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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Maemo 5 / Fremantle (https://talk.maemo.org/forumdisplay.php?f=40)
-   -   SmartReflex issues (https://talk.maemo.org/showthread.php?t=48207)

egoshin 2010-03-24 20:03
Re: SmartReflex issues
 
I bought some extended battery device for emergency re-charging it in a run. It provides a little less power (750mA instead of 800mA) and I observe difficulties in recharging while battery level is low. Recharger device circuitry switches it OFF after it discovers too much power sucked by N900.

And it actually charges N900 much more time in comparison with wall charger.

fhofer 2010-03-24 20:24
Re: SmartReflex issues
 
Quote:
Originally Posted by tomaszrybak (Post 580902)
I have had SmartReflex enabled on all available firmware F original, PR1.0.1, PR1.1, and PR1.1.1 - no problems with it.

Usually I charge by wall charger, but IIRC I have charged once over USB; this was however from my desktop.

Maybe this is reason of your prolonged charging - maybe your laptop does not provide enough power. If you have desktop, please try charging from it.
I dont have a desktop, but the thing is that I have successfully charged the phone from the laptop (running on AC power, not batteries btw) some 40 times. Then I enabled SR and had a problem. I have disabled it again and I will see tomorrow and report here.

SavageD 2010-03-24 20:34
Re: SmartReflex issues
 
This is just a thought...though, It is possible that your battery may be a 'fake Nokia BL-5J', and this might be the actual cause of your problems. Because smart reflex is specifically coded to work with certain models of batteries and devices...

Check and make sure your battery isn't a fake as it is very likely that smart reflex is bugging out because of this. I would post the forum link that shows the difference between fake and original nokia batteries...but I'm currently too busy.

fhofer 2010-03-24 21:03
Re: SmartReflex issues
 
Quote:
Originally Posted by SavageD (Post 580968)
This is just a thought...though, It is possible that your battery may be a 'fake Nokia BL-5J', and this might be the actual cause of your problems. Because smart reflex is specifically coded to work with certain models of batteries and devices...

Check and make sure your battery isn't a fake as it is very likely that smart reflex is bugging out because of this. I would post the forum link that shows the difference between fake and original nokia batteries...but I'm currently too busy.
good thought. I got my N900 from an unofficial sales channel - had two reasons for it: 25% lower price & english keyboard with all arrow keys instead of localized czech keyboard. so yes there could be some chance of having non-original accessories. The fake battery thread is http://talk.maemo.org/showthread.php?t=46987 I have turned off the phone and did all the checks, but my battery appears to be 100% nokia.

gabby131 2010-03-24 21:06
Re: SmartReflex issues
 
Quote:
Originally Posted by fhofer (Post 580479)
In order to improve the battery life, I have enabled SmartReflex as described in:
https://bugs.maemo.org/show_bug.cgi?id=7633

I have had it on for about a day (so hard to judge battery life improvement) and noticed that the charging just takes forever - it never stops. I am charging it via the USB cable from laptop which never took more than 4 hours, but with SmartReflex it did not stop after 6 hours.

Could this damage battery? Is there a workaround for this (besides turning SmartReflex off again)

I have googled a little and found out that some other users have the same experience, cf. http://forums.precentral.net/palm-pr...ng-issues.html

Do you observe the same issue?
yikes!!! charging via usb cable on a pc or laptop is a bit different IMHO.

when i did that, it took 4 hours before full charge. good thing is that'll cause me less overcharging of the device

Frank Banul 2010-03-24 21:15
Re: SmartReflex issues
 
I enabled smart reflex yesterday and charged via a USB connection to a powered hub to a full charge today in what seemed to be the usual amount of time.

Frank

fhofer 2010-03-24 21:15
Re: SmartReflex issues
 
Quote:
Originally Posted by gabby131 (Post 581005)
yikes!!! charging via usb cable on a pc or laptop is a bit different IMHO.

when i did that, it took 4 hours before full charge.
Yes, 4 hrs charging from computer is normal, my problem was the charge was not complete after 8 hours and I gave up and unplugged.

Quote:
good thing is that'll cause me less overcharging of the device
I have heard that slow charging is generally better for batteries - slow charging should mean less wear, i.e. getting more charge cycles.

gabby131 2010-03-24 21:18
Re: SmartReflex issues
 
Quote:
Originally Posted by fhofer (Post 581015)
Yes, 4 hrs charging from computer is normal, my problem was the charge was not complete after 8 hours and I gave up and unplugged.

I have heard that slow charging is generally better for batteries - slow charging should mean less wear, i.e. getting more charge cycles.
so slow chargers are also good. i also heard that slow charging gives more battery life. not sure how much longer.

fhofer 2010-03-25 11:20
Re: SmartReflex issues
 
Quote:
Originally Posted by fhofer (Post 580947)
I dont have a desktop, but the thing is that I have successfully charged the phone from the laptop (running on AC power, not batteries btw) some 40 times. Then I enabled SR and had a problem. I have disabled it again and I will see tomorrow and report here.
With SR disabled, the phone charged normally from laptop today (from 70% to full in 2 hours). So I suppose that there is a reason for SR being disabled by default. It seems not to work reliable under some circumnstances. While it may work for some, it does not work for me. Thank you all for discussing this issue with me :)

slender 2010-03-25 11:25
Re: SmartReflex issues
 
Quote:
Originally Posted by fhofer (Post 581647)
With SR disabled, the phone charged normally from laptop today (from 70% to full in 2 hours). So I suppose that there is a reason for SR being disabled by default. It seems not to work reliable under some circumnstances. While it may work for some, it does not work for me. Thank you all for discussing this issue with me :)
But can you disable/enable it on run?


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