Hardware Configuration 59
E-EQ-HX2RG-B HX2 Reference Guide
Power Supply
The LXE HX2 uses two batteries for operation. A Lithium-Ion (Li-Ion) battery supplies power to
the HX2 only when tethered to the HX2. The main battery is either the 2000 mAh (Standard) or
the 4000 mAh (Extended) battery. Only one main battery can be tethered to the HX2 at a time.
The batteries can be hot-swapped after the HX2 is placed in Suspend mode.
The internal backup battery is a 50 mAh Nickel Cadmium (NiCad) battery. The backup battery is
recharged indirectly by the HX2 with a tethered battery. Recharging maintains the backup battery
near full charge at all times. When the backup battery is fully drained, it may take up to 5 hours to
recharge. The capability to discharge the backup battery is provided (see the HX2 Battery Control
Panel applet) to allow the user to condition the backup battery in order to recover full battery
capacity. The backup battery must be replaced by qualified service personnel. The backup battery
has a minimum 2 year service life.
When the HX2 is docked in a powered cradle, the HX2 receives USB/serial signals through the
cradle connector on the bottom of the HX2 and the cradle connector in the HX2 docking bay. The
HX2 must be firmly seated in the docking bay before USB/serial communication can occur. An
extra standard or extended Li-Ion battery pack can be recharged in the powered cradle while one
of the batteries is tethered to, and powering, the HX2. The standard battery is fully recharged in a
powered cradle in 4 hours. The extended battery is fully recharged in 8 hours.
Note: Docked HX2 -- An uninterrupted external power source (wall AC/DC adapter connected
to the HX2 cradle) transfers signals from the USB ports in the front of the cradle and the
serial port on the back of the cradle, to the HX2. HX2 frequent connection to a fully
charged tethered battery, is recommended to maintain backup battery charge status, as
the backup battery cannot be recharged by a dead or missing tethered battery.
The LXE HX2 Multi-Charger is designed to simultaneously charge up to six standard HX2
Rechargeable Lithium Ion Battery Packs in less than four hours, depending upon battery pack
temperature and ambient conditions. The Extended battery packs require less than 8 hours. The
HX2 Multi-Charger can charge up to five Standard and Extended batteries when they are not
tethered to the HX2. See section titled HX2 Multi-Charger.
