Thread: Disabling Clock
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Old 02-11-2010, 12:34 PM   #13
fjtorres
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Join Date: May 2009
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Device: T100TA,PW2,PRS-T1,KT,FireHD 8.9,K2, PB360,BeBook One,Axim51v,TC1000
Quote:
Originally Posted by ascherjim View Post
I have now also decided to turn my PocketBook off when not using it to see whether I get longer battery life.
That is what I do.
I switch the Accelerometer and the status bar off, enable auto shut-off, and switch the PB360 off between reading sessions. Given the fast boot times its no big inconvenience. I get between 12 and 15 days day-to-day usage versus 14-20 days on the BeBook. On the other hand, the PB360 is much more stable at the OS level and at the application level.

What is going on is that the BeBook goes into a deeper sleep state than the PB360 in between page turns and the PB360 is still running when it is "sleeping" which is more PDA-ish than the BeBook. More importantly, the CPU runs at twice the clock rate. Given that both use the ARM architecture, the clock rate difference alone will ensure a longer battery life for tthe slower CPU.

Depending on the settings you can probably get as much as twice the battery life on the BeBook than on the PB360 and even in extreme low-power settings still get a few hours more on the BeBook.

It really comes down to how important extreme battery life is to you and whether you value such features as auto rotation, motion-triggered page turns, background pagination, and accurate table of contents and status bar page numbering.
<shrug>
In gadgets there are always trade offs; me, I prize stability and a better reading environment so a shorter battery life is no concern.

(But I did try different settings to see what the trade-off is. )
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