2 - 4 WT4070/90 Wearable Terminal Integrator Guide
Figure 2-2    
Wearable Terminal and Spare Battery Charging
Battery Charging Indicators
The Single Slot USB cradle can charge the wearable terminal’s main battery and a spare battery simultaneously. 
The wearable terminal’s amber Charge Status LED indicates the status of the battery charging in the wearable 
terminal. See Table 1-2 on page 1-5 for charging status indications. The amber Spare Battery Charge Status LED 
on the cradle (see Figure 2-1 on page 2-3) indicates the status of the spare battery charging in the cradle. See 
Table 2-1 for charging status indications. The standard capacity batteries usually charge in less than four hours and 
the extended capacity battery usually charges in less than eight hours.
Spare Battery 
Charge Status LED
Table 2-1    
 Spare Battery Charge Status LED Indicator
Spare Battery LED
(on cradle)
Indication
Off No spare battery in well; spare battery not placed correctly; cradle is not powered.
Fast Blinking Amber Charging error:
•
Temperature is too low or too high.
•
Charging has gone on too long without completing (typically eight hours).
Slow Blinking Amber Spare battery is charging.
Solid Amber Charging complete.