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battry too empty ? |
arri
Joined: Jun 22, 2004
Posts: 5
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hi
usually i wait for the battery to completely run empty before recharging. 'they say' that's the best thing to do. also when charging, completely fill the battery all the way... 'they say...'
what happened to me: the battery was completely empty, the phone actually turned off. before i went to bed, i plugged in the adapter. next day: nothing. still empty, the phone wouldn't even turn on.
i have a second battery, which had a little power left. so i put that one in. phone turned on, i used it for half a day, before the phone started saying the battery was empty. when it did i immediately plugged in the charger... but nothing happenes.
it seems the electronics that deal with the charging is f**ked-up or something.
when the charger is plugged in while the phone is off, the phone will cycle through this sequence all the time:
- blue screen (booting?) -showing the 'charging' screen with animated charging battery for 2 seconds - white screen (10 seconds?) - black screen (off?) - blue screen ...etc..
with the first battery nothing happens at all.. i think that this battery killed the charger hardware of the phone..
so the phone works fine with a full battery, but it won't charge the battery anymore.
is anyonen familiar with this problem?
is it really broken hardware? or is it a software thing and can it be solved by resetting the phone or something?
and ohja, when i turn the phone on with the little power left in the battery, it'll sometimes look as if it charging (animated battery..) but usually only for a short period
it's a T630 in a T610 housing.
it's a little over a year old..
thanks
arri
[ This Message was edited by: arri on 2005-10-01 16:11 ] |
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Kryptik
Joined: Jun 24, 2005
Posts: > 500
From: Port Elizabeth, S.Africa
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Have you tried using a different charger? That may resolve the problem... If not, there's a thread hereabouts discussing battery life, maintenance and problems.
This message was posted from a Nokia |
BobaFett
Joined: Jan 06, 2004
Posts: > 500
From: Kamino (wish it would be Lund)
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read here more about batt charging, we discussed it pretty long:
http://www.esato.com/board/viewtopic.php?topic=61325
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arri
Joined: Jun 22, 2004
Posts: 5
PM |
yes, i tried a different charger, but no succes.
i also tried my charger on another phone, and there it worked fine, so it is the phone.
and in the thread BobaFett posted i didn't really find a lead to similair problems.
i'm afraid the phone is broken...
thanka anyway |
Kryptik
Joined: Jun 24, 2005
Posts: > 500
From: Port Elizabeth, S.Africa
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Sorry that we couldn't find a solution, buddy. Does sound as if the phone's problematic then...
This message was posted from a Nokia |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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yeah must be the phone.
Lithium batts have circuitry inside that shuts the battery down before the volatage gets too low. Therefore, when your phone dies from a "flat battery", the battery isn't actually completely flat. (running a lithium battery at very low voltages drastically decreases it's life cycle) |
BlueQuill
Joined: Jul 29, 2005
Posts: 419
From: India
PM |
Yes. I have encountered a same problem. My phone was completely screwed up. There was a burnt chip or somethin. Had to take it to the phone docs. Mate, there is nothing you can do about it. Rush to someone who deals with mobile phone hardware.
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johnpete
Joined: Sep 20, 2005
Posts: 60
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yeah, best bet would be to have the hardware looked at, chances are there's really something wrong with the phone itself. in the future though, better not let your lithium battery run on too low a charge. all those advice re charging and memory effects only applied to the older nickel cadmium & metal hydride batts. try to search here in esato as well as google a lot of sites that provide advice on battery care |
leeboy13
Joined: Sep 28, 2005
Posts: > 500
From: Brissle - dodgy accients
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i had a very simular problem with my old samsung d500, where the battery went like this, and i worked out that it was the phone itself, not the battery. i actually left my phone out in the sun on a hot newquay beach this summer - it almost killed my phone by making it run the battery down as within one hour (whether the phone is on or off)...
Gutting! |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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johnpete, lithium batteries have circuitry to prevent this problem. You actually can't run them completely flat, since they shut the current flow down once they reach a minimum charge level.
When you leave the phone on until the battery 'runs out' and the phone turns off, it is actually turning off because the battery has cut off the elctricity supply to the phone, not because it has run out of charge.
However you are quite correct about memory affect. It does not apply to lithium batteries and you certainly don't need to power cycle the battery to keep it memory free. So you can run it flat if you need to, but you don't HAVE to in order to keep it in good working condition. |
*Jojo*
Joined: Oct 15, 2003
Posts: > 500
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OK, so what will be the best alternative here mates   Service Center? This will be the last recourse I guess.
[addsig] |
BobaFett
Joined: Jan 06, 2004
Posts: > 500
From: Kamino (wish it would be Lund)
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its recomended to use always the last or latest fw, it does effect the batt standby and talktime aswell.
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dude_se
Joined: Dec 16, 2004
Posts: > 500
From: Evesham, UK
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buy a desktop charger
dude_se
10 +'ve feedback's, 0 -'ves
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johnpete
Joined: Sep 20, 2005
Posts: 60
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I read somewhere that even though these relatively newer lithium ion and lithium ion polymer batteries have a trigger that prevent users from further using the battery right before reaching the red zone, the battery still does discharge small trickles of its power even when not in use. I guess over time, it would eventually still run out below the red zone. Temperatures outside the recommended range also does damage to the battery, and so it's adviced that batteries which are not going to be used for some time be stored with a not lower than 40% charge, and one article even suggests storing it in a refrigerator (not freezer or chiller tho). Maybe the heat from the charging with something wrong in the phone's power/charging circuitry damaged the batteries as well. Another article/site also says that lithium batteries lifespans are not counted from the moment of first use or opening, but from the moment it comes out of the assembly line. Maybe the two batteries have similar manufacture dates, you could try the phone with a brand new battery before you have it opened up, i guess. |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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spot on johnpete.
However it is under-voltage while in use that damages the battery. When there is no current draw, the voltage is zero. Unless the battery is in use the under-voltage condition doesn't exist (quite different to zero voltage which means no electrical flow at all) . So as long as the very flat battery isn't used in it's last moments of charge (when the voltage drops drastically), then it will be okay, even if it loses further charge.
The reason batteries should be stored with 40% charge in a cool place is to help slow down the natural degradation of battery chemistry, this has nothing to do with the under voltage problem. 
Well researched though...
Below is a good site for batt info:
http://www.batteryuniversity.com/partone-5.htm |
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Posted: 2005-10-01 17:03
