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SanDisk User
Posts: 79
Registered: ‎01-21-2009

Re: Critical battery issues

[ Edited ]
well, the clip+ is already 3 months old, hope the fix comes next month before general worldwide product dispatch.
Message Edited by icsterm on 11-28-2009 04:41 PM
Clip 8GB v2 Silver / Clip+ 8GB Black + Fiio E5 + KSC75 + IE8
SanDisk User
Posts: 79
Registered: ‎01-21-2009

Re: Critical battery issues

[ Edited ]
Problem still here, i can get 8-9 hours of playback using mp3, it just dies at ~40% battery level. This is certainly a firmware bug, if no software update comes soon enough i'm selling the player and giving up Sansa because they don't even bother answering on any forum or even confirming the bugs. Too bad for them, i love the SQ but that's it.
Message Edited by icsterm on 12-09-2009 01:33 PM
Clip 8GB v2 Silver / Clip+ 8GB Black + Fiio E5 + KSC75 + IE8
SanDisk User
Posts: 31
Registered: ‎11-28-2009

Re: Critical battery issues

There are two issues with battery life / indication. I have the joy of suffering both (nash).

 

1) the battery gets to 50%, then within 30mins the unit is dead. Most likely a firmware / calibration issue so should be fixable. If it's a battery / hardware issue then the units could run into big problems down the line. Li-* can be a funny technology, especially if allowed to go fully flat. Dead has a very literal meaning.

 

2) Ogg Vorbis playback has screwed the pooch. This is also a problem on the Nokia N900 super phone (oops, smart phone / *nix pocket PC)

provided the post isn't sanitized the following is a bit of research done by someone else:

tuomas.kulve.fi/blog/2009/11/07/n900-battery-duration-ogg-vs-mp3/

Search 'n900 nokia libvorbis ffmpeg' under your favourite brand search engine and it should be the first hit.

 

This is pretty promising as it states that using the libvorbis decoder you lose about 40% battery life, using ffmpegs vorbis decoder you gain about 2% (lets call it equal with mp3 for the sake of argument).

It being promising is based on Sandisk being hoopy froods who really know where their towels are at and get their fingers out, suck some nourishment, and fix the decoder.  And, if that doesn't make sense, well never mind.

 

I've just done a test against Meat Loaf Bat 1, Bat 2, and the mild insult to Jim Steinman - Bat 3.

Vorbis encoded to 192 VBR (q6)

MP3 encoded to 128 VBR (v5)

MP3 encoded to 192 VBR (v2)

 

Playing the MP3 128 kb/s tracks (admittedly just the tracks in alphabet order as the playlists & tags were AWOL) I used a whole 2% battery after 9 tracks (~40 mins playback). Taking the units is dead at 50% into account this does actually equate to ~15hr playback (adjust 2% to 4 - 5 % battery use).

 

Playing the Vorbis back I lose about 2% per track (~6 mins) which comes to around 3 hours (I'm getting about 4.5hrs total playback time in previous straight runs). So this actually tallies. Yep, my whole collection is in vorbis, and I ain't switching to MP3. Na, ah. They support vorbis on the tin, so they can properly support it in the device.

 

I already have a complaint / whining about product session open with Sandisk so this will be passed on to them (I will also start an Ogg specific thread to see what other people find).

SanDisk Guru
Posts: 16,315
Registered: ‎04-17-2008

Re: Critical battery issues


icsterm wrote:
Problem still here, i can get 8-9 hours of playback using mp3, it just dies at ~40% battery level. This is certainly a firmware bug, if no software update comes soon enough i'm selling the player and giving up Sansa because they don't even bother answering on any forum or even confirming the bugs. Too bad for them, i love the SQ but that's it.

I still think it's a problem with your individual unit, not all. Maybe I'm just lucky, but I got 11 hours, 20 minutes out of a full battery charge playing 100% FLAC files at approx. 70-90% volume. I haven't completed testing/timing on MP3 files yet, given the FLAC results I would think I should see 15 hours easy.

 

The battery percentage indicator went down to 13% before it shut down on it's own. 2 hours later after being plugged into the computer to charge, it was at 100% and rearin' to go again.

SanDisk Guru
Posts: 1,581
Registered: ‎11-26-2008

Re: Critical battery issues

Don't get me wrong, I think that the Clip+ is a nifty unit, but the battery life sucks, plain and simple.  It is tolerable with mp3-flac etc. files, but for me the battery life using the radio function is awful.  I am lucky to get 6 hours of usage playing the radio.

 

I would gladly accept a bit bigger unit as a tradeoff for better battery life.  But that is me....

"Before I sink into the big sleep...I want to hear the scream of the Butterfly"
SanDisk Guru
Posts: 3,233
Registered: ‎09-13-2008

Re: Critical battery issues

"I would gladly accept a bit bigger unit as a tradeoff for better battery life. But that is me...."

 

http://forums.sandisk.com/sansa/board/message?board.id=featuresuggestions&thread.id=1392

Highlighted
Newbie
Posts: 3
Registered: ‎01-24-2010

Re: Critical battery issues

Just to add some more anecdotal evidence, I too have had battery life problems with my Clip+ 8GB.

 

I've had it just over a month now.  I would say average battery life is probably about 6 hours.  On a couple of occasions it has gone for twice that long.  On a couple of occasions it has gone flat within (approximately) 3 hours of use.  I only use it to listen to mp3 files.  No other formats, radio or voice recordings.

 

It's rare that I'll listen to it for more than 6 hours in a day, so it is not a huge problem for me.  What is more of a problem is that the battery level display is very buggy, as a few people here have mentioned.  What normally happens is that I will charge it to full, and then listen to about 1 or 2 hours of music, which depletes the battery to about 80-something percent.  Another couple of hours and it will drop to about 40 percent.  And then it will deplete very slowly for a while, until it reaches about 30 percent, after which it can go from 30 percent to flat within the space of a 3-minute pop song.

 

It's difficult to be sure if it's a meter calibration problem rather than a problem with the battery.  The generally short life of the battery in my unit suggests to me that there are problems with the battery itself, but it is possible that inaccurate meter readings are an additional problem on top of that issue.

 

Overall I'm very pleased with my Clip+, but a few minor problems persist which would make me hesitant to recommend it to a friend.