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Eversense XL CGM User Guide
17
Smart Transmitter Battery and
Charging
Q: How long does a fully charged smart transmitter
battery last?
A: A fully charged smart transmitter battery lasts
approximately 24 to 36 hours.
Q: How long does it take to charge a smart transmitter?
A: It takes 15 minutes to fully charge a smart transmitter
when plugged into a wall outlet. It may take longer if
charging via a computer USB port or when the battery
is empty.
Q: What happens if my smart transmitter battery is
completely drained?
A: No glucose readings will be displayed. Always charge
immediately when the smart transmitter battery is
completely drained.
Q: My smart transmitter powered o by itself. Why?
A: The system has a power saving mode. Once a smart
transmitter and sensor are linked, if the smart
transmitter is removed from over the insertion site for
longer than 15 minutes, or when the system displays a
No Sensor Detected alert for longer than 15 minutes,
the smart transmitter will turn o to conserve battery
power. To turn on the smart transmitter, press and
hold the button for about 5 seconds.
Q: How do I check the smart transmitter battery status?
A: There are three ways to check battery status:
1. Tap Menu > About > My Transmitter.
Scroll down to the Battery Level line that indicates
amount of battery power left.
2. Check the battery symbol in the upper right corner
on the MY GLUCOSE screen. A red battery icon
indicates the smart transmitter battery is empty.
3. Power ON the smart transmitter. Press and release the
smart transmitter power button. An orange LED on
the smart transmitter indicates low battery. A green
LED indicates the battery is at least 10% charged.
Q: On the About > My Transmitter page, the
battery level shows 65% and then drops to 35%.
Why is that?
A: The rate battery levels discharge varies widely based
on use; the same battery model in two devices will not
discharge at the same rate. This is why we show battery
level indicators on this screen in large increments:
100%, 65%, 35%, 10% and 0%. Our testing shows that
the “Low Battery” alert is triggered consistently at the
point the smart transmitter still has approximately
2 hours of power left (at about the 10% indicator level).
It is important to charge your battery when you receive
the “Low Battery” alert.
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