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jellyroll's Avatar
Posts: 435 | Thanked: 684 times | Joined on Apr 2012 @ Netherlands 020
#11
Your battery will charge when the phone is turned off.

https://raw.githubusercontent.com/NI...umentation.txt

Last edited by jellyroll; 2015-12-29 at 17:25. Reason: RescueOS
 
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#12
Originally Posted by jellyroll View Post
Your battery will charge when the phone is turned off.
I am connecting my turned off phone to wallcharger. Then almost immediately NOKIA logo is shown on the screen (without backlight). After about 10 seconds LED goes constantly red (not flashing like during normal charging). Then, after couple of minutes, logo disappears and LED goes off. Battery is still uncharged.
 
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#13
Try to connect your phone to the wallcharger without battery. Place the battery back. If the phone doesn't turn on again just let it recharge for a few hours.
 
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#14
Originally Posted by jellyroll View Post
Try to connect your phone to the wallcharger without battery. Place the battery back. If the phone doesn't turn on again just let it recharge for a few hours.

I've tried this method. The phone did not turn on, no light, no logo. I disconnected it after about half an hour, but battery is still dead. How long should I charge it and what percentage of capacity can I obtain? Could you please describe me in a few words what is happening when this method is used.
 
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#15
Originally Posted by NotMicro View Post
I wonder if voltage can be different from nominal 3.7 V (for BL-5J). And how connect my battery with the other charger (or phone).
All Lithium batteries have the same voltage. Some say 3.6, others 3.8, but underneath it is all the same technology. 3.7 is a median and the exact figure depends on how you calculate it; a fully charged Lithium battery has something like 4.1V.

If "the other phone" takes BL-5J then there is nothing to speculate. The contacts are already set up for you. The universal one I posted a link to can figure it out by itself, even if you reverse the battery. There are other ways but if you have to ask, then you better stick to tried and foolproof ways like those already mentioned. DIY can be dangerous in the hands of an amateur.
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#16
Originally Posted by pichlo View Post
pali is right, you need a charger of some sort. It could be anything that uses the same kind of battery. Other phones, not just N900 (old "dumb" phones are the best), or other devices. I once had a Bluetooth GPS receiver using the same battery that could be charged from a USB port.

Your best bet though is to invest in a universal one, like e.g. this one (in your country variant, obviously). It costs peanuts and can be used for anything: cameras, other phones... Ever since I got mine I am not taking anything else on holidays.
Dead on the money.
It is what I would suggest.
I have a few different types of chargers.
My uboc has replaced them all.
http://www.ebay.ca/itm/UBOC-Universa...4AAOSw7NNT3lN3
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Owner of :
1-n770 (in retirement), 3-n800's / 3-n810's (still in daily use), 5-n900's ((3 are flawless, 1 loose usb ( parts), 1 has no telephony (parts))
3-nexus 5's : 1 w/ Floko Pie 9.1 (running beautifully) waiting for Stable Droid 10 rom, 1 w/ ̶Ubuntu Touch, 1 with Maru OS (intend maemo leste when ready)

1/2 - neo900 pre- "purchased" in 2013. N̶o̶w̶ ̶A̶w̶a̶i̶t̶i̶n̶g̶ ̶r̶e̶f̶u̶n̶d̶ ̶p̶r̶o̶c̶e̶s̶s̶ ̶l̶a̶s̶t̶ ̶f̶e̶w̶ ̶y̶e̶a̶r̶s̶ - neo900 start up declared officially dead -
Lost invested funds.


PIMP MY N8X0 (Idiot's Guide and a video walkthrough)http://talk.maemo.org/showthread.php?t=94294
THE LOST GRONMAYER CATALOGShttp://talk.maemo.org/showthread.php...ight=gronmayer
N8X0 VIDEO ENCODING THE EASY WAYhttp://talk.maemo.org/showthread.php...ght=mediacoder
242gb ON N800http://talk.maemo.org/showthread.php?t=90634
THE PAIN-FREE MAEMO DEVELOPMENT LIVE DISTRO-ISO FOR THE NOOB TO THE PROhttp://talk.maemo.org/showthread.php?t=95567
AFFORDABLE MASS PRODUCTION FOR MAEMO PARTShttp://talk.maemo.org/showthread.php?t=93325

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endsormeans's Avatar
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#17
Originally Posted by NotMicro View Post
I've tried this method. The phone did not turn on, no light, no logo. I disconnected it after about half an hour, but battery is still dead. How long should I charge it and what percentage of capacity can I obtain? Could you please describe me in a few words what is happening when this method is used.
If your battery is dead I'd suggest a couple of hours to get a decent charge back using an external charger.
a half hour might not cut it.
If your battery still doesn't want to comply...
perhaps it is the fact the external charger is faulty....
possibly..
but I'd guess..
I'd say you got a very dead battery on your hands.
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Lurker since 2007, Member since 2013, Certifiable since 1972

Owner of :
1-n770 (in retirement), 3-n800's / 3-n810's (still in daily use), 5-n900's ((3 are flawless, 1 loose usb ( parts), 1 has no telephony (parts))
3-nexus 5's : 1 w/ Floko Pie 9.1 (running beautifully) waiting for Stable Droid 10 rom, 1 w/ ̶Ubuntu Touch, 1 with Maru OS (intend maemo leste when ready)

1/2 - neo900 pre- "purchased" in 2013. N̶o̶w̶ ̶A̶w̶a̶i̶t̶i̶n̶g̶ ̶r̶e̶f̶u̶n̶d̶ ̶p̶r̶o̶c̶e̶s̶s̶ ̶l̶a̶s̶t̶ ̶f̶e̶w̶ ̶y̶e̶a̶r̶s̶ - neo900 start up declared officially dead -
Lost invested funds.


PIMP MY N8X0 (Idiot's Guide and a video walkthrough)http://talk.maemo.org/showthread.php?t=94294
THE LOST GRONMAYER CATALOGShttp://talk.maemo.org/showthread.php...ight=gronmayer
N8X0 VIDEO ENCODING THE EASY WAYhttp://talk.maemo.org/showthread.php...ght=mediacoder
242gb ON N800http://talk.maemo.org/showthread.php?t=90634
THE PAIN-FREE MAEMO DEVELOPMENT LIVE DISTRO-ISO FOR THE NOOB TO THE PROhttp://talk.maemo.org/showthread.php?t=95567
AFFORDABLE MASS PRODUCTION FOR MAEMO PARTShttp://talk.maemo.org/showthread.php?t=93325

Meateo balloons now available @ Dave999's Meateo Emporium
 

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#18
I have external charger for my DSLR Nikon. It has output voltage 7.4V and current 0.9 A. Can I use it to charge BL-5J battery (3.7V) ?
 
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#19
Originally Posted by NotMicro View Post
I have external charger for my DSLR Nikon. It has output voltage 7.4V and current 0.9 A. Can I use it to charge BL-5J battery (3.7V) ?
No. 10 chars
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#20
Originally Posted by jellyroll View Post
Try to connect your phone to the wallcharger without battery. Place the battery back. If the phone doesn't turn on again just let it recharge for a few hours.
I've found yesterday in service manual for Nokia N900 information as follows:

"If a USB cable is connected before a battery, charging is not started. The USB cable and battery must then be removed before charging is started."

So this method of charging is useless, because nothing is charged.
 
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