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SanDisk Guru
Posts: 3,230
Registered: ‎09-13-2008

Re: AA battery powered mp3 player?

"Nobody makes AA power mp3 players "

 

They have been made in the past though, and might be made in the future. I would also like to see mp3 players built around an inexpensive easily swappable cell phone battery, such as the Motorola BR50. The BR50 is used by the Razr, has 710 mah at 3.7 V, and sells for around $7 on the net with shipping.

 

 

SanDisk Senior User
Posts: 158
Registered: ‎10-02-2008

Re: AA battery powered mp3 player?

if you want a player with AA batteries buy the old sansa models end of story.

JK98 wrote:

"Nobody makes AA power mp3 players "

 

They have been made in the past though, and might be made in the future. I would also like to see mp3 players built around an inexpensive easily swappable cell phone battery, such as the Motorola BR50. The BR50 is used by the Razr, has 710 mah at 3.7 V, and sells for around $7 on the net with shipping.

 

 


 

SanDisk Guru
Posts: 3,230
Registered: ‎09-13-2008

Re: AA battery powered mp3 player?

"if you want a player with AA batteries buy the old sansa models end of story."

 

 Sandisk never made any AA battery based models, just AAA based ones. Other companies made AA battery based players, however they had 2 GB or less of storage. I want a player with great sound quality, at least 4GB of internal storage, and a card slot.

SanDisk Guru
Posts: 3,230
Registered: ‎09-13-2008

Re: AA battery powered mp3 player?

How about an mp3 player that uses a Motorola BR50 battery? That battery is 710 mah and 3.7 v. A Player around the size of the Clip+ that uses an easily swappable(not soldered in) BR50 battery. The BR50 has over double the power of the battery in the Clip+. Imagine a Clip+ sized player(or just a tiny bit larger) that gets 32 hours of battery life, and for which the battery is easily swappable and someone can carry spare batteries. A BR50 battery is only around $7 retail on the net.
Newbie
Posts: 3
Registered: ‎10-17-2008

Re: AA battery powered mp3 player?

Just ran into this on another search for the same thing. This is not what most people would want but comes really close to me getting it.

 

http://www.sourcingmap.com/portable-white-music-player-tuner-sdmmc-card-compatible-built-128mb-flash-p-13253.html

 

Unfortunately no photo, only 1 in stock etc, not a brand name.

 

Takes 4 AA batteries, has an external charger, speakers, sd card, 2 alarm clock settings. 

 

Unfortunately nearly 8 inches long and only goes up to 8 kbps. If it went to 16 I'd get it. Most of my stuff isn't music, just speaking and with the headphones this would be fine for travelling, at least for me. It would be nice to have a travel alarm that holds extra batteries too, a little more reliable when you have a flight to catch. It is cheap enough that with just that 16 kbps improvement they would have had me trying it out.

Newbie
Posts: 16
Registered: ‎12-28-2008

Re: AA battery powered mp3 player?

I agree.... AA batteries are great!  They are cheap, available and last a long time.

I have an old Cowon G2 that uses ONE AA and it lasts probably 40 hrs. 

 

Now, after using the Fuze for nearly two years, I have no problem with the built in 

battery.  I really like the form factor of the Fuze.

 

My only wish now would be for the Fuze  to have a user replaceable battery.

That would be great. 

SanDisk Guru
Posts: 3,230
Registered: ‎09-13-2008

Re: AA battery powered mp3 player?

SanDisk Guru
Posts: 3,230
Registered: ‎09-13-2008

Re: AA battery powered mp3 player?

A Clip+ gets 12 hours of play time with a 3 hour charge. So play time is only 4x charge time. Using a player that gets 40 hours of play time on a 2900 mah AA nimh battery and a 15 minute charger that charges 4 AA nimh batteries at a time, one would get 160 hours of play time with 15 minutes of charging, and have play time that is 640 times charge time!!!!!
Newbie
Posts: 6
Registered: ‎01-04-2010

Re: AA battery powered mp3 player?

Except that 15 minute NiMH chargers abuse the cells, leading to capacity loss and premature failure. An hour is the shortest charge cycle that doesn't damage the cells. If you're interested in such things, there has been EXHAUSTIVE discussion of batteries over at CandlePowerForums.com - though as you might imagine, predominantly in the context of flashlights and other lighting devices.

SanDisk Professor
Posts: 579
Registered: ‎12-02-2008

Re: AA battery powered mp3 player?

[ Edited ]

FurrBear wrote:

Except that 15 minute NiMH chargers abuse the cells, leading to capacity loss and premature failure. An hour is the shortest charge cycle that doesn't damage the cells. If you're interested in such things, there has been EXHAUSTIVE discussion of batteries over at CandlePowerForums.com - though as you might imagine, predominantly in the context of flashlights and other lighting devices.


My charger happens to be a half hour one. Rotating through the same 2 pairs of AA in my camera, maybe weekly charging, I had the first cell go bad after 4 years.  My kid's AAA's lasted nearly 2 years of being run down to zero in her DAP before swapping, charging a couple times/week (they still worked, but around half capacity)  Both sizes got better life than most Li batteries I've used. 
 
Different brands of cells can be designed so they can or can't take fast charging as well.   From reading some of the ad copy, there's also some spin going on by MFR's that don't make fast smart chargers (or good fast charging batteries) to make their own gear look better.
 

     I've been in some groups dealing with lighting (on bikes) and they often run them until the light is too dim to use which is hard on batteries, since a slight mismatch in cells will lead to some getting reverse charge.  Electronic gear usually cuts you off when the voltage reaches some still safe level.

 

 

Message Edited by donp on 01-09-2010 09:06 AM