Database Users

Samsung Epic battery won't charge!!

When I got my Epic the battery was at 50% like expected. I immediately plugged it in when I got home and it seemed like it was charging because the charging light was on and the battery indicator was showing charge.
About 1 hour later I had to leave for class and I unplugged my epic. It stated it was 15% battery left and gave me the sad low battery notification.
I plugged my epic into the wall at school and let it charge a good 2 hours. Throughout the charge the battery would NOT GO ABOVE 15%. I finally unplugged it a few minutes ago, and STILL the battery is at 15%.
Is there any way to reset the battery stats or is this a faulty unit?? I called my radioshack nd they stated they can do a phone swap for me BUT THEY DON'T KNOW WHEN THEY WILL GET MORE EPICS IN. WTF. I obviously can't use a phone that won't charge..... I saw a similar problem on androidcentral forums, where someones epic wouldn't charge over 80%.
My radioshack lady said to take out the battery and reset the phone. I've done this 3 or 4 times and still the battery registers 15%.
Sent from my SPH-D700 using XDA App

I'm having the exact same problem except my phone always thinks the battery is at 0%. Even when plugged in to charge, the phone will still occasionally die. It's very likely that I'm just making some silly mistake though, as the Epic is my first Android phone.

I had on USB debugging but I don't think that should affect charging through usb. I don know what's wrong with the charging port or the battery. But its definately going DOWN. Now its blinking at 0% with no way to charge it.
I'm wondering if I let the battery die and try to charge it to see if it will fix the battery.....
Sent from my SPH-D700 using XDA App

Same issues until i plugged it into a wallcharger.. now im good

meaning a non usb charger

I have tried the usb wall charger that came with the phone, and also a generic microusb charger. Both light up the notification charging light, and then the battery shows the charging..... still won't go above 15%.
Argh!
Sent from my SPH-D700 using XDA App

easy fix guys....
be sure to use the original charger and usb cable.
plug in the charger to the wall, then plug the usb into the charger, then plug the phone into the usb....
follow these steps exactly and it should start charging......
(in the future, dont let your phone completely die)
PS: this issue affects ALL epics when they die completely so dont bother taking your phone into sprint. they will not replace it because the replacement would do the same. (2.2 should fix this..... its only a couple weeks away)
hope that helps!! ENJOY YOUR EPIC!!!

jbarajasp said:
easy fix guys....
be sure to use the original charger and usb cable.
plug in the charger to the wall, then plug the usb into the charger, then plug the phone into the usb....
follow these steps exactly and it should start charging......
(in the future, dont let your phone completely die)
PS: this issue affects ALL epics when they die completely so dont bother taking your phone into sprint. they will not replace it because the replacement would do the same. (2.2 should fix this..... its only a couple weeks away)
hope that helps!! ENJOY YOUR EPIC!!!
Click to expand...
Click to collapse
I have tried this, charger into wall, then cable into charger, then usb into phone.
Still phone will not charge.
If I unplugg the charger, it says the battery is empty.
Sent from my SPH-D700 using XDA App

aww man that sucks, maybe the battery is defective? u should try going to the sprint corporate store that does repairs. they should be able to test the battery and if its defective give u a new one.Its still under warranty, and if u have TEP it definitely is covered.

My Epic was experiencing the same issue. When I first got it today, it was gradually charging fine via my new Thinkpad's USB port. But then for some reason, "Battery Indicator" showed the charge going down, even though the red LED and the battery icon indicated that the phone was being charged. So did my lock-pattern screen. I called my local store for a replacement.
The phone wouldn't charge while I had the rubberized phone cover on, bought from the Sprint store. Also, the phone felt very warm, so I took the cover off, opened the battery cover to see how hot the battery was. It didn't feel too hot to the touch. I removed the battery, put it back in, powered the phone back on, and saw a huge green battery charge icon, but alternating with an icon with what I think was a yellow warning sign, and a thermometer on it. So I left the Sprint rubberized phone cover off, and recycled the power on the phone.
After the phone fully loaded up, I tried USB-charging the phone. Now, it's gradually charging up (was down to 14%, now back up to 19%). The phone feels cooler, too.
I'm leaving the replacement option on the table in case my phone turns for the worst. I rely on the phone for work and business so can't be without a phone. Maybe I should reconsider getting a land-line or VOIP service again. But maybe, this being a brand-new phone, the battery needs to be cycled a few times before it stops acting unusually. I'll try the wall charger before I head to bed tonight, and see what happens tomorrow.

