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beastlykings Posts: 2

I'm trying to test how much power my phone is using by using a multimeter to test how many milliamps it is pulling. I have the battery removed from the phone and all three terminals wired into their respective places, I then intercept the positive terminal with my multimeter by placing the positive lead on the positive terminal of the battery, and the negative lead on the postive terminal of the phone. I then start the phone, it registers about 200 or so milliamps for a couple of seconds, and then just before the screen would light up, it rather quickly drops to about 75 milliamps, then nothing, and the phone never starts. I know its not the wiring because if, using the same set up, I connect the positive terminals directly with no multimeter then it starts up fine.

What could be causing this? What could I change so that I can test the idle power draw of the phone? Or can someone tell me the idle power draw of the phone?

I want to know because I want to put some solar cells on the back of the phone, along with some diodes and a overcharge protection chip all wired to the battery, to charge the phone. But I'm worried the 90mA my cells would put out would not be enough to effectively trickle charge the phone.

Any ideas? Also if anything needs clarification feel free to ask

-BK
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Posted: 2009-04-22 19:07:31
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akubest90 Posts: 12

wow! solar cell? where u got that?
I using w760i too, all i can say is the battery is so weak... I really hate that part of my phone. why u dont just find it in manual book..
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Posted: 2009-04-24 10:40:07
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aquared29 Posts: > 500

u must be highly skilled to do that, converting it to solar cell, but thats a great idea

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Posted: 2009-04-24 10:49:12
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yea g Posts: > 500

Sometimes the power changes through the multi meter. I know for a fact that the 10A socket (or 20-50A on some higher end ones) is dedicated to amps, so try using that plug.
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Posted: 2009-04-24 11:16:48
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beastlykings Posts: 2

@akubest90
Yea this thing doesn't exactly sip power LOL
I plan on getting them here: https://www.solarbotics.com/products/scc3733/

@aquared29
No not really, I actually just seen somebody put solar cells on something else in a similar fashion and it gave me this idea. It might not even work but I'd like to give it a try, thanks tho!

@yea g
I thought it might be something like that, sadly all I've got is an older analog tester that can only test up to 250mA. I plan on getting a new one soon tho! Thinking of this one: http://www.radioshack.com/product/index.jsp?productId=2103176

Thanks for all the replies! Hopefully we can figure this out

-BK
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Posted: 2009-04-25 17:38:17
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chandu17 Posts: 344

Hey! Thats good idea.but i think you no need to do that much of process.i heard that a software that will display the current and the temperature.

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Posted: 2009-05-01 07:42:00
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carkitter Posts: > 500

On 2009-05-01 07:42:00, chandu17 wrote:
Hey! Thats good idea.but i think you no need to do that much of process.i heard that a software that will display the current and the temperature.

MyPhoneExplorer monitors charge rate and current.
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Posted: 2009-05-01 13:18:49
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chandu17 Posts: 344

Hey! Thats not the my phone explorer i think that is a patch that will displays current and temp at the top of the phones display.
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Posted: 2009-05-01 16:17:00
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