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specrafi
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Join Date: Mar 2008
Posts: 7

Cell Phone Battery Terminals

03/03/2008 10:06 PM

I am developing a remote fault annunciation system comprising a cell phone controlled by microcontroller. Everything is ok except that I am not able to operate the cell phone using the 3.7 volt regulated power supply assembled by me. The phone works only when the battery is in place and the battery has three terminals & the role of the middle terminal is not known to me. Can any one guide me please ?
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Anonymous Poster
#1

Re: CELL PHONE BATTERY TERMINAL DETAILS REQUIRED

03/03/2008 10:33 PM

the third terminal is for feed back power so that battery may work for long time .it is called Vbs1 terminal which is connected to UEM ic of mobile.If you send me the mobile model no ; Ican help you out how to connect ext. supply to mobile.

vikas jain

vikas_303@rediff.com
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Haajee
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Join Date: Feb 2006
Posts: 1758
Good Answers: 6
#2

Re: Cell Phone Battery Terminals

03/09/2008 12:47 AM

Regards!

See in CR4

http://cr4.globalspec.com/thread/18576/Cell-Phone-Battery-Terminal-Details-Required?frmtrk=CR4digest
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