Hot Swap Batteries? - G3 Q&A, Help & Troubleshooting

Is it possible to hot swap batteries in the G3 without turning the phone off?

JJ2525 said:
Is it possible to hot swap batteries in the G3 without turning the phone off?
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Plug it in to charger and take battery out. Then you know. Lol tgif
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crzygrmn said:
Plug it in to charger and take battery out. Then you know. Lol tgif
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Nah, power cuts off even with the power plugged in. I don't think it is possible to use the phone at all without the battery inserted.

No, it's not possible. How do you think that would work? You'd have to build some kind of adapter that connects the batteries in parallel, so you can put in the second battery while the first one is still powering the device. But that won't work because you REALLY shouldn't connect a full and an empty battery in parallel.

Related

(Q) External battery charging issue

Does anyone else have this issue?
I recently bought the extra battery and charger (that comes with the second batttery) and here within the last few days, I have been charging the unused battery overnight and then it turns greens sometime during the night and then in the morning when I go to put it into my phone, it boots up but states battery life at always less that 60 instead of the full 100%.
So if anyone knows as to why this may be happening, I would greatly appreciate any feedback on this issue that has me pissed.
Thanks in advance and also if somthing like this has been posted then I apologize. I searched and did not see anything along this matter.
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So ur not charging battery from ur phone? Try doing that and see if it does the same thing. Is u phone rooted? If it is, than there is a possible resolition.
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The external charger may be shutting off too soon. Do what Lord said.
Also please put a subject in when you start a thread like "External charged battery only shows 60%"
LORDFIRE00 said:
So ur not charging battery from ur phone? Try doing that and see if it does the same thing. Is u phone rooted? If it is, than there is a possible resolition.
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I tried that and when I charge it from my phone its does do a full charge and yes I am rooted.
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Bad charger then.
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kennyglass123 said:
Bad charger then.
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Its the same charger I plug into the the spare battery case thing to charge and the light stays red for a long time then it turns green as if its done charging but when inserted battery into phone and power up, its usually around 60% charged or less. But I pull charger out of the spare battery holder and plug directly into my phone and it charges to full ballery.
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Then u have a semi bad battery
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The battery holder like the phone has a sensor that tells it when to stop. It is working incorrectly....broken.
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[Q] Epic only turns on when plugged in?

My phone is only turning on when it is plugged in. The battery level is close to full.
When I take out the battery and put it back in without being plugged in, the battery meter shows empty. When I plug it it, it shows green and charge LED is on and it turns on fine when I press the power button.
I just am running EL30 from ODIN. No root.
Sounds like a bad battery.
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Did you leave it out in the rain? My gf did that with her Prevail and now it always thinks it's charging on and off and when the phone is off it will only turn on plugged into the charger. We replaced the battery so that wasn't the issue.
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The Best Buy Black Tie sent me a replacement crap 1200 mah battery. It charged to full and as soon as I unplugged it the phone shut off. That is why I thought of the battery.
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ohmyword said:
My phone is only turning on when it is plugged in. The battery level is close to full.
When I take out the battery and put it back in without being plugged in, the battery meter shows empty. When I plug it it, it shows green and charge LED is on and it turns on fine when I press the power button.
I just am running EL30 from ODIN. No root.
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When the phone turns on does it automatically shut off after a few seconds? When I had the GG battery it did that thy replaced it for free but they suck compared to hyperion.
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kennyglass123 said:
The Best Buy Black Tie sent me a replacement crap 1200 mah battery. It charged to full and as soon as I unplugged it the phone shut off. That is why I thought of the battery.
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It's not the battery. I switched batteries with another epic and had the same problem. The other epic was fine with my batter.
XxLostSoulxX said:
When the phone turns on does it automatically shut off after a few seconds? When I had the GG battery it did that thy replaced it for free but they suck compared to hyperion.
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THe phone is perfectly normal other than needing to be plugged in to turn on. I did notice that when I unplug the charger/usb it takes a while for the LED to turn off and also it always thinks the is something plugged because the notification bar always has "USB connected".
Also check your battery terminals in the phone. All 3 should be the same and perfectly aligned and able to contact the battery.
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UPDATE: There was no fix for this. Had to take it to sprint for a replacement. I think there was something wrong with the usb port where it would think that there was plugged in all the time.
Sounds right
Yeah that definitely sounds like the USB port is fubar'd. Sorry mate