Here is my findings after putzing with it all day. I was using two chargers. Both griffin's. One was cigarette plug to usb with an output capacity of 1 amp. I also have a wall one that has a usb port and is meant for an ipad. They need lots of current to charge them and this one is capable of 3 amps.
Using the evo, both could charge it and run the phone at the same time. The battery percentage would always increase. With both of these chargers on the epic, even though the charge light would be red, if I was using the phone, it was not charging and it was pulling off the battery to run the phone.
This should not act like this. I have read that these screens are supposed to be more power efficient, but I don't notice that. I do not know if the power regulator in the phone is wimpy or not but I noticed that when I played something loud through the speaker, the screen backlighting would dim when the sounds peaked. Come on! An amp and a half battery in this phone should be able to handle that.
Here are some more observations. About three hours before I was to go home, I would either put the phone on the griffin wall charger when I was inside or I would put it on the griffin 12v adapter when I was in the car. Finally around 45 minutes before quitting time, the charging led went blue. I was mostly charging the last hour with the phone off. I turned it on but kept it plugged in. By the time the home screen came up and everything settled down, the battery would be at 95%. I was like wtf. I left it on until it charged up and the light went blue. The battery was at 96% at full charge.
I kept hitting it with the charger. Unplug it for a few seconds then plug it back in. I repeated this many times. I would also charge until blue then turn off and let charge until blue. I would follow that cycle for awhile.
Lastly, I left it turned on and charging but would unplug it for a few seconds then plug back in. The maximum % would inch higher and higher. I got it up to 98%. Then I noticed that when the screen came on to tell me it was fully charged, it was at 100 for maybe a second or two then it would drop to 98. I suspect the screen was causing the drop. All the time I have been typing this, I have gone from 98 to 90 while on wifi, screen minimum brightness and using hardware keyboard.
This was my battery and charging findings for today. Add this to the theories out there flying around.

I find that completely unacceptable if the phone can't charge if being in use....
I plugged it in the way mentioned earlier for about 30 minutes while I was waiting on a friend. The charge went up to 15% but 15% isn't gonna last me longer than a hour of use which isn't usable.
It stil won't go above 15%.... I'm gonna leave it alone for a hour and see if it will charge, but a phone that can't charge isn't of use to me.
And judging from what everyone says its not even a hardware error, if there are many people with the problem.....
Sent from my SPH-D700 using XDA App

is this a defect, or is this only isolated to some phones?

herbthehammer said:
Using the evo, both could charge it and run the phone at the same time. The battery percentage would always increase. With both of these chargers on the epic, even though the charge light would be red, if I was using the phone, it was not charging and it was pulling off the battery to run the phone.
Click to expand...
Click to collapse
Ive been testing finding battery charge of 2% every 10 min while connected to desktop charger Telanav enabled so somethings definitely wrong with your device.
I would take back asap swap for new

So I just got home and plugged my Epic in yet again. After about 30 minutes of charging my battery is at 20%.
Still way slow but the battery has gone above the 15% sliver of battery.....
I'm thinking its because the battery has to be conditioned... I'm gonna charge it for a day to see if the battery performance changes...
Sent from my SPH-D700 using XDA App

I'm gonna try turning off the phone while it's charging at night and see what happens. Or I could try the htc evo battery conditioning suggestion.
Full 8 hour charge on. Disconnect charger and turn off phone. Charge off for an hour. Turn on and wait a couple minutes then turn off and charge for a hour. I think maybe charging the crap out of it might condition the battery some.
Maybe kinda like filling your gas tank up until the lever pops. Then slowly keep filling until it pops again. Then push the rear of the car up and down and side to side to try and get the tank to burp out any air pockets. Then slowly top it off until it barely overflows the filler pipe. I know, stupid mental picture!
The only questionable thing I have is, after a "full charge" should I run the phone until it shuts off then give it another FULL charge? Some say yes, some say no. Each have their theories.

