16,000 pages on one charge? - Page 3

mtravellerh · 07-06-2010, 12:47 AM

Quote:

Originally Posted by adbosch

It has the option, so I would say it is designed to charge through USB. So it should work.

Only through a PC, not through a wall charger

kgn · 07-06-2010, 08:33 PM

Quote:

Originally Posted by mtravellerh

Only through a PC, not through a wall charger

There is no difference. Voltage is voltage - it does not matter where it comes from. It could be a solar battery pack, or a car cigarette lighter socket, or even a pedal powered generator.

The only caveat is that the PC has to generate enough current - which frankly some PCs do not. But if you are using a powered USB hub, then there should be no problem.

I have charged my PB302 via the USB socket (which the manual says you can do) from a solar battery pack, and a car booster battery pack. Also my PC (via a powered hub). All have worked ok.

While I have charged my PB302 via these methods - I have never left it on long enough to get the final green light saying it has been FULLY charged. But it does charge ok.

I still think that there is something funny about the charging system - it takes way too long even using the normal factory supplied charger.

crc · 07-06-2010, 10:29 PM

kgn: Some devices (e.g., the Sony readers) will only charge if hooked up to a computer. Plug one into a wall adapter and it will not charge.

adbosch · 07-06-2010, 11:41 PM

OK, I'll have to live with that (carrying 2 chargers i.o. one). It's a pity though.

kgn · 07-06-2010, 11:57 PM

Quote:

Originally Posted by crc

kgn: Some devices (e.g., the Sony readers) will only charge if hooked up to a computer. Plug one into a wall adapter and it will not charge.

It seems you might be right. Some devices use the USB D+/D- lines to switch from high current to low current charging. I have been able to charge my PB302 with a number of USB chargers with no problems. Perhaps some USB chargers do not control the D+/D- lines correctly??

I have used -
a cheap solar battery pack (bought from ebay). I use this mainly when camping. It charged my PB302 with no problems.

I also have used Motorola wall type USB charger - this is from my bluetooth headset. At home, I use this charger for all my USB chargeable 'toys'.

So it seems that as far as the PB302 at least is concerned, it can be charged with a generic USB charger. Perhaps it does not work with the one specific USB charger you tried - I suggest that you just try another USB charger. From personal experience, some at least do work.

MikeFromHC · 07-07-2010, 02:07 AM

Quote:

Originally Posted by adbosch

It has the option, so I would say it is designed to charge through USB. So it should work.

The manual says it can be done through the USB port connected to a computer.
If it does not do this and that's what you want then you have a defective product and should return it.

It also be that the device uses a non standard format and must use the supplied cable or that it requires that some data signal is needed to start the charging.

If it charges in the computer and not on the wall wart then you may need to carry an extra charger if you are going to be away from computer for a couple weeks.

brainycat · 07-07-2010, 03:13 PM

The USB spec is for 5.2v, I believe. Not all wallchargers are actually putting that much out. I have found blackberry wallchargers are reliable for charging any USB device.

adbosch · 07-08-2010, 01:36 AM

Connecting to internet/wifi drains the battery enormously and if the battery isn't 100% loaded, the device freezes easily. Internet connection is best realised when on external power.
Further changing settings is also a serious source of loss of charge.
I am now looking at the 16.000 page claim: just reading, not changing anything or doing anything else. Not sure yet, but I still have the impression that my Cybook Opus (claims 8.000 pages) lasts longer.
I have set the autorotation off; but I think touchscreen is a permanent power user also and a reason why the 302 will never do 16.000 pageturns simply because it has a bigger battery.

adbosch · 07-09-2010, 11:02 AM

Reading The Brothers Karamazov right now and am on page 615 of 2170 page(turns, according to FBReader). Battery is at 60%. At 40% the device will definitely start to freeze and garble. That means about 1500 pages per charge would be quite optimistic.
If one reads about 200 pages a day that would mean recharging once every week.
NB I have set screen rotation off and haven't used the device for anything else but reading without changing any setting and turning it off when not reading.

brainycat · 07-09-2010, 02:25 PM

I read about 1000 pages a week, make about 5 notes a day and have wifi on about once a week. I charge every week and half to two weeks, and have never gone below 2 bars on the indicator. I use the automatic rotation, but not for page turning.

adbosch · 07-09-2010, 02:56 PM

Quote:

Originally Posted by brainycat

I read about 1000 pages a week, make about 5 notes a day and have wifi on about once a week. I charge every week and half to two weeks, and have never gone below 2 bars on the indicator. I use the automatic rotation, but not for page turning.

Which is still far from 16.000 pageturns and even far from 8.000.

kgn · 07-09-2010, 05:21 PM

Quote:

Originally Posted by adbosch

Reading The Brothers Karamazov right now and am on page 615 of 2170 page(turns, according to FBReader). Battery is at 60%. At 40% the device will definitely start to freeze and garble. That means about 1500 pages per charge would be quite optimistic.

