Page 5 of 5 « First 34 5
Reply
Thread Tools
pichlo's Avatar
pichlo is offline pichlo
2020-01-22 , 08:43
Posts: 6,447 | Thanked: 20,981 times | Joined on Sep 2012 @ UK
#41
Originally Posted by ric9K View Post
EDIT: oops, instruction in post 33, just above.
Wow, I even thanked that post. I have absolutely no recollection of that

It's irrelevant anyway. My N900 has been lying dormant for over two years
__________________
Русский военный корабль, иди нахуй!
 
Trzyzet is offline Trzyzet
2020-01-28 , 00:18
Posts: 68 | Thanked: 300 times | Joined on Mar 2017
#42
Most devices have 0.2F 3V capacitor instead of battery. It's funny issue, because faulty cap significantly reduces time on battery, I had this issue in N95-2 and my PSP. After replacing cap both problems - short battery life and clearing RTC after battery removing has been fixed.

Capacitor looks like this:
Last edited by Trzyzet; 2020-01-28 at 08:52.
 

The Following 2 Users Say Thank You to Trzyzet For This Useful Post:
pichlo's Avatar
pichlo is offline pichlo
2020-01-28 , 08:33
Posts: 6,447 | Thanked: 20,981 times | Joined on Sep 2012 @ UK
#43
Originally Posted by Trzyzet View Post
Capacitor looks like this: https://in.element14.com/productimag...B/42264039.jpg
Access Denied
You don't have permission to access "http://in.element14.com/productimages/standard/en_GB/42264039.jpg" on this server.

Reference #18.ad921602.1580200366.4d576521



However, capacitors look like this: https://duckduckgo.com/?q=capacitor&...ages&ia=images
__________________
Русский военный корабль, иди нахуй!
 
Trzyzet is offline Trzyzet
2020-01-28 , 08:54
Posts: 68 | Thanked: 300 times | Joined on Mar 2017
#44
Originally Posted by pichlo View Post
Access Denied
Reuploded the image. This cap is very special
 

The Following User Says Thank You to Trzyzet For This Useful Post:
biketool is offline biketool
2020-01-28 , 18:55
Posts: 1,424 | Thanked: 2,622 times | Joined on Jan 2011 @ Touring
#45
I have several still in the tape from Joerg but it has been several moves so I have to scour the interior of the Tardis and find the time.
 

The Following User Says Thank You to biketool For This Useful Post:
nonsuch's Avatar
nonsuch is offline nonsuch
2020-01-29 , 06:08
Posts: 584 | Thanked: 1,550 times | Joined on Sep 2019
#46
Originally Posted by Trzyzet View Post
Most devices have 0.2F 3V capacitor instead of battery. It's funny issue, because faulty cap significantly reduces time on battery, I had this issue in N95-2 and my PSP. After replacing cap both problems - short battery life and clearing RTC after battery removing has been fixed.
How much does it reduce battery life? I'm trying to assess if I should bother replacing that.
With a battery that is not new, my N900 can go ~ 1 day doing maintenance (ssh, un/installing stuff etc.), more just using it.
 
Maemish's Avatar
Maemish is offline Maemish
2020-01-29 , 06:19
Posts: 1,718 | Thanked: 4,764 times | Joined on Apr 2018 @ Helsinki, Finland.
#47
That would be a really good to know. I could also bother to replace it if it indeed affects significantly on battery life.
__________________
"I don't know how but I can try!" (active)

Master of not knowing (active)

For me it is possible to get lost in any case (active)

Learning to fall from high (DONE)

Learning to code with BASIC (WIP)
 
ric9K is offline ric9K
2020-01-29 , 07:40
Posts: 330 | Thanked: 860 times | Joined on May 2011
#48
Originally Posted by Trzyzet View Post
Most devices have 0.2F 3V capacitor instead of battery. It's funny issue, because faulty cap significantly reduces time on battery, I had this issue in N95-2 and my PSP. After replacing cap both problems - short battery life and clearing RTC after battery removing has been fixed.

Capacitor looks like this: https://i.postimg.cc/JzwYcZDy/42264039.jpg
If a defective cap drains the battery, does a li-ion battery also do?
Because Joerg_RW says the original is a li-ion battery not a cap. (post #1)

Also, he says we could replace the bupbat with a 3.2V cap, not a 3V.
Does this 0.2V makes a difference?

In the mean time, or for those who don't want to replace it, we could just remove the Backup battery. Solving, at least, the battery drain problem.
__________________
Toshiba Libretto 70ct -> Psion -> Palm -> Openmoko Freerunner -> gta02 -> gta04 -> n900 n900 n900 n900
...recycled devices, hack, arduino...
 

The Following User Says Thank You to ric9K For This Useful Post:
pichlo's Avatar
pichlo is offline pichlo
2020-01-29 , 08:48
Posts: 6,447 | Thanked: 20,981 times | Joined on Sep 2012 @ UK
#49
Originally Posted by ric9K View Post
Does this 0.2V makes a difference?
In theory, maybe. In practice, no.
__________________
Русский военный корабль, иди нахуй!
 
Trzyzet is offline Trzyzet
2020-01-29 , 09:34
Posts: 68 | Thanked: 300 times | Joined on Mar 2017
#50
Originally Posted by ric9K View Post
If a defective cap drains the battery, does a li-ion battery also do?
Because Joerg_RW says the original is a li-ion battery not a cap. (post #1)
That's not a battery. For very long time I also thought this component is a battery but no - This is a capacitor. It should have even its parameters on the side
Originally Posted by ric9K View Post
Also, he says we could replace the bupbat with a 3.2V cap, not a 3V.
Does this 0.2V makes a difference?
Does not matter in this case.
Originally Posted by ric9K View Post
In the mean time, or for those who don't want to replace it, we could just remove the Backup battery. Solving, at least, the battery drain problem.
Exactly, if you can't find or solder a new one, you can just remove it to prevent main battery from draining.
 

The Following 2 Users Say Thank You to Trzyzet For This Useful Post:
Reply
Page 5 of 5 « First 34 5

Tags
battery, clock cmos rtc, hardware hackin, nokia n900, soldering

« Previous Thread | Next Thread »
Thread Tools

 
Forum Jump


All times are GMT. The time now is 20:19.

Contact Us - Home - Archive - Top