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VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
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18
SNYPER-LTE Graphyte
User Manual
Download Latest Edition
Rev 1.7
Charging and Battery Status
Figure 16. Charging and battery status
Charging and battery status bar:
A fully charged device is indicated by a green bar extending across the top
of the display.
As the device is used and the battery discharges, the battery status bar will
shrink to the right of the display and change from green, to yellow, to red.
Recharging is recommended once red bars are displayed on the device
battery status bar.
If the device drops below allowable low battery usage the unit will switch
off and charging will be required.
Approximately 4 - 6 hours are needed to fully charge a SNYPER with a at battery.
The device will be charged when it is plugged into a USB power source - the supplied
AC adaptor. Other USB ports may be used to charge and power the SNYPER. The
SNYPER is classed as a High-power USB device and is a 500 mA load. Some USB
ports such as those found on laptops are designed to power low-power USB devices
and will only provide 100 mA. Additionally, unpowered USB hubs will share the
upstream USB power between all connected devices. The SNYPER will still charge in
these circumstances, but will take proportionally longer to reach full charge.
Battery charging is indicated by a ‘+’ sign on the right of the battery status bar and
the red charge status LED turning on. To maximise the charge rate of the SNYPER
Graphyte, turn it off while charging. The LED indication will still operate and will turn
off when fully charged.
Battery status bar
NOTE: To protect the battery from damage, charging is only allowed when the temperature is between +10 and +45°C. If
a temperature fault is indicated, allow the battery temperature to settle naturally to the safe charging temperature range. Do
not attempt to speed this process up by deliberately heating or cooling the SNYPER Graphyte as this may cause damage.
Important: If a battery fault is indicated, please do not continue to charge the SNYPER Graphyte.
Please contact Siretta for repair instructions.
Charge status LED
Status LED Indication
Charging in progress On
Charging off Off
Temperature fault Slow blink at 1.5/Sec
Battery fault Fast blink at 6.1/Sec
Table 5. Charge status indication
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