Getting Started 1 - 5
Figure 1-5
Insert Battery
Battery Charging
The main battery can be charged before insertion into the MC21XX or after it is installed. Use the Four-slot
Battery Charger to charge the main battery (out of the MC21XX) or the supplied power supply to charge the
main battery while it is installed in the MC21XX.
Before using the MC21XX for the first time, fully charge the main battery until the LED Indicator remains lit (see
Table 1-1 on page 1-6 for charge status indications). The battery fully charges in less than four hours.
The MC21XX is equipped with a memory backup battery which automatically charges from the main battery
whether or not the MC21XX is operating or is in suspend mode. The memory backup battery retains data in
memory for at least 30 minutes when the MC21XX’s main battery is removed or fully discharged. When the
MC21XX 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 MC21XX for
15 hours to ensure that the memory backup battery fully charges. If the main battery is removed from the
MC21XX 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.
Batteries must be charged within the 0° to +40° C (32° to 104° F) ambient temperature range.
To charge the MC21XX using the supplied power supply:
CAUTION Ensure that you follow the guidelines for battery safety described in Battery Safety Guidelines on page
7-2.
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.
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