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-   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)

dr_frost_dk 2011-02-28 21:37

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:

Originally Posted by immi.shk (Post 957508)
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...? :)

i don't think you have been paying attention to this thread since all importent info is in the 3 first post.....

hmmm where to begin..... and this is really not to be rude......
First it's mAh not MHz, one is battery capacity, other is processor speed......
The Very old samsung you refer to have:
A small screen
A "Slow" Cpu
Limited connectivity (you are not going to browse as much net as on the N900 or other smartphones)
These are just some of the factors that makes your samsung live that long on a charge.

Now your samsung has 2000mAh battery, mine because of the homemade battery has 2763mAh, so no the battery in the samsung will not do better than that, and will be next to impossible and not worth the trouble to fit in the phone.

i hope this "helps" or answers your question.

Storm_11 2011-03-02 08:48

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
my usb connector has just broken, I now have an external charger. Is it possible to do a hack like in the first post, by running the positive and negative connection from the external charger, through the phone, directly to the battery. Whilst the phone is still powered on. Saves the need to swap batteries if this could be done.

Basically:

External charger ->
battery positive and battery negative whilst still plugged into phone and powered on.
Will need to hack a hole in the back cover and connect a 2mm charger port possibly.

Seems very similar to the first post, except i cant see if having that kind of setup negates the need to use the usb charger.

OR. Can I completely ditch going via the external charger, and plug a 2mm charger directly to the battery positive and negative?

KetkuFIN 2011-03-02 09:13

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
I did a little price comparison of power batteries and stumbled upon this: http://www.akkukauppa.com/nokia-5800...-2800-mah.html
Since N900 and 5800 uses the same battery, i thought of buying that one instead of Mugen 2400mAh battery witch costs 95$ (69€)
With doing so i get 400mAh extra for half the price but i have to order mugen battery cover or make a little something from my spare back cover.

dr_frost_dk 2011-03-02 09:16

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:

Originally Posted by Storm_11 (Post 958697)
my usb connector has just broken, I now have an external charger. Is it possible to do a hack like in the first post, by running the positive and negative connection from the external charger, through the phone, directly to the battery. Whilst the phone is still powered on. Saves the need to swap batteries if this could be done.

Basically:

External charger ->
battery positive and battery negative whilst still plugged into phone and powered on.
Will need to hack a hole in the back cover and connect a 2mm charger port possibly.

Seems very similar to the first post, except i cant see if having that kind of setup negates the need to use the usb charger.

OR. Can I completely ditch going via the external charger, and plug a 2mm charger directly to the battery positive and negative?

First:
Do you have a dual battery/mugen battery & XL cover, it will be next to impossible to fit even to very small 2mm plug base in the N900 without some room in the back?

Second:
I use my USB max a couple of times a month, and it is only for data transfer, i charge up doing the day instead of overnight, but it is not hard to use a "basic" charger and have it plugged in all night, it is of course not good for the battery to do a float charge.....

as you can see in Post #2 the 2mm plug is connected to the battery directly, in between the battery's and circuit

And because of this im probably the last one to experience broken USB port :D

dr_frost_dk 2011-03-02 09:17

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:

Originally Posted by KetkuFIN (Post 958712)
I did a little price comparison of power batteries and stumbled upon this: http://www.akkukauppa.com/nokia-5800...-2800-mah.html
Since N900 and 5800 uses the same battery, i thought of buying that one instead of Mugen 2400mAh battery witch costs 95$ (69€)
With doing so i get 400mAh extra for half the price but i have to order mugen battery cover or make a little something from my spare back cover.

Again i have to point out that this wont fit, go back to between page 2 - 6 and see why.

Look at the pins and look at your N900 and see if you could get it to fit....


EDIT: sorry it is located here http://talk.maemo.org/showthread.php?t=64106&page=2

KetkuFIN 2011-03-02 09:24

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:

Originally Posted by dr_frost_dk (Post 958715)
Again i have to point out that this wont fit, go back to between page 2 - 6 and see why.

Look at the pins and look at your N900 and see if you could get it to fit....


EDIT: sorry it is located here http://talk.maemo.org/showthread.php?t=64106&page=2

Ah, you are absolutely right. I did not remember that on 5800 the battery goes pin side up, i had to check it from my ex 5800.
sorry about my stupidness :D

dr_frost_dk 2011-03-02 09:31

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:

Originally Posted by KetkuFIN (Post 958718)
Ah, you are absolutely right. I did not remember that on 5800 the battery goes pin side up, i had to check it from my ex 5800.
sorry about my stupidness :D

it's ok, it's a common mistake, because we know the the BL-5J is used for a whole range of phones, it would be nice it they did fit, a cheaper option.
Until then the only cheaper option is to make it your self like my dual battery.

I have been using my dual japod for 2.5 months now with no problems

Storm_11 2011-03-02 11:21

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:

Originally Posted by dr_frost_dk (Post 958713)
First:
Do you have a dual battery/mugen battery & XL cover, it will be next to impossible to fit even to very small 2mm plug base in the N900 without some room in the back?

Second:
I use my USB max a couple of times a month, and it is only for data transfer, i charge up doing the day instead of overnight, but it is not hard to use a "basic" charger and have it plugged in all night, it is of course not good for the battery to do a float charge.....

as you can see in Post #2 the 2mm plug is connected to the battery directly, in between the battery's and circuit

And because of this im probably the last one to experience broken USB port :D

I don't have the case yet.... still weighing up my options.

So connecting the 2mm plug which outputs 5v... directly to the battery (which is only 3.7v) along with the phone circuitry, isnt going to ruin anything or cause overvoltage damage? I could also go from my external battery charger with wires to the same battery/circuitry connections....

dr_frost_dk 2011-03-02 12:09

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:

Originally Posted by Storm_11 (Post 958774)
I don't have the case yet.... still weighing up my options.

So connecting the 2mm plug which outputs 5v... directly to the battery (which is only 3.7v) along with the phone circuitry, isnt going to ruin anything or cause overvoltage damage? I could also go from my external battery charger with wires to the same battery/circuitry connections....

my charger puts in 4.23V not 5V, putting 5V in will eventually damage the battery and possible make it vent with or without fire = literally toast N900

A LiPo battery should be charged with between 4.15 - 4.23V.

I only use the 2mm plug system, it is not connected to a normal nokia charger, but it is connected to a LiPo charger, and depending on the mood i have 6 different chargers to choose from, all battery test are of course done with 1 only

Storm_11 2011-03-02 12:26

Re: Battery Tests and Battery Mod / Homemade Mugen Battery
 
Quote:

Originally Posted by dr_frost_dk (Post 958795)
my charger puts in 4.23V not 5V, putting 5V in will eventually damage the battery and possible make it vent with or without fire = literally toast N900

A LiPo battery should be charged with between 4.15 - 4.23V.

I only use the 2mm plug system, it is not connected to a normal nokia charger, but it is connected to a LiPo charger, and depending on the mood i have 6 different chargers to choose from, all battery test are of course done with 1 only

ah ok that makes more sense then. Are you able to operate the phone whilst it is charging?

edit: lipo charger? The same as a li-ion charger thats commonly available for the n900?


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