I noticed that the "Where" application was sucking down a tremendous amount of juice. There are multiple similar complaints for it in the Market. Uninstalled it, and now the phone is charging gradually and steadily.
@ 9:57PM, battery life = 36%. Now @ 10:25PM, battery life = 48%. I'm cautiously optimistic.
With Where installed, "Battery Indicator" displayed a voltage of <3V. After removing it, voltage is now a hair < 4V (3.945V is the latest refreshed value).
I will be following herb's suggestions for conditioning by maxing the battery out tonight. I think I'll run the phone down to 0% tomorrow, once it's fully charged to the hilt.
Even so, I still intend to exchanging this unit out because I'm also experiencing issues with the Back soft-button.
Considering encasing it in that Sprint rubberized casing tomorrow to see if it affects the battery life.

My Epic has no problems except for the battery being slow to charge, but i charged it to 80ish in about 2 hours.
If anything, I will try to switch it for a new battery.

I just thought of something that may be nothing. Did anyone, like myself, update google maps to 4.4.0? I am going to try something and see if it helps.
In battery use details, in the about phone under menu, what is your highest battery consumption? My display is pegged all the way and it is at 70%. The next closest is cell standy 14. Then browser is 9, system is 4, idle is 2 and os is 2. I'm going to remove the maps update. I read somewhere that some people suspected the update to eat battery.

I haven't updated the maps app. The screen and standby are the highest ive seen on power usage.
My radioshack wont have any more Epics in until Friday or later.... I'm gonna try to power cycle the battery (if I can leave it off for that long. )

Is swapping fully charged batteries better than recharging in-phone?

I bought an extra battery and charger on my Evo and noticed that recently, my Evo battery is now performing WORSE than the cheap Chinese generic knockoff battery.
The Chinese one use to run about 1 - 1.5days but now runs over 2 days (thanks to new kernel by HTC).
However, the red battery which used to give me 2 - 2.5 days run time (on older kernel), now only runs for 12hrs.
Any ideas?

Are you charging the stock red battery with the Chinese charger? You shouldnt do that. But as far as the chinese batteries, it doesn matter how you charge them.

Go into a battery program, spareparts or batteryinfo widget, and see if they are charging to the same voltage. I have several htc batteries with all about the same use, I have 2 of them that are almost a 100mv lower then the others so I "top" them off by unplugging and replugging them in a few times while charging.

sitlet said:
Are you charging the stock red battery with the Chinese charger? You shouldnt do that. But as far as the chinese batteries, it doesn matter how you charge them.
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Click to collapse
Where did you get this info? The external chinese chargers are a slower, less powerful charge. I get more juice out of the battery than charging it in the phone, due to the quick 10% drop. Everything I have ever read says that slower charging is better for the battery in the long run. Please link where you got this from.

I have 2 batteries, the red one, and one that came with my Hero. I charge them in the cheap charger and rarely actually charge the phone.
I see no difference in battery life.

the whole quick charge tech is no good, my $4 chinese charger (no quick charge crap) works way better then charging in phone, i had an older laptop, one of the first to claim quick charge, with a battery that was wearing down about maybe 90-60min got an external charger that charges slowly and managed to recondition the already 4yr old battery to run 3hrs but went back to charging on laptop and battery slowly ran down again to about 1hr

