[Q] Use E4GT straight from power source without the battery

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ctbearz

Member
Jan 22, 2012
48
3
Does anyone know how to achieve this? I would suspect shorting the 3 leads (or a combination) in the battery compartment without the battery inserted and while plugged into a usb AC adapter would do the trick. However, I don't know the exact electrical layout of those leads....

Great for long road trips (gps + dashcam usage) or tethering so as not the wear out the battery prematurely. ;)
 

Overstew

Senior Member
Oct 3, 2010
3,980
1,665
Take the battery out and plug the phone in. :p

Sent from my SPH-D710 using Tapatalk
 

ctbearz

Member
Jan 22, 2012
48
3
If one can jumper the connections to mimic a full battery...then it should be able to run off a power source such as a wall socket AC adapter or usb car adapter. Of course, the resistance of the battery should be taken into consideration when doing so. I just need the pin outs for those leads....

The battery temperature gets way hot...into the high 40s C when tethering, which is definitely not conducive to prolonged battery life.
 

ctbearz

Member
Jan 22, 2012
48
3
What he said... why would you want this anyway?

Sent from my SPH-D710 using Tapatalk

Well..as i said before. The two main reasons for this is while Tethering and when using it as a Dash Cam + GPS while driving. The phone gets incredibly hot along with the battery temperature. Eliminating the battery will relieve the extra temperature as well as preserve battery health.
 

phatmanxxl

Senior Member
Dec 30, 2008
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Well..as i said before. The two main reasons for this is while Tethering and when using it as a Dash Cam + GPS while driving. The phone gets incredibly hot along with the battery temperature. Eliminating the battery will relieve the extra temperature as well as preserve battery health.

I just took a 9 hour road trip and used sprint hot spot for tethering a handful of devices in the vehicle. What I did was take the back off the phone, let it sit over the windshield vent and had cool air blow into it. It stayed nice and cool. I used an unactivated phone for Google nav using wifi.

Tethering maxes out the processor for a long period of time, that's why it always gets hot.
 

ctbearz

Member
Jan 22, 2012
48
3
I just took a 9 hour road trip and used sprint hot spot for tethering a handful of devices in the vehicle. What I did was take the back off the phone, let it sit over the windshield vent and had cool air blow into it. It stayed nice and cool. I used an unactivated phone for Google nav using wifi.

Tethering maxes out the processor for a long period of time, that's why it always gets hot.

Thanks! That's a great idea. Oh wow...wifi hotspot eats up the battery like no other, which brings me to my next question.

What USB Car Adapter did you use with it? I've read that typical 1Amp usb car adapters are unable to charge or even maintain battery level when cellphone is running with all radios enabled due to the large amount of power draw. I'm looking at a small and very discreet 2Amp usb car adapter, which should be able to provide enough juice for the phone running with all radios on.

Some considerations I've been looking at:

http://www.amazon.com/Miccus-Charge...1?s=electronics&ie=UTF8&qid=1329682002&sr=1-1
http://www.amazon.com/Satechi-ST-24...?s=electronics&ie=UTF8&qid=1329682002&sr=1-17
http://www.amazon.com/Griffin-Power...1?s=electronics&ie=UTF8&qid=1329681948&sr=1-1
http://www.amazon.com/Kensington-K3...?s=electronics&ie=UTF8&qid=1329681948&sr=1-10
 
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JBTY

Senior Member
Feb 24, 2011
242
44
Mayaguez - Puerto Rico USA
If you look on the battery you will see which pins are positive and negative but i seriously do not recommend doing that. It would probably work but it would be very risky if those power leads touch "short out" your phone is dead, you never "short out" electrical connections especially on a phone! unless you want to short out your phone (very bad!) :rolleyes:

I think the best thing you can do is get an extended battery so you can tether without having to charge at the same time, and that way the battery shouldnt heat up that much, as well as last alot longer. However if your gonna go 9 hours :eek: then you should definitely stick it in a A/C vent or something!
 

oscarthegrouch

Senior Member
Jun 19, 2011
1,723
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m.bestbuy.com/m/e/product/detail.jsp?skuId=1232905&pid=1218239487283#customer-overview

Or for $3 more

m.bestbuy.com/m/e/product/detail.jsp?skuId=2683573&pid=1218452837981
On sale now down from $40.

It probably still won't keep up with all that current drain you're producing. My suggestion is to get a real gps for around a $100 like an entry level Garmin and be done with it.

Here's one on sale now
m.bestbuy.com/m/e/product/detail.jsp?skuId=2884094&pid=1218361288962#customer-overview

Nice basic one that will get the job done and people are giving it great reviews. A real GPS is going to work so much better than a phone.
 

phatmanxxl

Senior Member
Dec 30, 2008
5,051
1,118
LG V20
Nokia Lumia 520
Thanks! That's a great idea. Oh wow...wifi hotspot eats up the battery like no other, which brings me to my next question.

What USB Car Adapter did you use with it? I've read that typical 1Amp usb car adapters are unable to charge or even maintain battery level when cellphone is running with all radios enabled due to the large amount of power draw. I'm looking at a small and very discreet 2Amp usb car adapter, which should be able to provide enough juice for the phone running with all radios on.

Some considerations I've been looking at:

http://www.amazon.com/Miccus-Charge...1?s=electronics&ie=UTF8&qid=1329682002&sr=1-1
http://www.amazon.com/Satechi-ST-24...?s=electronics&ie=UTF8&qid=1329682002&sr=1-17
http://www.amazon.com/Griffin-Power...1?s=electronics&ie=UTF8&qid=1329681948&sr=1-1
http://www.amazon.com/Kensington-K3...?s=electronics&ie=UTF8&qid=1329681948&sr=1-10

I had a power converter and used the outlet charger and USB that came with the phone. Yes the phone did loose power while on the charger, but didn't go dead.

Anything that's 1A 5 watts is the maximum the phone will accept. I wouldn't advise going over 1 amp.

I used the Griffin charger before. I don't think it kicks out the power as advertised. My phones always charged very slowly with that charger.
 
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