Spectra Precision MobileMapper 20 - Manual (Page 20)

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At any time you can read more in detail the battery status by
pressing the Windows key and then selecting
Settings, System,
Power (see screen example).
When the remaining power drops below 10% of full charge
(orange area), you will see the message “Main Battery Low”
prompting you to replace or recharge the battery. Tap
Dismiss
in the task bar. You should consider replacing the battery for
a fresh one but you may still continue to use the receiver for
a while.
With only about 5% of remaining power (red area), a new
message will pop up: “Main Battery Very Low”. Tap
Dismiss in
the task bar to continue using the receiver. Spectra Precision
however recommends that you turn off the receiver and
replace the battery.
With only about 1% of remaining power, the receiver will
switch off, meaning the battery is no longer charged enough
to ensure proper operation of the receiver. Spectra Precision
recommends you do not go that far in the use of the internal
battery as there is a risk of losing part of your field data.
In case of long-time storage, remember Li-Ion batteries must
always be recharged regularly, about every six months. This is
to prevent irreversible damage of the batteries.
Battery Charging Scenarios
The battery can be charged in two different ways:
• From the power line, through the AC adapter and USB
cable provided. This configuration offers fast battery
charging, with around 700 mA of DC charging current.
• From an office computer connected to the receiver
through a USB line, using the same USB cable provided.
According to the USB 2.0 specification, the DC current
delivered will be limited to 500 mA, which means it will
Icon Meaning
Battery high: Remaining power ranges between approximately 75
and 100% of full charge.
Approx. 50-75% remaining
Approx 25-50% remaining
Approx. 10-25% remaining
Battery low: Remaining power is less than 5%.
Receiver powered from external source (AC adapter, computer via
USB line)