
•
GPS and Bluetooth are disabled as the pressure reading passes a trigger depth
