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Old 09-23-2009, 11:41 AM   #83
DaleDe
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Posts: 11,470
Karma: 13095790
Join Date: Aug 2007
Location: Grass Valley, CA
Device: EB 1150, EZ Reader, Literati, iPad 2 & Air 2, iPhone 7
Quote:
Originally Posted by Morlac View Post
I've noticed several times that if I leave my PocketPro on but unattended for a significant period (like an hour), it doesn't respond quite right when I come back When it happens, it's as if the keyboard is locked without actually showing the message -- pressing buttons makes the battery/power light flash as if it's thinking, but the screen does not change. Usually I end up having to turn the machine off and back on. One time I tried actually hitting the power button briefly, as if I was trying to turn the lock on/off. The lock message came up at that point, but I couldn't get it to unlock again. Still ended up having to turn the machine off. (This is with the original firmware update installed.)

So I've just been turning off the machine when not in use, too. Anybody else seeing odd behavior when leaving the PP unattended?

Also, if there actually is a problem when the battery drains completely, it could become almost unavoidable. After all, most batteries drain slowly even when not in use. So even with the reader switched off, if you just didn't use it for a long enough period and it was already relatively low on power, you could cross the threshold without knowing it.
I think there are probably two or more levels of internal battery saving shutdown. I have noticed that I sometimes have to hit the next button a couple or even 3 times to make the unit come to life but seldom, if ever, have to shut it down, unless it locks up (which is rare).

Battery depletion over time due to internal discharge is not quite the same as running the battery down with an external load. I would not expect internal discharge to destroy a battery but it may take a long time to get it back. If the unit is truly off and started with a full charge or nearly so I would expect more than 6 mos to possibly a year before a full discharge. Batteries are generally shipped with about a 40% charge or more to avoid problems with shelf life.

Dale
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