In case of any emergency, a fully-charged spare battery is the best accessory to have.
Charge your device using standard 12V car cigarette lighter socket.
For improved satellite signal reception when used on the move (e.g. in boats or cars) or in areas at the edge of the coverage. Simply connect the antenna cable (5m length) with the device and place the magnetic mounted antenna (IP66 rating) in a position with direct line of sight to the satellite.
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