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Hi guys
I'm an iphone 3gs owner at the mo but my contract is up in a week and after doing A LOT of research over the past 3 weeks, i was pretty much decided that the GS2 was gonna be my next phone.
Then i foolishly visited the xda forums! lol (in fairness, it probably still will be my next phone).
But seriously though, setting aside the various issues some people are clearly having (reboots, battery drain, etc) what shocked me the most was hearing about the low-powered charging mechanism (apologies if i've gotten this slightly wrong).
I've heard that it only charges at ~650mah, but that the phone can easily surpass this under load (~850mah?), meaning that you could be charging the phone at the same time as using it, only to find the battery going DOWN. Can someone confirm if this is true? If it is, then i'm gobsmacked that Samsung could make such a c0ck-up. Imagine if you're using the GPS (a real battery hog) while driving (and plugged-in to the ciggy lighter) only to find that the battery dies before you get to your destination! lol. I've heard about the heat this puppy produces, i wonder did they limit the juice to stop it from burning a hole through the floor
Even though i'm bored to t1ts with my iphone (and i hate apple), what i love about it is that when i don't actually use the phone for extended periods of the day (which is quite often, due to work) it still retains it's charge really well (i get insanely good battery life). I would be really annoyed if i found the GS2 battery dropping any more than, say, 30% over the course of a busy working day (say 9am to 7pm) with virtually no use.
So, to finally get to my point! My iphone charges REALLY fast. I'm worried that it will take a stupidly long time to fully charge the GS2. Can some kind person please do an experiment for me, and see how long it takes theirs to fully charge (from fully dead to 100%) with the screen off and the phone not doing anything major in the background?
Also, it would be good to know how this compares to the GS2's competitors.
Sorry for the long post guys!
my phone is at 33% at 8:08
Will let you know how I get on. I have it on charge now
I think mine takes around 3 hours from empty using samsungs supplied charger but I will try to do a test for a more accurate time. How does this compare to the iphone?
Yep mine takes about 3 hours as well from empty to about 90% using the wall charger, then it goes on trickle charge the rest of the way. This is on standby as well.
Yepp takpes about 3 hours to get fully charged. however, i've been using the phone as a wifi hotspot all the time and yes, it increases charging time but it doesn't really matter when it takes so long anyways
winwiz said:
my phone is at 33% at 8:08
Will let you know how I get on. I have it on charge now
Click to expand...
Click to collapse
65% at 9am
It takes almost 3.5-4 hours to charge it with stock charger from empty to full.
It takes a bit more than 5 hours to charge from empty full using USB charging in my laptop.
Found out the hard way:
Charging with original EU charger AND heavy use (downloading, Wifi tethering, map ops etc.) MADE it drain faster than charging.
Two nights before left it during night with orig. charger and made it in 8 hrs only to 84% while on.
With Hama 0,8 amps charger full in 2hrs from empty and stays full even with heavy work.
NO heat issue though !
Methinks the charger is crap
Sent from my GT-I9100 using XDA App
doesn't really matter which charger. got the nokia 1,2A charger and it takes nearly 3 hours as well to fully charge the battery.
I use my ipad charger with it and its definitely more like 2 hours not 3
My car usb adapter is 1amp and has no problem keeping it fully charged while using sygic satnav
Sent from my GT-I9100 using XDA Premium App
troed said:
Found out the hard way:
Charging with original EU charger AND heavy use (downloading, Wifi tethering, map ops etc.) MADE it drain faster than charging.
Two nights before left it during night with orig. charger and made it in 8 hrs only to 84% while on.
With Hama 0,8 amps charger full in 2hrs from empty and stays full even with heavy work.
NO heat issue though !
Methinks the charger is crap
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Is this an ebay job to get one of these?
Any idea what the max amps the phone can take? I've been looking around, seen chargers up to 2 amps, but don't want to ruin the phone...
Edit: Sorry, posted too soon. Just saw this thread, and the battery has is rated at 1000mA, so ya, don't use a 2 amp charger
Murfle said:
Any idea what the max amps the phone can take? I've been looking around, seen chargers up to 2 amps, but don't want to ruin the phone...