On my PHILLIPS ppc6700, I had done this exact thing, with an eBay battery. I noticed NO difference between the two batteries, and I even ran synthetic tests to confirm. I believe I posted those results a LONG time ago on ppcfreaks.
I then bought the Saedo (sp?) 3700 ma/hr piece with the extended battery door and the dock, and that thing kicked ass. I would get like a week with an overclocked proc on fast evdo and a cooked ROM nue2chem I believe, its been a long time.
Then with my 6800 things got really bad. I went through maybe 6 phones from dead charging ports. I honestly felt like at least half of those failures (which were all replaced basically no questions asked, besides one) were due to gas-station car charges and laptop cords. Such a nightmare.
My guess is that most mini usb port failures from back then were due to the actual design standard being so loose that knock off, low cost manufacturers without precise and developed manufacturing techniques were marketing chargers that would arc my usb port to death over like a 1 hr drive. This is of course a guess. When Sprint questioned my one replacement I simply had the guy who had my phone taken apart bust out his magnifying glass and we could both clearly see burnt leads on the PCB. Couldn't see with the naked eye.
Also that older standard was thicker, and it thus exerted a little more tensional force on the port/PCB, which could have created the same effect.
Flash forward to my Evo: the new micro usb standard is FAR superior to the previous. No issues so far. Other chargers seem to work fine, without issue. You bet I was suspicious though, and I did all my checking within the return period. They DON'T have more Evos, so if you think that 8 dollars saved on a charger or something is worth it, Kool. Just as long as everyone knows the risks that have historically been associated with cheap chargers. At least anecdotally.
I would possibly consider some extended evo batter package if it was cool looking. Clear backed and extended maybe? With a small led batter level indicator on the battery itself, shining through the back with a small integrated button press.
Sent from my PC36100 using XDA Ape

cruecu said:
Where did you get this info? The external chinese chargers are a slower, less powerful charge. I get more juice out of the battery than charging it in the phone, due to the quick 10% drop. Everything I have ever read says that slower charging is better for the battery in the long run. Please link where you got this from.
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Click to collapse
same id have to agree with this !

to clarify, the chargers i use are external not a phone charger, i wouldnt use a cheap charger on any of my phones

sitlet said:
Are you charging the stock red battery with the Chinese charger? You shouldnt do that. But as far as the chinese batteries, it doesn matter how you charge them.
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Click to collapse
Yes, i never charge from the phone anymore. I just use the phone till it dies and then swap with a fresh ly charged battery. I charge both of them in the cheap charger.
I was thinking that maybe the phone battery recalibration got whacked? Just a guess.

Any battery charges better with a lower amp charge period. I charge my deep cell boat batteries at the beginning of the season on 2 amp trickle charge. I have had them for 10 years now. Way over the life expectancy. I charge my evo batteries on a 400 milli amp wall charger. Way better charge and they charge 100% everytime.
Sent from my PC36100 using XDA App

Okay, I'm convinced. I'm slow charging mine in an external charger.

treckin said:
On my PHILLIPS ppc6700, I had done this exact thing, with an eBay battery. I noticed NO difference between the two batteries, and I even ran synthetic tests to confirm. I believe I posted those results a LONG time ago on ppcfreaks.
I then bought the Saedo (sp?) 3700 ma/hr piece with the extended battery door and the dock, and that thing kicked ass. I would get like a week with an overclocked proc on fast evdo and a cooked ROM nue2chem I believe, its been a long time.
Then with my 6800 things got really bad. I went through maybe 6 phones from dead charging ports. I honestly felt like at least half of those failures (which were all replaced basically no questions asked, besides one) were due to gas-station car charges and laptop cords. Such a nightmare.
My guess is that most mini usb port failures from back then were due to the actual design standard being so loose that knock off, low cost manufacturers without precise and developed manufacturing techniques were marketing chargers that would arc my usb port to death over like a 1 hr drive. This is of course a guess. When Sprint questioned my one replacement I simply had the guy who had my phone taken apart bust out his magnifying glass and we could both clearly see burnt leads on the PCB. Couldn't see with the naked eye.
Also that older standard was thicker, and it thus exerted a little more tensional force on the port/PCB, which could have created the same effect.
Flash forward to my Evo: the new micro usb standard is FAR superior to the previous. No issues so far. Other chargers seem to work fine, without issue. You bet I was suspicious though, and I did all my checking within the return period. They DON'T have more Evos, so if you think that 8 dollars saved on a charger or something is worth it, Kool. Just as long as everyone knows the risks that have historically been associated with cheap chargers. At least anecdotally.
I would possibly consider some extended evo batter package if it was cool looking. Clear backed and extended maybe? With a small led batter level indicator on the battery itself, shining through the back with a small integrated button press.
Sent from my PC36100 using XDA Ape
Click to expand...
Click to collapse
Not to go off topic but you typed all this on your evo? Does your finger hurt?
Sent from my PC36100 using XDA App

