Motorola MC909X, Integrator Manual

Page: 31 / 322

Getting Started 1 - 7
Figure 1-4 Installing the Main Battery
Charging the Battery
Charging the Main Battery and Memory Backup Battery
Before using the mobile computer for the first time, charge the main battery until the amber charge indicator light
remains lit (see
Table 1-2 on page 1-8 for charge status indications). The main battery fully charges in less than
four hours. The mobile computer can be charged using a cradle, the CAM, or the MSR with the appropriate power
supply.
The mobile computer is also equipped with a memory backup battery which automatically charges from the main
battery whether or not the mobile computer is operating or is in suspend mode. The memory backup battery retains
data in memory for at least 30 minutes when the mobile computer's main battery is removed or fully discharged.
When the mobile computer is used for the first time or after the memory backup battery has fully discharged, the
memory backup battery requires approximately 15 hours to fully charge. Do not remove the main battery from the
mobile computer for 15 hours to ensure that the memory backup battery fully charges. If the main battery is
removed from the mobile computer or the main battery is fully discharged, the memory backup battery completely
discharges in several hours.
When the main battery reaches a very low battery state, the combination of main battery and backup battery
retains data in memory for at least 72 hours.
Use the following to charge batteries:
•
Cradles: The mobile computer slips into the cradles for charging the battery in the mobile computer (and
spare batteries, where applicable).
• Single Slot Serial/USB Cradle.
• Four Slot Ethernet Cradle and Four Slot Charge Only Cradles.
CAUTION
Ensure that you follow the guidelines for battery safety described in Battery Safety Guidelines on page
10-1 .
NOTE Do not remove the main battery within the first 15 hours of use. If the main battery is removed before the
backup battery is fully charged, data may be lost.