Motorola MT2070 User's Guide Page 40

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1 - 14 Symbol MT2070/MT2090 User Guide
Battery Charging
Charge the device using a cradle or host interface cable, or remove and charge the Li-ion battery using a spare
battery charger.
Before using the device for the first time, fully charge the Li-ion battery until the green LED on the device goes off
(seeTable 3-2 on page 3-3). The battery fully charges in less than four hours, when the device is placed in a cradle
with a 12V supply connected.
This device does not have a backup battery. Any data in RAM is lost when the battery is removed. However, the
real-time clock is maintained for a period of 20 minutes during a battery change.
Use the following accessories to charge the Li-ion battery:
Cradles:
Single Slot USB Charge Only Cradle - with power supply for fast charging
Single Slot Multi-interface Bluetooth Cradle - with power supply; powered from host (slow charge)
Four Slot Charge Only Cradle - with power supply
Four Slot Ethernet Cradle - with power supply.
Spare Battery Charger:
Four Slot Battery Charger - with power supply.
Cables (and a power supply):
USB Client Charge Cable
RS-232 Serial Cable - with power supply.
Use a cradle or a charge cable to charge the Li-ion battery in the device. Use either the four slot cradle or four slot
battery charger to charge up to four spare batteries. The charge cable requires a Symbol/Motorola approved power
supply.
Cradles
Insert the device into a cradle. See Chapter 13, Accessories for accessory setup. The device starts to charge
automatically. The charge LED on the device flashes during charging and goes off when the battery is fully
charged. See Table 13-2 for charging indications.
Cables
Connect a charge cable to the appropriate power source and connect the other end of the charge cable to
the device. See Chapter 13, Accessories for accessory setup. The device starts to charge automatically. The
charge LED on the device flashes during charging and goes off when the battery is fully charged. See Table
13-2 for charging indications.
See Table 3-2 on page 3-3 for detailed LED descriptions.
IMPORTANT 1) If the host PC is powered off discharged, for example every night, the device continues to operate
from its battery until the battery is totally drained. Upon restart of the host PC, the device may not
boot. The battery has to charge at a reduced charge rate until the battery acquires sufficient charge
to boot the device. This can take up to 2 hours, depending on the level of discharge.
2) If the battery is completely discharged, and the unit is powered from a USB or RS232 cable, it
may take up to two hours for the unit to power up.There is no indication to the user of this condition
and it may appear that the unit is not charging and/or not working correctly. However, if the unit is
placed in an STB2000 or STB2078 cradle with the 12V power supply power up is immediate.
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