Very strange charging behaviour?
 

Heyho!
Tonight I left my N800 charging. The morning I wake up it was completely charged. Then I used the device 10 Minutes for a little wlan browsing. After that I put the device back to the plug, because I planed to listen to Iradio for some hours. So I started the streaming. That was two hours ago, and the charging indicator indicates that it is still charging???:confused:

Re: Very strange charging behaviour?
 

Arrrrrgh, even now it's charging!?!? Over 3 hours to charge a 98% full battery???? The upper central part (right there where the microphone is located) is even warm. Have to admit, I am still streaming Iradio, but now it's seems very strange to me.

Re: Very strange charging behaviour?
 

PS: If you don't see me again writing stuff in this forum, it is because my N800 eventually exploded just 20 cm away from me. Please tell my familly how I die...

Re: Very strange charging behaviour?
 

That's strange. I tested something similar: Freshly charged, used for a while on battery only, plugged in the charger again. It started charging but finished some ten minutes later.

Re: Very strange charging behaviour?
 

How long was "a while"? For me it was 10 minutes. It's still charging.... three hours now.
Yours seems to work the opposite way than mine. Perhaps something to do with charging calibrations of the charging-electronic? When I got mine (last thursday), I was completely discharging/charging 2-3 cycles., so the electronic could calibrate to the battery. But I used the device when charging the first times, perhaps that was not optimal?

Re: Very strange charging behaviour?
 

My charging/consumption of power has been totally fuzzy until I was told by s-o in Nokia Labs

- to charge over very long period of time and consume 100% (full cycles) 4 to 5 times in a row. nothing new, but I must admit I did not do it in the first place and I used the n800 while charging at first
- to switch OFF Wifi and BT connections when not using the N800 as variations in the field and refreshs create variations in the consumption rate.

Now it s VERY steady. I don't know if this helps.

Re: Very strange charging behaviour?
 

To do this only on the first charging cycles? If not it would be like "Do not use the features of your device, cause then it can't charge the battery properly."
From your experience it shows that it is related to the charging-unit in the device. I will start again some 100% discharge/charge cyles over night, without usind the device.
Now I will cut off the power. I feel pity for my little innocent tablet...
Thanks for help.

Re: Very strange charging behaviour?
 

In my case it s impossible to know if switching off BT and WF applies to first charging cycles only, because I kept this rule on afterward as it still consumes 100% of the capacity in 3.5 hours. as specified in the technicals specs on the website. As I m no expert, instead of investigating the problem, I just followed the advice and got rid of the problem.

I hated to find my n800 battery totally empty in the morning :( . I even thought there was a default. Now I m happy!

Re: Very strange charging behaviour?
 

I did my little test with maybe 20 minutes of usage before I charged.
As for initial handling of battery I discharged it to 25% the first time, and after that I just kept charging when it reached 50% (or earlier) except for once or twice when it as at 25% or less.

But I know from my Palm T3 that the charger circuit in the unit could get confused (particulary when new or with new battery), and you had to do something called an "in-cradle reset", which was to reset the device while it was attached to the charger. There is no notion in the N800 docu (thin as it is) about anything similar, although the symptoms you describe could sound like it needed one.

Re: Very strange charging behaviour?
 

I hope the device is intelligent enough to adept and correct it's charging strategy automatically. Such a "charging-reset" option would be very nice, especially when you have two or more batteries.

Re: Very strange charging behaviour?
 

hi, i read in one thread which i couldn't find back - although i did try with the search
and ad hoc keywords- that setting wifi connection to 10 mA will optimize power
consumption. I think it was Karel's reply. my question is : how to do that ? thx, Seb.
PS : please Karel don't shoot ! I did search :-)

Re: Very strange charging behaviour?
 

Tools>Control Panel>Connectivity>Connections (the button at the bottom)
Choose a WLAN connection (with the Globe-and-antenna icon)>Edit>Next(don't change anything, just hit "next"!) >Next>Advanced>"Other" tab
Change WLAN transmission power to 10mW
You can hit "Cancel" or "Finish" at the end, either way the power is changed.

And, totally counter-intuitive, this is done for all your WLAN connections. Why Noka thought it would be a good idea to bury this in the settings for individual WLAN configurations is beyond me.

Dang! almost forgot: BANG! BANG! (he shot me down)
(I'm a Tarantino fan)

Re: Very strange charging behaviour?
 

<sarcasm>Genius!</sarcasm>

See above. Obviously the dialog is designed by an idiot, or a developer who doesn't get out much in the real world.

Nokia really need to get someone with GUI design sense on the case, pronto - someone who can oversee the whole OS to ensure there is consistency of design without glaring mistakes such as this.

Having hackers writing and designing much of this stuff is really beginning to show through in the poor quality apps and functionality that is being delivered. Much of IT OS is very, very good but all too easily let down by the poorly written applications and incosistent GUI design. In fact, the lack of design is the problem - it does feel a bit thrown together in places. :(

Re: Very strange charging behaviour?
 

I found this info on battery life in reference to wlan transmission power options.

https://maemo.org/bugzilla/show_bug.cgi?id=256
"The option of choosing the 10 mW transmission power is there only because
certain countries require this in their law. The low power transmission has a
negligible effect on the battery lifetime because the data is sent in short
bursts that last for less than 1% of total time. On the other hand, the lower
transmission power will make it harder to keep connected. Therefore it is best
to use the (default) 100 mW power, unless legislated otherwise in the law of
your country."

Re: Very strange charging behaviour?
 

Thank you!

:-)

"Silly Caucasian girl likes to play with Samurai swords" (KB 1, O-Ren Ishii)

Re: Very strange charging behaviour?
 

THis seems to be in conflict with earlier post...or?