Active Topics
-
The N900 is now 15 years old! (7)
to Nokia N900 by Danct12 - 1 day, 18 hrs ago -
Sailfish OS for the Motorola Moto G7 Power (XT1955-5) - (ocean) (4)
to SailfishOS by Maemish - 2 days, 13 hrs ago -
F(x)tec Pro1x (QWERTY) for sale (0)
to Buy & Sell by aln00000 - 4 days, 22 hrs ago - more...
|
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.
Capacitor looks like this:
Last edited by Trzyzet; 2020-01-28 at 08:52.
 |
|
2020-01-28
, 08:33
|
|
Posts: 6,447 |
Thanked: 20,981 times |
Joined on Sep 2012
@ UK
|
#43
|
Originally Posted by Trzyzet
Access Denied
Capacitor looks like this: https://in.element14.com/productimag...B/42264039.jpg
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!
Русский военный корабль, иди нахуй!
|
|
2020-01-28
, 18:55
|
|
Posts: 1,424 |
Thanked: 2,623 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: | ||
 |
|
2020-01-29
, 06:08
|
|
Posts: 584 |
Thanked: 1,550 times |
Joined on Sep 2019
|
#46
|
Originally Posted by Trzyzet
How much does it reduce battery life? I'm trying to assess if I should bother replacing that.
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.
With a battery that is not new, my N900 can go ~ 1 day doing maintenance (ssh, un/installing stuff etc.), more just using it.
 |
|
2020-01-29
, 06:19
|
|
Posts: 1,719 |
Thanked: 4,765 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)
"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)
|
|
2020-01-29
, 07:40
|
|
Posts: 330 |
Thanked: 860 times |
Joined on May 2011
|
#48
|
Originally Posted by Trzyzet
If a defective cap drains the battery, does a li-ion battery also do?
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
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...
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: | ||
|
|
2020-01-29
, 08:48
|
|
Posts: 6,447 |
Thanked: 20,981 times |
Joined on Sep 2012
@ UK
|
#49
|
Originally Posted by ric9K
In theory, maybe. In practice, no.
Does this 0.2V makes a difference?
__________________
Русский военный корабль, иди нахуй!
Русский военный корабль, иди нахуй!
|
|
2020-01-29
, 09:34
|
|
Posts: 68 |
Thanked: 300 times |
Joined on Mar 2017
|
#50
|
Originally Posted by ric9K
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
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)
Originally Posted by ric9K
Does not matter in this case.
Also, he says we could replace the bupbat with a 3.2V cap, not a 3V.
Does this 0.2V makes a difference?
Originally Posted by ric9K
Exactly, if you can't find or solder a new one, you can just remove it to prevent main battery from draining.
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.
 |
| Tags |
| battery, clock cmos rtc, hardware hackin, nokia n900, soldering |
«
Previous Thread
|
Next Thread
»
|
All times are GMT. The time now is 19:09.
It's irrelevant anyway. My N900 has been lying dormant for over two years
Русский военный корабль, иди нахуй!