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Color
State
Error LED amber flashing
Charging stopped. To resume charging, try these solutions:
1. Check that the battery contacts are clean and undamaged. If
contacts are dirty or damaged, the charger might not detect the
batteries.
2. Check the temperature. If the battery temperature is above 60°C
or below 0°C, the error LED flashes.
3.
Contact Shure service. Battery may be discharged beyond re
covery or have internal problems. Replace battery.
• Error LED amber steady on 4 charg
ers
•
Error LED amber flashing on all
chargers
Too many chargers (more than 4) are connected to each other. Re
move additional chargers.
•
Charge status LED red
•
Error LED amber flashing
Battery too warm. Charging stops at 80% of full capacity. Allow bat
tery to cool below 45°C to resume charging to full capacity.
•
Charge status LED green
•
Error LED amber flashing
Charging complete, but battery temperature is too warm or cold
(over 60°C or below 0°C).
Power LED red
Charger is in storage mode. Batteries are charging or discharging
to storage voltage.
•
Power LED red
•
Charge status LED amber
Batteries are ready for storage.
•
Power LED red
•
Charge status LED red flashing
Batteries are approaching storage voltage.
Power LED white flashing
Charger firmware is being updated.
All LEDs flashing
Hardware identification.
Tip:
Wireless Workbench provides more detailed battery status information, including temperature and overall
health.
Storage Mode
To store batteries for longer than 8 days, use the charger's storage mode. Each battery will be charged or dis
charged to 3.8 volts, which is ideal for long-term storage.