Battery Life Reading PDF vs. LRF/Epub

bookfanmd · 11-06-2009, 10:45 AM

Hi,

Does anyone feel that they get shorter battery life while reading PDF's vs. LRF or Epub? I've had my 505 since May and I love it. I also have a Kindle 2 and a Pocket Pro but the Sony is my favorite. I generally read at least 2 hours per day and frequently more. I buy a lot of books from Fictionwise in the .lit format and convert to LRF in Calibre (I don't use their LRF because I like a certain amount of white space and I can control that if I convert).

Anyway, I do have a good many books in DRM free PDF format also and I've been reading a lot of those lately. I just don't think I'm getting as much out of a battery charge as when I'm reading the other formats. I use the AC charger overnight and a day or so later I am down to 3 bars on the battery. A day after that it's half drained. I do tend to enlarge the font more on the PDFs so I'm getting fewer words per page so that may account for some of it.

I also seem to have more reboots when I'm reading PDF than LRF. I don't really have anything stored in the main memory, everthing is on the Memory stick and SD card. I load everthing to the Sony using Calibre.

Has anyone else noticed this happening?

Thanks.

vrf3 · 11-13-2009, 02:51 AM

Reading PDFs does drain the battery faster and using a memory or sd card does too. Also someone advised me that you get only "fully" charged when charging via USB to PC.

sony_fox · 11-13-2009, 04:12 AM

Definetly shorter battery life with PDF - even when I read at the default font. It's also slower to page turn, and generally more annoying all round. However when it's the only format available it's easier to read it, than faff around trying to get a decent conversion.

I can't confirm the issue with AC charging though, that seems about the same as USB to me.

bookfanmd · 11-13-2009, 10:19 AM

Thanks for the confirmation. I have never been successful in converting PDF's so I guess I'll just have to be aware of the battery issue if I'm reading a bunch of them in a row.

I did read here at MR that it's better to charge with the wall charger than the USB though. It's mentioned over and over again in the Sony forum, especially when people are having issues with the reader freezing up. I only use the USB when I'm loading books through Calibre.

Peto · 11-13-2009, 06:26 PM

I use the Reader exclusively for adapted PDFs. I read an average 2-3 hrs/day. I controlled my battery life for about 8 months, charging from a wall charger. Lasted an average 19 days per charge.

11-06-2009, 10:45 AM	#1
bookfanmd Addict Posts: 246 Karma: 4476 Join Date: May 2009 Location: US - Maryland Device: Sony 300/505/T1 Nook STWG Kobo Glo Kobo Aura HD KDX iPad1 K3 KT PW2	Battery Life Reading PDF vs. LRF/Epub Hi, Does anyone feel that they get shorter battery life while reading PDF's vs. LRF or Epub? I've had my 505 since May and I love it. I also have a Kindle 2 and a Pocket Pro but the Sony is my favorite. I generally read at least 2 hours per day and frequently more. I buy a lot of books from Fictionwise in the .lit format and convert to LRF in Calibre (I don't use their LRF because I like a certain amount of white space and I can control that if I convert). Anyway, I do have a good many books in DRM free PDF format also and I've been reading a lot of those lately. I just don't think I'm getting as much out of a battery charge as when I'm reading the other formats. I use the AC charger overnight and a day or so later I am down to 3 bars on the battery. A day after that it's half drained. I do tend to enlarge the font more on the PDFs so I'm getting fewer words per page so that may account for some of it. I also seem to have more reboots when I'm reading PDF than LRF. I don't really have anything stored in the main memory, everthing is on the Memory stick and SD card. I load everthing to the Sony using Calibre. Has anyone else noticed this happening? Thanks.

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11-13-2009, 02:51 AM	#2
vrf3 Member Posts: 17 Karma: 10 Join Date: Jul 2008 Device: Sony PRS-505	Reading PDFs does drain the battery faster and using a memory or sd card does too. Also someone advised me that you get only "fully" charged when charging via USB to PC.

11-13-2009, 04:12 AM	#3
sony_fox Zealot Posts: 109 Karma: 84 Join Date: Jun 2009 Location: Manchester Device: Kobo Auroa H2O	Definetly shorter battery life with PDF - even when I read at the default font. It's also slower to page turn, and generally more annoying all round. However when it's the only format available it's easier to read it, than faff around trying to get a decent conversion. I can't confirm the issue with AC charging though, that seems about the same as USB to me.

11-13-2009, 10:19 AM	#4
bookfanmd Addict Posts: 246 Karma: 4476 Join Date: May 2009 Location: US - Maryland Device: Sony 300/505/T1 Nook STWG Kobo Glo Kobo Aura HD KDX iPad1 K3 KT PW2	Thanks for the confirmation. I have never been successful in converting PDF's so I guess I'll just have to be aware of the battery issue if I'm reading a bunch of them in a row. I did read here at MR that it's better to charge with the wall charger than the USB though. It's mentioned over and over again in the Sony forum, especially when people are having issues with the reader freezing up. I only use the USB when I'm loading books through Calibre.

11-13-2009, 06:26 PM	#5
Peto Legal Alien Posts: 288 Karma: 105 Join Date: Jan 2008 Device: Sony PRS-505/T1/Kindle PW2	I use the Reader exclusively for adapted PDFs. I read an average 2-3 hrs/day. I controlled my battery life for about 8 months, charging from a wall charger. Lasted an average 19 days per charge.

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