User's Manual

18
Charging the Internal UIT Battery and External Battery Pack
It takes approximately 4 hours for a completely drained internal battery to charge to 90%
capacity from a powered desktop cradle. Then it will switch to trickle charging which takes
about additional 5 hours to charge to 100%. The UIT can be left on desktop cradle as long
as desired.
After fully charged, an internal battery can last up to 12 hours in stand-by mode. Battery life
is dependent on use but an internal battery can last between 3 – 12 hours. Max battery
capacity is 2200mAh.
It takes approximately 5 hours to charge the external battery pack to 90% capacity and
another 5 hours of trickle charging. Battery capacity in external battery pack is 6600mAh.
After fully charged, an external battery can last up to 6 months in stand by mode. It takes
approximately 6 - 7 hours for a fully charged external battery to charge a drained internal
battery to 90% of its capacity.
An UIT can run between 15 – ** hours when a fully charged external battery is attached
to the UIT with a fully charged internal battery. Once again, battery life is dependent on
the use of the UIT.
The UIT internal and external batteries are Lithium Ion and have none of the memory
effects seen in rechargeable Ni-Cd batteries. “Memory effect” refers to the reduced
discharge capacity seen in rechargeable batteries when they are repeatedly discharged
incompletely and then recharged.
When the UIT is placed in either the Desktop Download/Charging Cradle or the Vehicle
Charging Cradle it will begin the charging cycle.
The status of the UIT internal battery can be checked by selecting the Battery Health
program. This is accessed from the UIT graphical user interface, via the Microsoft®
Windows CE “Start” menu by selecting the “Batt Stat” function.