Charging Batteries
Slide the battery into the charging bay until it locks into place. Charging begins
as soon as the batteries are inserted.
Charge Status LED
Each charger bay has an LED to indicate the status of the battery.
battery charging
Red
charging complete
Green
battery inserted incorrectly or battery depleted below
3.0 volts.
Off
charging stopped at reduced capacity (not less than
75% capacity) because the battery is too warm. To reach
100% capacity, a battery must be cooled to below 45°C.
Amber
Recovering a Battery from Deep Discharge
A deeply discharged battery is one that has been discharged to less than
3.0 volts. When the charger detects a deeply discharged battery, it automat-
ically enters recovery mode, which charges the battery using a reduced cur-
rent. A red LED indicates recovery mode. If recovery is successful, the
charger exits recovery mode and charges the battery to capacity. If the battery
cannot be recovered in less than 30 minutes, the red LED turns off and
charging stops.
Changing the Charger Module
The modular design of the charger housing accepts either the AXT901
handheld charging module or the AXT902 bodypack charging module. Use
the following instructions to change the charging module.
Caution!
Remove DC power and remove batteries when installing the
charging module.
1. Remove the 4 mounting screws that secure the charging module.
2. Pull the charger module to remove it from the housing.
3. Insert the replacement charger module into the housing (note the orien-
tation of the guide rails).
4. Insert the mounting screws (4 pieces) and tighten them to secure the
charging module.
Troubleshooting
DC power fault - check connection to power supply.
Ensure PS51 power supply is connected to an AC
power source.
Power LED off.
Battery is not fully inserted.
Charge status LED
does not illuminate.
Battery discharged below 3.0 volts. Try another bat-
tery.
Battery does not
charge
Specifications
Battery Type
Up to 2 rechargeable Li-Ion batteries(AXT910/AXT920/920SL)
Charge Time
50%=1 hour; 100%=3 hours
Operating Temperature Range
-18 to +40 degrees C (0 to 104 degrees F)
Battery Charging Temperature Range
0 to 60 degrees C (32 to 140 degrees F)
Storage Temperature Range
-29 to 74 degrees C (-20 to 165 degrees F), without batteries
Dimensions
45 mm x 86 mm x 114 mm (1.8 in. x 3.4 in. x 4.5 in.), H x W x D
Shure Incorporated
AXT903 AXT904
Portable Charging Station
2017/10/10
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