Faulty chargers causing battery problems?

I'm wondering what the easiest way would be to test the charging voltage going to your phone from the charger. My experience has been that the first time I charged my phone it seemed to charge up just fine pretty quickly, but then drained pretty quickly also. The second time I plugged it in for about an hour or so and it had only charged up 10 or so percent and the phone was pretty hot. I was thinking maybe it was the outlet or something, but when I plugged it in to another one the charger started making this buzzing noise, and continued to buzz for about 6 or 7 seconds after being unplugged. This concerned me, so I switched chargers to a different one and it charged up my phone no problem and I have pretty good battery life.
I'm not sure how widespread this is, but I've had a few other people say they have the same issue as me with the buzzing and everything. One guy's phone phone got bricked completely before I mentioned to him that my charger was buzzing and he found his was also buzzing. This is just something to be aware of if you're experiencing heat issues or charging issues. Is there maybe an app that displays charging voltage?
Sent from my Nexus 4 using xda premium

jtroye32 said:
I'm wondering what the easiest way would be to test the charging voltage going to your phone from the charger. My experience has been that the first time I charged my phone it seemed to charge up just fine pretty quickly, but then drained pretty quickly also. The second time I plugged it in for about an hour or so and it had only charged up 10 or so percent and the phone was pretty hot. I was thinking maybe it was the outlet or something, but when I plugged it in to another one the charger started making this buzzing noise, and continued to buzz for about 6 or 7 seconds after being unplugged. This concerned me, so I switched chargers to a different one and it charged up my phone no problem and I have pretty good battery life.
I'm not sure how widespread this is, but I've had a few other people say they have the same issue as me with the buzzing and everything. One guy's phone phone got bricked completely before I mentioned to him that my charger was buzzing and he found his was also buzzing. This is just something to be aware of if you're experiencing heat issues or charging issues. Is there maybe an app that displays charging voltage?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Hmm... My charger also buzzes when unplugged and plugged in. I noticed it before but didn't pay attention to it. I guess I'll use a different charger. I hope this hasn't killed my battery in any way.

did anyone request a replacement charger from Google or is everyone just accepting it for what it is?

My GNex came with a buzzy charger, I used it for two days before swapping for a new one and had no problems with it.
Is the LG charger broke? Maybe. Is the LG battery super sensitive? Possibly.
I use about 3 different charging blocks and cables on with my HTC onex and My Nexus 4, It doesn't matter at all which I use with either phone, the n4 still has crazy heat.
One thing either way, Never use a noisy charging block IMO.

My charger buzzes as well, and my battery life seems to be on the poorer side. I kind of doubt the are related, but perhaps they are. Would they send a new charger with a replacement unit?
Sent from my Nexus 4 using xda app-developers app

My charger also buzzes occasionally and will continue to do so for ~10 seconds after being unplugged. Should I be concerned?

Banished Angel said:
My charger also buzzes occasionally and will continue to do so for ~10 seconds after being unplugged. Should I be concerned?
Click to expand...
Click to collapse
I'm in the same boat. What's the deal with the charger?

