Using Alternate Power Sources - Gateway E-155C Technical Reference Manual

Using alternate power sources

To extend battery life, use alternate power sources whenever
possible.
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CHAPTER 5: Managing Power
If traveling internationally, take electrical adapters. Save
the battery for times when you cannot use a power
adapter. If you plan on taking your AC power adapter,
also take a single-plug surge protector.
If you will have access to an EmPower™ in-flight power
receptacle, an automobile power outlet, or an automobile
cigarette lighter, use an airplane/ automobile power
adapter or power inverter. Save the battery for times
when you cannot use a power adapter.
To find AC power outlets in airports, look for them next
to support pillars, in large areas such as boarding gates,
and under banks of telephones.