User guide

WA_DEV_FEX20_UGD_002 Rev 004 March 08, 2011 109
Fastrack Xtend User Guide
Recommendations when Using the
Battery Accessory
15.2. LED Indicator
The charger operation status is defined by the bi-color LED indicator. Refer to the following table for
the operational details of the LED indicator.
Table 85. LED Indicator Status
LED Light Activity
Charger Status
Red LED ON
Battery level is below 3.6V
Green LED ON
Battery level is above 3.7V
LED OFF
DC-IN or USB is NOT connected
15.3. Charging Time
Refer to the table below for the charging times of the battery accessory.
Table 86. Battery Accessory Charging Time
Battery Type
Battery Capacity
Power Source
Charging Time
Ni-MH
500mAH
DC-IN
~14Hrs
USB
~16Hrs
15.3.1. Charging Specification
Charging can be done using either DC-IN or USB.
When using DC-IN charging, simply plug in the cable accessory with DC-IN (7.5V to 32V) to the
battery cable while attached to the battery accessory (see Figure 49 Battery with Charger Block
Diagram).
For USB charging, connect a USB cable to the Fastrack Xtend while connecting the battery accessory
via the battery cable.
If both the DC-IN and USB power source are connected, charging through DC-IN takes precedence if
the input USB voltage is 5V or below. Otherwise, charging via USB takes precedence.
Refer to the following table for charging specifications.
Table 87. Charging Specifications (Typical)
Power
Source
Input Voltage
Maximum
Charging Voltage
Charging Current
Maximum
Continuous
DC-IN
DC 7.5 – 32V
4.9V
128mA
20mA
USB
DC 5V
4.8V
118mA
14mA