My charger also buzzes. I don't think it's defective though... Seems like everyone's does, plus it seems to be working fine. I just assumed it was some kind of capacitor discharging inside or something.
Just played around with it and it seems like the block buzzes when plugged in until you plug the phone in and it stops. Mine proceeds to buzz for a few seconds after unplugging as well, as others have mentioned.

Anyone tried wireless charging ?

Anyone tried wireless charging on DT2 or MXF ? And how was the experience ?

Works, nothing special - overnight charge from 1% to 100%

It works, but many of us have problems with the Qi charger disconnecting charge at 100% and then reconnecting after about 5% has drained. Motorola is looking into it. I may be picky on which Qi charger you use.

Maybe I did not notice this problem - as I put the phone on charge in the evening, until the next morning I take it to work.
I use cheap qi charger from ebay - ~$2.5

Use a ravpower qi charger every night, no issues, phone comes off 100% full, cool to the touch. I know some units I've tried with my Maxx back in the day kept it warm through charging.

007shark said:
It works, but many of us have problems with the Qi charger disconnecting charge at 100% and then reconnecting after about 5% has drained. Motorola is looking into it. I may be picky on which Qi charger you use.
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Click to collapse
Hm, I haven't had this issue yet. I use a cheap generic three coil Qi charger. Is the issue just Qi or PMA chargers too? Because I was looking at buying another but this issue would be a little annoying to me.

007shark said:
It works, but many of us have problems with the Qi charger disconnecting charge at 100% and then reconnecting after about 5% has drained. Motorola is looking into it. I may be picky on which Qi charger you use.
Click to expand...
Click to collapse
Exactly how it should work to prolong battery life. Keeping any battery (especially lithium) full charger for long period of time will significantly decrease its capacity.

My phone gets very warm wireless charging. I prefer fast charge
Sent from my XT1585 using XDA Premium 4 mobile app

Zeljko1234 said:
Exactly how it should work to prolong battery life. Keeping any battery (especially lithium) full charger for long period of time will significantly decrease its capacity.
Click to expand...
Click to collapse
Never had a problem with that in the past even with wired chargers. I don't think in recent phones that there is actual current on the battery at all times past 100% whether charging wirelessly or wired. I'm pretty sure it goes into a maintenance mode, but it will still show charging on the display which is the important part. That is important if you use it on your nightstand as an alarm clock with wireless charging. My Sony Z3v had no problems staying in a charge state even after 100% but my Turbo 2 does not which causes it to disconnect. It will reconnect after it loses about 5%. If I don't have it silenced, it will wake me up when it reconnects. It also affects any tasks you have programmed to happen when it is charging.
From my understanding, the first Turbo did not have this problem. I think it cropped up from the inclusion of the powermat charging or maybe something related to the 810 processor. Anyway, just waiting for a definitive answer from Moto.
---------- Post added at 05:54 PM ---------- Previous post was at 05:48 PM ----------
Xelios029 said:
Hm, I haven't had this issue yet. I use a cheap generic three coil Qi charger. Is the issue just Qi or PMA chargers too? Because I was looking at buying another but this issue would be a little annoying to me.
Click to expand...
Click to collapse
Read the thread at the Moto Support Forums. https://forums.motorola.com/posts/215aa2bb51
It doesn't seem to affect everyone which may mean it is more dependent on your charger.

damkol said:
Maybe I did not notice this problem - as I put the phone on charge in the evening, until the next morning I take it to work.
I use cheap qi charger from ebay - ~$2.5
Click to expand...
Click to collapse
ahahahahhaha.....it's really cheap !!!:laugh::laugh::laugh:

RGDROID said:
Use a ravpower qi charger every night, no issues, phone comes off 100% full, cool to the touch. I know some units I've tried with my Maxx back in the day kept it warm through charging.
Click to expand...
Click to collapse
Have any Qi charger brand to propose ?

I'm using a Samsung Qi puck - not the newer round plastic one, but the older more squared soft-touch one. Works great, I don't have the 100% disconnect issue.

