Charging The Battery; Maximizing The Battery Life; Managing The Battery Power - Lenovo ThinkPad X230 Tablet User Manual

Connecting the ac power adapter
To use the ac power adapter, do the following. Be sure to take these steps in the order in which they are
given here.
1. Connect the ac power adapter to the ac power connector of the computer.
2. Connect the power cord to the transformer pack.
3. Plug the power cord into an electrical outlet.
Tips on using the ac power adapter
• When the ac power adapter is not in use, disconnect it from the electrical outlet.
• Do not bind the power cord tightly around the ac power transformer pack when it is connected to the
transformer.
• Before you use the ac power adapter to charge the battery, make sure that its temperature is at least
10°C (50°F).
• You can charge the battery when the ac power adapter is connected to the computer and the battery is
installed. You need to charge it in any of the following conditions:
– When you purchase a new battery
– If the battery status indicator starts blinking
– If the battery has not been used for a long time

Charging the battery

When you check battery status and find that the percentage of power remaining is low or when the power
alarm alerts you that the remaining power is low, you need to charge your battery or replace it with a
charged battery.
If an ac outlet is convenient, plug the ac power adapter into it, and then insert the jack into the computer.
The battery will be fully charged in about 3 to 6 hours. The charging time is affected by the battery size
and the physical environment. You can check the battery charging status at any time by looking at the
battery meter icon at the Windows notification area.
Note: To increase the life of the battery, the computer does not start recharging the battery if the remaining
power is greater than 95%.

Maximizing the battery life

To maximize the life of the battery, do the following:
• Use the battery until the charge is completely depleted; that is, use the battery until the battery status
indicator starts blinking orange.
• Recharge the battery completely before using it. The battery is fully charged if the battery indicator shows
green when the ac power adapter is plugged in.
• Always use power-saving modes, screen blank, sleep, and hibernation.

Managing the battery power

With the Power Manager program, you can adjust your power settings to give you the best balance between
performance and power saving.
For instructions on accessing the Power Manager program, see "Accessing ThinkVantage programs on the
Windows 7 operating system" on page 13.
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User Guide