Jabbla Tellus 4, Manual

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Tellus 4
21
6 - Tellus batteries and charging
When not plugged into a mains socket, the Telllus runs on its built-in battery.
The average battery life is around 500 charge/discharge cycles. You can
increase the life of your battery by allowing it to fully discharge before
recharging it again.
The Tellus battery can only be charged, when the ambient temperature is
between 5°C and max. 35°C. You can charge the battery by connecting the
Tellus to the mains adapter. Do not use another adapter than the one that is
delivered with the Tellus. Using another adapter could damage the internal
circuits or the battery.
Windows has a “Battery status meter” in the taskbar for monitoring the battery
capacity. When you place the mouse pointer on the battery symbol, the system
displays the battery status.
At the top side of the Tellus you will also find the battery indicators.
The battery indicator shows the state of charge of the installed battery.
Following description applies to both batteries.
The indicator is lit
in
blue battery is between 50 % and 100 % charged
orange battery is between 13 % and 49 % charged
red battery is between 0 % and 12 % charged