Mobile Computing

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Charging batteries

The main battery light:

Glows amber while the main battery is being charged.

Glows green when the main battery is fully charged. The main battery may not start charging immediately if:

The main battery is extremely hot or cold. To ensure that the main battery charges to its full capacity, wait until it reaches room temperature.

The main battery is almost completely discharged. Leave the power connected and the main battery should begin charging after a few minutes.

HINT: Once the main battery is fully charged, we recommend you operate your computer on battery power until the main battery discharges completely. Doing this extends the life of the main battery and helps ensure accurate monitoring of battery capacity.

Charging the RTC battery

The RTC battery provides power for the internal real-time clock and calendar. During normal use, the main battery keeps the RTC battery adequately charged. Occasionally, the RTC battery may lose its charge completely, especially if you have had the computer turned off for a long time.