Palm Pre Is Beautiful to See and Use, Says eWEEK Labs - Battery Performance (
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Battery life could easily become a problem with the Pre, as the
relatively small 1,150 MAhr battery (the same as found in Palm’s tiny
Centro smartphone) needs to power the screen and those radios that want
to be consumed by bandwidth-hungry background applications.
Palm optimistically rates the Pre for 5 hours of talk time on the EVDO network.
I wanted to test how the Pre performed as a phone and as a
multipurpose smartphone. Therefore, I ran the Pre through a few
different talk-time battery scenarios to gauge the highs and lows of
the device’s power potential. I saw some wildly divergent results.
With a freshly restored phone, free from any running applications in
the background and not checking any e-mail accounts, I was able to
squeeze 5 hours and 41 minutes of talk time out of the device--well
above expectations. But with a slightly used device, checking two
e-mail accounts (one IMAP and one Exchange Active Sync) at default
intervals, the numbers were strikingly bad--only 2 hours and 54 minutes.
Palm sent over a list of steps users could take to conserve battery
usage. Among the tips listed, Palm recommended keeping the device out
of direct sunlight (it does run uncomfortably warm under ordinary
circumstances), changing default e-mail receive periods, lowering
default screen brightness and avoiding excessive use of IM services.
(Indeed, the Pre seems to have particular problems with battery life
when using AIM at this time, due to a known issue.)
During the battery testing process, I encountered a couple bugs of note.
First, when performing a full reset of the device to delete all
settings, accounts and applications, the restore process sometimes hung
midway through--showing only a background photo of a cloudy
day. Only after rebooting the device by holding down the power
button and sliding the ringer mute lever back and forth three times
would the process continue, only to enter an infinite loop when trying
to enter existing Palm Profile credentials.
Second, I discovered that in some cases, the low battery warning
encompassed the entire screen and locked in place, keeping me from
using the device even after the battery had fully recharged. The
only way I found to clear the error was to remove the battery from the
device--an action that will likely send shivers down the spine of
longtime PalmOS users.
Palm officials told me that both conditions are known bugs that will
be addressed via updates delivered over-the-air via the Pre’s
integrated Update application.
Senior Analyst Andrew Garcia can be reached at agarcia@eweek.com.