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Posts: 722 | Thanked: 775 times | Joined on Jan 2012 @ Berlin
#1
Hello friends, i want to start a project and i need some informations about the connectors. I dont get my jolla phone yet, this is why i need your help

I buy a Motorola RAZR MAXX Accu (EB40 - 3200mHa).
Want this builed in my second TOH Backcover.

i hope you guys know the information, or can find out them

is it on the picture the connection to plug a extended battery? If yes, wich one is + and - ?
and i need the dimensions from the connector, if some one have little bit time to check itfor me?




Last edited by cvp; 2014-02-25 at 10:38.
 

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#2


Originally Posted by rainisto View Post
From left to right in that pic orientation.
6. INT (GPIO 1.8V) and 3.3V DC
5. SDA (1.8V) and SCL (1.8V) (i2c)
Unnumbered circle from top to bottom: 5V DC + GND (for example to connect wireless charger, external chargers or extra battery pack).
And the hole next to screw 13 is the rib for cover detection.

Official documentation should be coming 'soonish'.
 
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Posts: 193 | Thanked: 202 times | Joined on Jun 2012 @ Sofia, Bulgaria
#3
I asked similar question and the response was that I2C does not support charge transfer, it should be done via USB. So it would be nice if those pins are USB pins, but if not you have to use external USB cable to plug the new battery in phone's main USB port.
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Posts: 722 | Thanked: 775 times | Joined on Jan 2012 @ Berlin
#4
ok thanks i updated first picture. than i need the another infos

i hope there will charge both accu´s in same time.
 
Posts: 722 | Thanked: 775 times | Joined on Jan 2012 @ Berlin
#5
Originally Posted by kollin View Post
I asked similar question and the response was that I2C does not support charge transfer, it should be done via USB. So it would be nice if those pins are USB pins, but if not you have to use external USB cable to plug the new battery in phone's main USB port.
the 3. pic is old... one month ago we had no infos. but maybe there are 2 pins for the battery. i hope! and i dont want a second accu to.change why the easy way if can take the harder way ?

Last edited by cvp; 2013-12-01 at 17:28.
 
Posts: 722 | Thanked: 775 times | Joined on Jan 2012 @ Berlin
#6
Oh man, so many user have the smartphone and no one has time time to get a Linial?
 
Posts: 722 | Thanked: 775 times | Joined on Jan 2012 @ Berlin
#7
so i get my eb40 accu, i have now the dimensions:

 

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#8
How about this idea?

Slightly adjust your OH with some magnets or whatever and have multiple batteries laying around (and charging ofcourse!) Put a power converter to 5v with micro usb port on the detachable battery!
 
Posts: 722 | Thanked: 775 times | Joined on Jan 2012 @ Berlin
#9
look interessting, but i don´t want a extra case for the jolla phone, because it is fat enough
And i think 3200mAh (+2100 = 5300mAh) is enough to use the phone for 1,5 - 2 Days
 
Posts: 722 | Thanked: 775 times | Joined on Jan 2012 @ Berlin
#10
i see DC=5V, it is for a charger like wireless or solar.
But what happend if i connect a 3,8V Accu? it will be not charge the internal accu, i know that, but will be give extra power if the internal accu is empty??
 
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