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Troubleshooting
3M™ Drive-Thru Systems Model G5 and Model XT-1
Operating Instructions
November 6 2014 – Revision 2.1
Page 59 of 77
Battery and Battery Charger Troubleshooting
XT
-
1 Battery and Battery Charger
Problem
Possible Cause
Solution
No lights come on when a battery is
inserted into charger.
Dirty contacts on battery or charger. Clean contacts on battery and charger.
No power to charger. Make sure power transformer is plugged
into charger and a “live” outlet.
Defective battery. Try a known good battery.
Defective charger. Call for authorized service.
Short battery life. Worn out batteries. Replace battery.
Wrong type of power transformer used for
charger.
Make sure power transformer is marked
“Secondary Voltage 14 VAC.”
The green light on the charger never comes
on.
Defective battery. Replace the battery.
G5 Battery Indicator Light Modes
Indicator
Mode Description
Green LEDs
The battery is out of the G5 battery Charger and the button has been
pressed and held down.
Each LED represents 25% charge.
A fully charged battery would have all 4 LEDS lit Green.
From the top (in the diagram on the left) if
4 successive LEDs lit green indicates a charge between 75% and 100%
3 successive LEDs lit green indicates a charge between 50% and 74%
2 LED lit green indicates a charge between 25% and 49%
1 LED lit green indicates a charge between 0% and 24%
One of the LED is flashing
Green
The battery is in the Charger and is currently charging
From the top:
1
st
LED flashing Green – Battery currently between 0 and 25% charge
2
nd
LED flashing Green – Battery currently between 26 and 50% charge
3
rd
LED flashing Green – Battery currently between 51 and 75% charge
4
th
LED flashing Green – Battery currently between 76 and 100% charge
Top and Bottom LEDs are
Green
Battery End of Life.
Replace the battery