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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   Battery Tests, Homemade 3000mAh XL Battery & Q&A (POST #1) - New Layout (https://talk.maemo.org/showthread.php?t=65568)

zimon 2011-02-24 15:18
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
My minimum modification version (just two cables soldered to the connectors) still working great. No problems.

Has anyone yet gone through airport hand bag security check with these self made battery modifications? It sure can look suspicious when they x-ray it.

cantruchd 2011-02-26 17:50
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
...

Winner battery so far is Japod 1350mAh@1370mAh from dealextreme

This Post is going to be edited alot of times so check here for updates.


--- If you like the work im doing just click "Thanks!" :) ---
--- since i used beyond 120$ so far making this buyers guide, donations are also welcome :) ---

TAGS: Nokia N900 battery test, best battery[/QUOTE]

Hi dr_frost_dk, do you think it is ok to mix nokia orig. bat with japod bat as you showed in the guide (obviously they are of different capacity...).
Thank you for your reply, I have ordered the mugen and the dx japod and plan to make the bat as your guide say

dr_frost_dk 2011-02-26 17:59
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:
Originally Posted by cantruchd (Post 955989)
...

Winner battery so far is Japod 1350mAh@1370mAh from dealextreme

This Post is going to be edited alot of times so check here for updates.


--- If you like the work im doing just click "Thanks!" :) ---
--- since i used beyond 120$ so far making this buyers guide, donations are also welcome :) ---

TAGS: Nokia N900 battery test, best battery

Hi dr_frost_dk, do you think it is ok to mix nokia orig. bat with japod bat as you showed in the guide (obviously they are of different capacity...).
Thank you for your reply, I have ordered the mugen and the dx japod and plan to make the bat as your guide say
well you will still get a gain if you mix 2 good battery's, the orig battery is only about 50mAh besides japod.

BUT be warned if you do this the instant the first (lowest capacity battery) goes flat the other will go very quickly, meaning you will pretty much not get any low battery warning before the phone will die, here is where i recommend my battery meter in post #3. it pulses the led red when it gets to 15% and lower

one more thing, if your orig battery is over 6 months old the capacity will probably be closer to 1200mAh

cantruchd 2011-02-27 03:13
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:
Originally Posted by dr_frost_dk (Post 955995)
well you will still get a gain if you mix 2 good battery's, the orig battery is only about 50mAh besides japod.

BUT be warned if you do this the instant the first (lowest capacity battery) goes flat the other will go very quickly, meaning you will pretty much not get any low batter

y warning before the phone will die, here is where i recommend my battery meter in post #3. it pulses the led red when it gets to 15% and lower

one more thing, if your orig battery is over 6 months old the capacity will probably be closer to 1200mAh
i wonder that if the two batteries are significantly different in capacity and they are both flat when connected will they be charged and discharge at the same time (both go to full and discharge to flat at the same time)?

dr_frost_dk 2011-02-27 20:09
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:
Originally Posted by cantruchd (Post 956190)
i wonder that if the two batteries are significantly different in capacity and they are both flat when connected will they be charged and discharge at the same time (both go to full and discharge to flat at the same time)?
The 'weakest' one will be discharged first and then it will pull down the good one fast, so lets say you use a used orig battery and a japod battery.

1. orig battery is 1200mAh (because of age/usage)
2. japod battery is 1370mAh
This should equal 2570mAh but because the 1. will be drained first and then drag the 2. with it you will at best get closer to 2100mAh

And there is always the chance of beyond deep discharge which will destroy the 1. battery.
But more likely is that since the 1. battery will drag the 2. battery down fast when the voltage approaches 3.6V (less then 15%) the N900 will at this point see about 3.3V and shutdown, and again this will mean that you will not get any warning before the N900 shuts off to protect the battery

extendedping 2011-02-27 21:15
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Hi Dr, any update if we might be able to replace the default crummy candle with one that reflects your qbw app? I actually removed the candle but then the n900 never said if it was changing any more so I had to put it back...

dr_frost_dk 2011-02-27 21:46
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
no removing the "candle" does disable all messages

BUT all functions still work, if you look at the battery meter when charging and the "candle" disabled you can see that it does gain V/% of course give it a few minutes before clicking to update or wait 5 minutes for auto update (default setting)

cantruchd 2011-02-28 04:01
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:
Originally Posted by dr_frost_dk (Post 956795)
The 'weakest' one will be discharged first and then it will pull down the good one fast, so lets say you use a used orig battery and a japod battery.

1. orig battery is 1200mAh (because of age/usage)
2. japod battery is 1370mAh
This should equal 2570mAh but because the 1. will be drained first and then drag the 2. with it you will at best get closer to 2100mAh

And there is always the chance of beyond deep discharge which will destroy the 1. battery.
But more likely is that since the 1. battery will drag the 2. battery down fast when the voltage approaches 3.6V (less then 15%) the N900 will at this point see about 3.3V and shutdown, and again this will mean that you will not get any warning before the N900 shuts off to protect the battery
Hi dr_frost,
Thank you for your reply, so it seems there should be 2 japod for connecting now.

dr_frost_dk 2011-02-28 17:57
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
GOLD Battery tested

It's BAD & GOOD????? hehe

as always see page #1, post #1 for results

-------------------------------------------------------------

Quote:
Originally Posted by cantruchd (Post 957006)
Hi dr_frost,
Thank you for your reply, so it seems there should be 2 japod for connecting now.
Yes this would be best.

immi.shk 2011-02-28 18:48
Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Hey, hav you herd about "Samsung E2370" its a simple phone with an Extraordinary battery "2000 MHz"... i own it and get a backup of 6 to 7 days on normal usage....
www.gsmarena.com/samsung_e2370_xcover-3152.php
So... my question is is their any way of using its battery in N900...? :)


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