Acer Extensa 5220, Extensa 5620, Extensa 5620Z User Guide
The computer uses a battery pack that gives you long use between
Battery pack characteristics
The battery pack has the following characteristics:
Employs current battery technology standards.
Delivers a battery-low warning.
The battery is recharged whenever you connect the computer to the
AC adapter. Your computer supports charge-in-use, enabling you to
recharge the battery while you continue to operate the computer.
However, recharging with the computer turned off results in a
significantly faster charge time.
The battery will come in handy when you travel or during a power
failure. It is advisable to have an extra fully charged battery pack
available as backup. Contact your dealer for details on ordering a spare
Maximizing the battery's life
Like all other batteries, your computer's battery will degrade over
time. This means that the battery's performance will diminish with
time and use. To maximize your battery's life, you are advised to
adhere to the recommendations set out below.
Conditioning a new battery pack
Before you use a battery pack for the first time, there is a
"conditioning" process that you should follow:
Insert the new battery without turning the computer on.
Connect the AC adapter and fully charge the battery.
Disconnect the AC adapter.
Turn on the computer and operate using battery power.
Fully deplete the battery until the battery-low warning appears.
Reconnect the AC adapter and fully charge the battery again.