I use the tylt qi charger the desk top one so my phone is sitting at a 60 degree angle. It works great no issues and every morning my phone is at 100% and cool to the touch

This all sounds encouraging. I think it would be helpful if people could also add a few common notes:
charger / model
any case they have on the phone (or not) when using a Qi charger
whether the phone must be in a certain orientation (e.g., horizontal vs vertical) to charge
whether the phone is at 100% - and stays there after a charge
whether the phone is cool / warm / hot once charged
A cleaned up list developed from this would be a good resource for the user community

Tylt works great phone gets warm. Itian charger is cheap from Amazon but is very finicky.
Sent from my XT1585 using XDA Premium 4 mobile app

Really, Zeljko?
Zeljko1234 said:
Exactly how it should work to prolong battery life. Keeping any battery (especially lithium) full charger for long period of time will significantly decrease its capacity.
Click to expand...
Click to collapse
Uhm, that's one of the sillier things I've read today.
If it drains to 5% it's not terribly useful as a charge system regardless.
A charge controller chip is supposed to be designed to PREVENT the problem you just described.
Each charge cycle, regardless of it's form shortens the life of the battery, period. If you charge it up and then let it deplete it like that, you're damaging it as much as if you left it charging.
You kind of need to leave the stupid thing plugged in or in some wireless charge hysteresis loop so that the device isn't drained. In light of the charge system being supposed to keep the battery out of the loop until it needs to charge it again (some threshold below 100%) it shouldn't MATTER if it's "plugged in" and the device won't be pulling from the battery.

madscientist_42 said:
Uhm, that's one of the sillier things I've read today.
If it drains to 5% it's not terribly useful as a charge system regardless.
A charge controller chip is supposed to be designed to PREVENT the problem you just described.
Each charge cycle, regardless of it's form shortens the life of the battery, period. If you charge it up and then let it deplete it like that, you're damaging it as much as if you left it charging.
You kind of need to leave the stupid thing plugged in or in some wireless charge hysteresis loop so that the device isn't drained. In light of the charge system being supposed to keep the battery out of the loop until it needs to charge it again (some threshold below 100%) it shouldn't MATTER if it's "plugged in" and the device won't be pulling from the battery.
Click to expand...
Click to collapse
You're talking like battery expert. Well, maybe you're. Then contact those guys and tell them they're wrong
http://batteryuniversity.com/learn/article/lithium_based_batteries

I picked up 3 Samsung qi chargers at 6 quid each on offer on Amazon (UK). They work very well although they are more a convenience thing rather than a method of charging. I use one at work. One in the bedroom and one next to the Xbox great for the work desk to keep the device topped up and frees you up from plugging and unplugging constantly BUT.... It takes absolutely ages to charge so you dont go expecting to be dumping your cabled chargers. I use the work one most of the time as I'm out and about a lot and its very useful to be able to just grab the phone without unplugging and placing back on the pad when at the desk. The turbo charger gets used at home more coz in more likely to plug in to that and jump in the shower knowing that I'll have a nice reserve of power for the pub so yes they work as advertised and work well great as a trickle charge device when you ain't in a rush. If anyone is interested ping me and I'll spend some time on giving more detailed stats such as charge times from 0% and model number of the devices I use. Away for work at the mo so probably the weekend
Sent from my XT1580 using Tapatalk

Raynic
I bought the Raynic Orchard I. It charges the phone just fine, but I noticed that if the phone wants to wake up because it senses movement, it detaches and reattaches to the charter, which gets very annoying. I moved the phone to an angle where it couldn't see me (but I could see it; sensors were under my monitor stand but the rest of the phone was sticking out) and everything went smoothly after that.