[SOLVED] Charging problem

I have read somewhere that when you charge your phone and you use it that it still should charge.. But when I use my phone while charging it discharges and pretty quickly too.. Is this caused by a bad battery or is my charger broken?
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mrgnex said:
I have read somewhere that when you charge your phone and you use it that it still should charge.. But when I use my phone while charging it discharges and pretty quickly too.. Is this caused by a bad battery or is my charger broken?
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well if you're charging via pc/usb slot charging will take some time and especially if u play games/chat/hangouts/facebook and other power hungry apps
Seraz007 said:
well if you're charging via pc/usb slot charging will take some time and especially if u play games/chat/hangouts/facebook and other power hungry apps
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No its just from the wall And when I charge I am just using whatsapp land browsing some..
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hmm that's weird
sorry can't help ya out
Seraz007 said:
hmm that's weird
sorry can't help ya out
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Thanks for trying
Anyone else who can help me out?
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If it takes too long to get a full charge when using the power socket you might want to try to check your battery.
mrgnex said:
I have read somewhere that when you charge your phone and you use it that it still should charge.. But when I use my phone while charging it discharges and pretty quickly too.. Is this caused by a bad battery or is my charger broken?
Sent from my Galaxy Nexus using XDA Premium HD app
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Are you using the original charger and cable? I thought I'd read somewhere that not all USB cables can handle the 2 amp current. I'm not sure how accurate this is.
Original charger? The original charger can provide 1.0A, check what's written on your charger. USB cable could also be the problem. Other tips is to lower the brightness, it will save battery.
mrgnex said:
I have read somewhere that when you charge your phone and you use it that it still should charge.. But when I use my phone while charging it discharges and pretty quickly too.. Is this caused by a bad battery or is my charger broken?
Sent from my Galaxy Nexus using XDA Premium HD app
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I had this problem couple of months back. Changed the charger and that fixed the issue. Try changing the cable or the charger itself.
sarkar1990 said:
I had this problem couple of months back. Changed the charger and that fixed the issue. Try changing the cable or the charger itself.
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Thanks I got it figured.. I had an USB extension cable because the orginal cable is kinda short. But apparantly the extension cable couldnt handle the amps
mrgnex said:
Thanks I got it figured.. I had an USB extension cable because the orginal cable is kinda short. But apparantly the extension cable couldnt handle the amps
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Glad that you got it going! :good:

[Q]Charging

Hey guys, I'm having a problem. So recently, I have been noticing that my charge is much slower, then I realised that even though the charger is plugged to wall socket, the charge speed is as of a USB charge. Any suggestions on what I should do?
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Maybe the battery calibration will do the trick ..
iDelta said:
Hey guys, I'm having a problem. So recently, I have been noticing that my charge is much slower, then I realised that even though the charger is plugged to wall socket, the charge speed is as of a USB charge. Any suggestions on what I should do?
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Pristine way right? How that can be happening? Maybe you can use fast charge from google play, as sir arco make it compatible with his roms. But actually it is not necessary to do that as you plug in to wall socket. But you can give it a try.
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geniusboy93 said:
Pristine way right? How that can be happening? Maybe you can use fast charge from google play, as sir arco make it compatible with his roms. But actually it is not necessary to do that as you plug in to wall socket. But you can give it a try.
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Okay, just wanted to ask, is this charge speed fast?
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iDelta said:
Okay, just wanted to ask, is this charge speed fast?
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No. That's battery calibration apps. This is fast charge app: https://play.google.com/store/apps/details?id=nz.org.winters.android.gnfastcharge
Before connect to charger, open the app, give superuser permission then on it. The plug your charger. It should change to ac charge. Actually it function as if we want to charge it using usb and plug in at laptop, or maybe in car that have usb. So we don't need charger that can plug in the car. Give it a try. Cheers
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geniusboy93 said:
No. That's battery calibration apps. This is fast charge app: https://play.google.com/store/apps/details?id=nz.org.winters.android.gnfastcharge
Before connect to charger, open the app, give superuser permission then on it. The plug your charger. It should change to ac charge. Actually it function as if we want to charge it using usb and plug in at laptop, or maybe in car that have usb. So we don't need charger that can plug in the car. Give it a try. Cheers
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Thanks. Just tried it, says AC, but the charge is 3V. Is that slow?
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iDelta said:
Thanks. Just tried it, says AC, but the charge is 3V. Is that slow?
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I don't know. But i think it should be 4V. Hmm, i think you should wait and see is it slow or fast. Because i don't really know sorry
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geniusboy93 said:
I don't know. But i think it should be 4V. Hmm, i think you should wait and see is it slow or fast. Because i don't really know sorry
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Thanks for your help bro, ill try it on another socket.
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redshift9 said:
Maybe the battery calibration will do the trick ..
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LoL. Another beliver in myths and little green ghosts inside an Android phone. No offence meant, but it´s a pain explaining over and over this is just a myth and giving real facts many people still ignore even after being proven why it´s a myth.
iDelta said:
Thanks. Just tried it, says AC, but the charge is 3V. Is that slow?
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Don´t belive in what some apps are you showing. Take a DMM and check the voltages yourself. Your charger should output 5V and your battery should have 4.2V when it´s fully charged and something between 3.0-3.6 when discharged.
Myabe your charger is dying or its the battery. Either way no software will fix this, nor whiping battery stats which Android is doing on each reboot, nor green Android ghosts.
First check the voltages and try an other charger. Secound if needed replace the battery against a new one because it may also be the battery which is dying where it´s internal resistance is growing and so reducing the charging current.
The max charging current should be around 0.7 x capacity as charging with higher currents will decrase its lifetime.
It´s not worth using FastCharge. Neither for the lifetime nor for the risk to get your battery exploded, as this is growing too with higher currents.
Currently cargers are dirt cheap. You can get one with 1Ampere output for around $3-4. A replacement battery costs about $10-20.
honeyx said:
LoL. Another beliver in myths and little green ghosts inside an Android phone.
Don´t belive in what some apps are you showing. Take a DMM and check the voltages yourself. Your charger should output 5V and your battery should have 4.2V when it´s fully charged and something between 3.0-3.6 when discharged.
Myabe your charger is dying or its the battery. Either way no software will fix this, nor whiping battery stats which Android is doing on each reboot, nor green Android ghosts.
First check the voltages and try an other charger. Secound if needed replace the battery against a new one because it may also be the battery which is dying where it´s internal resistance is growing and so reducing the charging current.
The max charging current should be around 0.7 x capacity as charging with higher currents will decrase its lifetime.
It´s not worth using FastCharge. Neither for the lifetime nor for the risk to get your battery exploded, as this is growing too with higher currents.
Currently cargers are dirt cheap. You can get one with 1Ampere output for around $3-4. A replacement battery costs about $10-20.
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I recently bought a new battery, which ironically is $39 for a non-original battery, whereas the Samsung battery was charging $52... I think the cause is the charger, it has been relentlessly supporting me for one and a half years and I think its time to say goodbye to it.
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Yes, I have had already a lot of chargers dying. Disassembled them all and they all are using the same circuit. They are made dirt cheap and it´s production costs will be about 50 cent. The only better quality circuit I came across was from a charger made by Sony. This one was even worth to be repaired but if it comes to the other cheap ones I´m just throwing them away and replacing with new ones.
Just wounder why the batteries are so expencive in your area.
honeyx said:
Yes, I have had already a lot of chargers dying. Disassembled them all and they all are using the same circuit. They are made dirt cheap and it´s production costs will be about 50 cent. The only better quality circuit I came across was from a charger made by Sony. This one was even worth to be repaired but if it comes to the other cheap ones I´m just throwing them away and replacing with new ones.
Just wounder why the batteries are so expencive in your area.
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Well, that's what happens when you live in the sixth most expensive country in the world...
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Phone on with no battery?

Hey guys basically I upgraded to a nexus 5. I want to turn my Optimus into a permanent installation in my car. But I don't want to leave the battery plugged in all the time. I tried removing it but the phone won't power up without the battery in it. Any simple tricks that I could use?
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Chyrio said:
Hey guys basically I upgraded to a nexus 5. I want to turn my Optimus into a permanent installation in my car. But I don't want to leave the battery plugged in all the time. I tried removing it but the phone won't power up without the battery in it. Any simple tricks that I could use?
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why dont you want the battery? unless you want it to turn off with the car, then your're gonna need something to do it for you. maybe when power plugs in.
Chyrio said:
Hey guys basically I upgraded to a nexus 5. I want to turn my Optimus into a permanent installation in my car. But I don't want to leave the battery plugged in all the time. I tried removing it but the phone won't power up without the battery in it. Any simple tricks that I could use?
Sent from my Nexus 5 using Tapatalk
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It would be pretty easy to wire the cigarette lighters power wire to the ignition so it only comes on and starts to charge while the car is on.
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But I don't want it to charge. The phone is going to be built into the car non removable. I don't want the battery the be constantly trickle charging so it damages it.
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Chyrio said:
But I don't want it to charge. The phone is going to be built into the car non removable. I don't want the battery the be constantly trickle charging so it damages it.
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You might be SOL here, man. If the phone doesn't turn on with a power source with the battery removed (Like Samsung phones can do), its probably not possible.
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Chyrio said:
But I don't want it to charge. The phone is going to be built into the car non removable. I don't want the battery the be constantly trickle charging so it damages it.
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What is wrong with just replacing the battery when it dies? Also in another six months the LG OG will probably be under $100 then.

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