The freezing thing seems weird. My unit has NEVER frozen, nor garbled anything. I often go below 40%. Li-Ion batteries have a fairly flat discharge curve - but I guess your unit could be a bit worse than most. Perhaps you should replace the battery?

tvpupsik · 07-10-2010, 01:00 AM

adbosch, it looks like you might have a defective battery in your reader as kgn also suspected. Like brainycat I read about 1000 pages weekly with automatic rotation is off and without doing anything with wifi, notes, etc - just plain reading 98% of the time. I haven't charged the reader for about 2.5 weeks (2000 - 2500 pages total) and only one bar is gone so far.
After reading this topic I became curios and kind of trying to see how long the buttery will last in mine PB302

adbosch · 07-10-2010, 01:26 AM

I suppose the battery is user-replaceable? Where can I get one (in the Netherlands or Germany/Luxembourg)?

Ulli · 07-10-2010, 05:59 AM

Write an E-Mail with the description of your problem (perhaps also a link to this topic and your nickname on this forum) to service@pocketbook.de

07-09-2010, 11:02 AM	#39
adbosch Addict Posts: 299 Karma: 511516 Join Date: Jun 2004 Device: Kobo Forma; Pocketbook Color 633	Reading The Brothers Karamazov right now and am on page 615 of 2170 page(turns, according to FBReader). Battery is at 60%. At 40% the device will definitely start to freeze and garble. That means about 1500 pages per charge would be quite optimistic. If one reads about 200 pages a day that would mean recharging once every week. NB I have set screen rotation off and haven't used the device for anything else but reading without changing any setting and turning it off when not reading. Last edited by adbosch; 07-09-2010 at 01:47 PM.

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07-06-2010, 10:29 PM	#33
crc unknown Posts: 57 Karma: 38 Join Date: May 2008 Location: Oakford, PA, USA Device: Kindle Voyage	kgn: Some devices (e.g., the Sony readers) will only charge if hooked up to a computer. Plug one into a wall adapter and it will not charge.

07-06-2010, 11:41 PM	#34
adbosch Addict Posts: 299 Karma: 511516 Join Date: Jun 2004 Device: Kobo Forma; Pocketbook Color 633	OK, I'll have to live with that (carrying 2 chargers i.o. one). It's a pity though.

07-07-2010, 03:13 PM	#37
brainycat PocketBook 302 FTW! Posts: 141 Karma: 398 Join Date: Oct 2009 Location: Seattle Device: Pocketbook 302, upgraded from PRS-600	The USB spec is for 5.2v, I believe. Not all wallchargers are actually putting that much out. I have found blackberry wallchargers are reliable for charging any USB device.

07-08-2010, 01:36 AM	#38
adbosch Addict Posts: 299 Karma: 511516 Join Date: Jun 2004 Device: Kobo Forma; Pocketbook Color 633	Connecting to internet/wifi drains the battery enormously and if the battery isn't 100% loaded, the device freezes easily. Internet connection is best realised when on external power. Further changing settings is also a serious source of loss of charge. I am now looking at the 16.000 page claim: just reading, not changing anything or doing anything else. Not sure yet, but I still have the impression that my Cybook Opus (claims 8.000 pages) lasts longer. I have set the autorotation off; but I think touchscreen is a permanent power user also and a reason why the 302 will never do 16.000 pageturns simply because it has a bigger battery.

07-09-2010, 02:25 PM	#40
brainycat PocketBook 302 FTW! Posts: 141 Karma: 398 Join Date: Oct 2009 Location: Seattle Device: Pocketbook 302, upgraded from PRS-600	I read about 1000 pages a week, make about 5 notes a day and have wifi on about once a week. I charge every week and half to two weeks, and have never gone below 2 bars on the indicator. I use the automatic rotation, but not for page turning.

07-10-2010, 01:00 AM	#43
tvpupsik Addict Posts: 203 Karma: 502 Join Date: Mar 2010 Location: St. Louis, MO Device: PB 360, PB 602, PB IQ	adbosch, it looks like you might have a defective battery in your reader as kgn also suspected. Like brainycat I read about 1000 pages weekly with automatic rotation is off and without doing anything with wifi, notes, etc - just plain reading 98% of the time. I haven't charged the reader for about 2.5 weeks (2000 - 2500 pages total) and only one bar is gone so far. After reading this topic I became curios and kind of trying to see how long the buttery will last in mine PB302

07-10-2010, 01:26 AM	#44
adbosch Addict Posts: 299 Karma: 511516 Join Date: Jun 2004 Device: Kobo Forma; Pocketbook Color 633	I suppose the battery is user-replaceable? Where can I get one (in the Netherlands or Germany/Luxembourg)?

07-10-2010, 05:59 AM	#45
Ulli (-: Posts: 667 Karma: 1310 Join Date: Nov 2009 Location: Frankonia Device: PocketBook 360°,302	Write an E-Mail with the description of your problem (perhaps also a link to this topic and your nickname on this forum) to service@pocketbook.de

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