Prepare for the next level


Majin Wamu

Powered by Pixels
Joined
Feb 10, 2014
Messages
468
Location
Somewhere
I am quite curious too. I was wondering but I was kind of afraid to ask...cuz I don't think I truly understand the harm.
 

pmprog

DNF (Did Not Finish)
Joined
Apr 25, 2011
Messages
4,150
It sounds like a good idea - but it isn't.

All batteries swell over time - and then you will never get it out again and at some time it will just burst your Pyra.
Just out of curiousity, why isn't that a problem for every phone manufacturer in the last +10(?) years ?
Maybe because a phone's life span is about 2 weeks before the next upgrade? :)
Just kidding. I too would like to know, and it's not just phones, but tablets, netbooks, laptops, etc.

Could the battery case not just be made a little bigger than necessary to hold the battery's insides, giving room to expand within the confines of the physical case?
 

azmodan79

Still Fresh
Joined
Mar 7, 2014
Messages
3
Sorry if it's already been asked/discussed before:

What about the audio section? Will it have a dedicated headphone amp? Will it have a dac?
 

TrashyMG

Sarcasm Dispenser
Staff member
Joined
Jan 18, 2010
Messages
11,344
It sounds like a good idea - but it isn't.


All batteries swell over time - and then you will never get it out again and at some time it will just burst your Pyra.
Just out of curiousity, why isn't that a problem for every phone manufacturer in the last +10(?) years ?
Well you should see the bulging battery in my old flip phone, Smartphones mostly use lithium ION which doesn't swell. Also every phone I've owned had soft lids. 
 

EvilDragon

Administrator
Staff member
Joined
Mar 4, 2003
Messages
29,977
Age
45
Location
Ingolstadt
I've got four different phones with huge batteries now (which I should get rid of, btw).

From various manufacturers.

And I haven't seen a smartphone where you slide in your battery...
 

thatgui

Advanced Member
Joined
Apr 2, 2009
Messages
3,048
Well you should see the bulging battery in my old flip phone, Smartphones mostly use lithium ION which doesn't swell. Also every phone I've owned had soft lids.
I've got four different phones with huge batteries now (which I should get rid of, btw).

From various manufacturers.

And I haven't seen a smartphone where you slide in your battery...
Ah ok, I guess I lack the personal experience, did not own many cellphones over the years, and the only "old" phones I see are usually already "converted" into toys, so they already are months or even years away from a charger.
I wasn't adressing the "slide in" idea in particular - I just always wondered why the Pandoras battery has no hard shell.
 

WizardStan

Mega GP Mania
Joined
May 24, 2008
Messages
16,731
I have two phone batteries which prove that it most certainly is a problem with them.
 

God Ginrai

Godmaster
Joined
Nov 27, 2005
Messages
5,466
Website
Visit site
I wasn't adressing the "slide in" idea in particular - I just always wondered why the Pandoras battery has no hard shell.
From what I understand, using the soft shell makes them more durable and less likely to explode.

-God Ginrai
 

Pritchy

Member
Joined
Aug 16, 2012
Messages
127
I'd also guess that the much larger size of the Pandora/Pyra battery makes this a more prominent problem than a small phone battery? I had a couple of Blackberry phone batteries that swelled, one was the official battery included with the phone. It certainly happens.
 

hailrazer

Moderator
Staff member
Joined
Feb 3, 2011
Messages
353
They do make Lithium polymer in a hard case.   But it makes it thicker obviously. 
 

mcobit

Advanced Member
Joined
Jul 28, 2008
Messages
6,910
The battery of my HTC HD2 was so thick that I couldn't fit the cover anymore. I guess I was lucky that it is not in a hardcase.
 

comradekingu

Glowing ember
Joined
Apr 15, 2011
Messages
5,106
Website
portfolio.anotheragency.no
Schugy: http://hackaday.com/2014/02/28/pcb-antenna-reference-designs/ I suppose anything that isnt a 3d antenna design is up for consideration.

Yeah guys it was just a fan made concept, but it was very good, and had some awesome ideas, such as the slide out battery, I really think that is a very good idea. That way the battery isn't all wobbly inside like it is in the Open Pandora.
 It sounds like a good idea - but it isn't.

All batteries swell over time - and then you will never get it out again and at some time it will just burst your Pyra.
It could be if the whole ordeals unscrews from the top. Should the battery get stuck you can then unscrew the PCB and lift it up from underneath.
 
Last edited by a moderator:

bzar

A Commando
Joined
Sep 22, 2008
Messages
4,500
Location
Finland
Website
Visit site
^ Assuming you notice it in time. If you don't, the bulging battery may bend and break stuff inside your pyra. How much pressure can the battery take in the crammed space before bursting violently? I have to admit I have no idea of the magnitude of anything regarding this :)
 

doragasu

Member
Joined
Jun 2, 2008
Messages
325
I own a Nokia 5800 with a greatly bulged battery (it almost doesn't fit now inside the case) and also a much older SonyEriccson T610 that also had this problem. I own also a Nokia N80 that didn't suffer this problem, dunno why sometimes batteries get fat and other times they don't.
 

comradekingu

Glowing ember
Joined
Apr 15, 2011
Messages
5,106
Website
portfolio.anotheragency.no
B-zar, it would damage the screwthreads if anything, since it bulges evenly (?). Then again, a system which snaps in place would solve this. Much like the current battery hatch does. Ball rivets locking into round sockets instead of screws would probably be better than something which looks like it should be opened.

And in im favour of that since its tool-less and hacker friendly.

Certainly it would be usable more times than self-riveting screws in plastic is.

To flex a PCB to where it breaks means more than 30 degrees at an angle, and a high amount of force.

Edit: Would be interesting to know the limits of the plastic production, because in my head i see the desire for a design that has an additional boundary component where the battery slides in from the side.
 
Last edited by a moderator:

Klumpen

Run away! Run away!
Joined
Nov 19, 2011
Messages
8,578
Location
Uncanny Valley
I own a Nokia 5800 with a greatly bulged battery (it almost doesn't fit now inside the case) and also a much older SonyEriccson T610 that also had this problem. I own also a Nokia N80 that didn't suffer this problem, dunno why sometimes batteries get fat and other times they don't.
Please tell me, that you do not press these time bombs against your head.
 

xiongxioi

Member
Joined
Feb 13, 2012
Messages
434
I think I heard it from somewhere that Lithium battery usually swell up due to large current. I guess it can be prevented to some degree by putting a current limiting charging circuit in there.

But, this might not be the only reason batteries go bulged.
 

Granitehead

Advanced Member
Joined
Oct 16, 2009
Messages
3,011
I own a Nokia 5800 with a greatly bulged battery (it almost doesn't fit now inside the case) and also a much older SonyEriccson T610 that also had this problem. I own also a Nokia N80 that didn't suffer this problem, dunno why sometimes batteries get fat and other times they don't.
 Please tell me, that you do not press these time bombs against your head.
I think it would probably first start to burn and stink before it explodes so you would have time to throw it away - wouldn't it? :)
 
Top