Author Topic: Faulty battery? Or faulty battery indicator?  (Read 5867 times)

Omega Gemo

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Faulty battery? Or faulty battery indicator?
« on: June 12, 2010, 06:07:47 am »
I'm having some major problems with my Dingoo. Lately, even after a long time charging, a charge on my Dingoo will only last for roughly an hour, hour and a half before it shuts itself down due to "low power". I recently discovered the secret menu that shows the status of the battery. After a long charge, it charges to ~256000. Played with the Dingoo until it shut itself down, and the secret menu shows it having a charge of ~228000. The battery indicator shows the battery is empty at this point.

Is this a sign that the battery is faulty? Or is the dingoo battery indicator to blame? I don't want to buy a replacement battery for my Dingoo if it won't do any good.

Also, there's a huge bulge, and a resulting crack, on the back of my Dingoo, roughly on the same side as the four buttons (A,B,X,Y). Is there a component there that could have failed to cause these battery problems?

xdpirate

  • * Former Staff
  • Posts: 490
Re: Faulty battery? Or faulty battery indicator?
« Reply #1 on: June 12, 2010, 07:29:49 am »
I recently discovered the secret menu that shows the status of the battery.

I'm sorry, but I can't help you with your problem, but where is this "secret menu" that you speak of? This is the first I've heard of it.

Frank_fjs

  • Posts: 705
    • My simple Dingoo web site
Re: Faulty battery? Or faulty battery indicator?
« Reply #2 on: June 12, 2010, 08:57:13 am »
System -> About ↑ → ↓ ↑ → ↓

The last 6 digit number shows battery status. Full charge should be around 270000.

darfgarf

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Re: Faulty battery? Or faulty battery indicator?
« Reply #3 on: June 12, 2010, 10:12:57 am »
Also, there's a huge bulge, and a resulting crack, on the back of my Dingoo, roughly on the same side as the four buttons (A,B,X,Y). Is there a component there that could have failed to cause these battery problems?

post a picture, there's not much room, so the battery has to sit inbetween the other large components on the board, might have been badly placed

(and i'd suggest opening it up, but be careful if that bulge is due to something pressing on the battery, if it's been pierced, throw it out in the correct manner and don't go near it)

xdpirate

  • * Former Staff
  • Posts: 490
Re: Faulty battery? Or faulty battery indicator?
« Reply #4 on: June 12, 2010, 11:29:17 am »
System -> About ↑ → ↓ ↑ → ↓

The last 6 digit number shows battery status. Full charge should be around 270000.
Ah! I knew about this screen, but never realized that the last number was for the battery. Thanks!

Omega Gemo

  • Guest
Re: Faulty battery? Or faulty battery indicator?
« Reply #5 on: June 12, 2010, 11:55:21 am »
Here's a picture of the bulge, with a light shining on the crack to make it more profound:



And of the inside (smaller image to fit the site):



I don't want to remove the battery, because it's been glued pretty tightly to the components and something will probably pop loose if I tried.
« Last Edit: June 12, 2010, 12:23:40 pm by Omega Gemo »

darfgarf

  • Guest
Re: Faulty battery? Or faulty battery indicator?
« Reply #6 on: June 12, 2010, 12:11:38 pm »
smallest screwdriver you can find(phillips)
use some form of knife, or just a fingernail to get the rubber covers off, mine all just fell out themselves  ;D

(that crack looks like there's a problem there, but there's nothing in that are, just a battery, circuit board ontop, then the edge of the screen/start of the buttons area...odd

Omega Gemo

  • Guest
Re: Faulty battery? Or faulty battery indicator?
« Reply #7 on: June 12, 2010, 01:58:45 pm »
I finally had the courage to move the battery (somehow I was able to remove it with no damage to the motherboard). I think I was able to find the problem right away just by feeling the battery. The end of the battery around where the bulge is is itself bulging. Seeing how the battery is wired to the dingoo motherboard, it would be impossible for me to replace it at my skill level.

So, is there any danger in ignoring the bulging battery and continuing to use the dingoo as is? It would still make for a nice wallwart system if need be.

darfgarf

  • Guest
Re: Faulty battery? Or faulty battery indicator?
« Reply #8 on: June 12, 2010, 02:06:54 pm »
So, is there any danger in ignoring the bulging battery and continuing to use the dingoo as is? It would still make for a nice wallwart system if need be.

uhm...any kind of bulging battery is generally a bad idea, li-po or li-ion especially (just search youtube for exploding laptop battery :D)
replacing it is a matter of de/re-soldering 2 simple joints, should take about a minute, even with a little firestarter iron
...though as the case is cracked it's probably best to just buy a new dingoo/whatever (got a warranty for it?)

i would personally take that battery out and dispose of it (safely of course, not the normal rubbish :P), first swollen battery i've seen in dingoo land

(actually with a  pair of scissors and a little insulation tape you could replace it without any soldering needed, just make sure you twist the wires together well  :D)

Nindor

  • Posts: 27
Re: Faulty battery? Or faulty battery indicator?
« Reply #9 on: June 13, 2010, 04:53:57 am »
As I myself are a bad solder i would do it like this to save myself from trouble:

Cut the wires at the battery, add a par of male and female blade connectors to the wires and the wires on the new battery.

Links are just to show how they look. I have no idea were you should get them or what size fits you.


:edit: BEC connectors or JST cables might be better for this purpose :/edit:


But let the experts here deside if it's a good solution or not since i have very little experience in soldering.
« Last Edit: June 13, 2010, 07:43:31 am by Nindor »
"Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe." - Einstein

darfgarf

  • Guest
Re: Faulty battery? Or faulty battery indicator?
« Reply #10 on: June 13, 2010, 09:31:34 am »
XD you could do little connectors, but there's about 4mm of space to play with there...and it won't need removing, so just cutting and twisting 2 wires together is probably easiest

(and the soldering is   really easy anyway, 2 big(a good few mm across the blob) that just need melting and a new wire stuck in, would do it with a hot poker if you heat it up enough)

8bitbubsy

  • Guest
Re: Faulty battery? Or faulty battery indicator?
« Reply #11 on: June 13, 2010, 10:06:31 am »
That battery does not look sane. I can see the bulging even on the picture. Remove it instantly and get a new one, before it bulgs even more and eventually explodes.

 

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