Verizon QI charge stand, Verizon case, have to charge upside down
To charge our new Turbo Droid 2 in a Verizon QI stand with the Verizon case on it, the phone must be upside down. It's OK if out of the case. We have a car QI 'base' which it won't charge in either; probably exact same issue, whatever that is. Any ideas appreciated!
jdmba said:
I bought the Raynic Orchard I. It charges the phone just fine, but I noticed that if the phone wants to wake up because it senses movement, it detaches and reattaches to the charter, which gets very annoying. I moved the phone to an angle where it couldn't see me (but I could see it; sensors were under my monitor stand but the rest of the phone was sticking out) and everything went smoothly after that.
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Is wireless charging good for your battery?

The thing causes my S8 to heat up, even when I turn off the fast option, more so than fast wired charging. Is it really good for my battery health when the phone is heating up for the entire two or three hours on the charger?

with the official samsung one that has a fan?

The phone will stop charging automatically if it thinks the temperature is not comfortable.
Do not stress over things that are mentioned in the manual, inductive charging will generate more heat than a wire, but the phone is more than capable of managing the process and stopping if things get too hot.
And no, the temperature isn't going to get high enough to damage your battery. (Unless you are using unauthorized wireless chargers / fakes that can cause the actual metal casing to heat up, google this).

I too had this question back when I bought my Wireless Charger for my S7. Interesting to get more feedback from the others. E.g. Does it shorten the battery life quicker considering it heats up the battery more than on cable.

I've wireless charged my s7 since I got it and also wireless charge my s8. I've also added wireless charging to an LG G3 and G4. IMO it does not degrade the battery and fast. The way I look at it, it saves the charging port from 100's maybe 1000's of plugs/unplugs. It's also a point of device failure, so from that perspective, it's better. Again, IMHO.

notice it too.

How about if you introduce the extra variable of putting the thin metal thingies for magnetic car mounts between the phone and the case? Does that change the situation?

Another variable is a case, which can add to heat build-up. Overall, I have seen nothing definitive that suggests that heat won't adversely effect battery life. Notwithstanding the money companies make selling QI chargers.
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Guitarboarder28 said:
with the official samsung one that has a fan?
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Well the fan is for the charger itself isnt it?
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AB__CD said:
Well the fan is for the charger itself isnt it?
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I believe its to cool the phone

The fan in the authentic Samsung Desktop charger only activates if fast wireless charging is turned on in the phone.
The fan is to cool the phone.
I use the Samsung desktop stand but usually just normal charge it to which apart from typical heat being discharged I've not experienced any other issue.
I do not use a case.
There is opinion that constantly using Fast Charging can reduce the batteries condition over time. Wether you believe this is personal opinion. I've only Fast charged maybe 2-3 times if I've needed a quick boost of juice.

I noticed this too when I put my new S8+ on the wireless charger built into my truck. This was the first time I tried it so I wasn't sure if the phone getting hot was a normal thing or not

Dark5tar said:
I too had this question back when I bought my Wireless Charger for my S7. Interesting to get more feedback from the others. E.g. Does it shorten the battery life quicker considering it heats up the battery more than on cable.
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Hi, the phone can handle it if it gets too hot during wireless charging.
Always be assured since that the electric current of wireless charging is 1A, which is lower than the current for wired charging 1.6A. That's to say, it creates less heat while charging. So actually the wireless charging helps prolong the longevity of your lithium-ion battery, except for the longer charging time.
Besides, only semiconductors that flow through current could produce heat (such as your phone's cover), the lithium-ion battery doesn't have current go through, so it's safe from the heat.

I only wireless charge in my car. My dash mount is setup for during the warmer months I will have the the AC it vent blowing cool air directly on the back of the phone. If I don't do this, I get the wireless charging pause error caused by the heat sensors.

AB__CD said:
The thing causes my S8 to heat up, even when I turn off the fast option, more so than fast wired charging. Is it really good for my battery health when the phone is heating up for the entire two or three hours on the charger?
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Fear not, the phone battery doesn't generate heat itself, the smartphone is actually smart enough to protect itself from the heating generated by the wireless charging unless you put it under the extreme heating weather, so the phone should be safe from the heat.