Edit: Sorry, posted too soon. Just saw this thread, and the battery has is rated at 1000mA, so ya, don't use a 2 amp charger
Click to expand...
Click to collapse
if you look thru the battery driver source code, samsung capped the charging at 650 mA it seems. not sure why, other android phones use the full 1 amp.
so samsung either saw a heat problem and lowered it, or that's just the way they do their phones charging. who knows.
RogerPodacter said:
if you look thru the battery driver source code, samsung capped the charging at 650 mA it seems. not sure why, other android phones use the full 1 amp.
so samsung either saw a heat problem and lowered it, or that's just the way they do their phones charging. who knows.
Click to expand...
Click to collapse
Wow, ok. As someone who uses 3G a lot when our internet connection goes down (all too often), I hope the charge will end up keeping up with the battery drain. Otherwise I'll be tempted to change that source and probably end up frying my phone (if it ever gets in stock :|)
Thanks for the info
Does anyone have any ideas on how to increase car charger performance?
When I am using Google Maps Navigation with the GPS running and full 3G signal, the phone barely charges at all. Depending on screen brightness it can actually drain the battery(slower than when not connected to a charger).
Can the charger be modified to increase its output?
You have to buy a charger, which has more than 1 ampere
I have the Brodit Active Holder w/ Cig charger, I'll have to check the specs on it later. Do you think it could be modified in some way?
I bought the SE car charger (http://bit.ly/k7udKw), the price was a bit steep (20 euros or so) but it works like a charm. I use Sygic Aura navigation and the battery meter still increases over time. Not fast, but it doesn't stay put or decrease either, so I'm all in all happy with it.
Check out this thread...
http://forum.xda-developers.com/showthread.php?t=1005618
And make sure you set your phone dock near the air conditional if you open GPS map, it'll get hot and your battery won't last long while it gets hotter even you charge it.
I bought my charger on Internet auction for about 2 Euros (some crappy China stuff) It works like a charm. And yes, battery gets very hot when I use navigation so I mount my phone holder near AC vents.
There must be a reason for the severe heat in the x10.
even in ultra low temperatures it overheats a lot.
So i finally remembered to check my car charger and it is a 1amp charger. I've just upgraded my rom to the one listed in my sig and the phone is much better on battery, so hopefully it charges better in the car now.
Had my phone docked in the car for 20minutes and it charged from 82% to 95% with the GPS on and Google Maps following my route. Pretty happy with that sort of performance.
Mines charge normally i use orginal se charger because in my car i got an ac plug
Sent From My X10!
im using this one
http://www.amazon.com/AT-BlackBerry..._1_1?s=wireless&ie=UTF8&qid=1310226373&sr=1-1
it charge fast and it can charge another USB device like an iphone or my MW600 bluetooth... it can even charge my x10 to 100% while GPS navigation is on. my previous car charge doesnt do that, it can only hold my battery % without letting it drop if GPS navigation is on. so if my battery is 30% i'll get 30% after i disconnect and stop using the GPS navigation...
http://cgi.ebay.com/Holder-Mount-Ca...878745?pt=PDA_Accessories&hash=item4cf818a359
I've bought this one a while ago for 7 bucks (including shipping). Had just a few chances to use it, but all times it was really sunny and hot outside and the phone just stops charging because it becomes extremely hot. I would stick the mount somewhere near the gear stick, but it won't stay on any other surface than glass
It was a quite funny adventure when we were travelling to a big city with intense traffic and really complicated streets. So I am using the GPS to find the hotel we booked, it's really hot, I just keep going - didn't know that the phone stops charging when it's hot - so we finally arrive at our destination, I start to reach the phone with my hand and it just turns off, because the battery is dead. Was quite scary at the moment
Yeah, did some driving around this weekend using Google Maps Navigation. Had my X10 plugged into the charger that came with my Jabra Cruiser speakerphone. Despite the charging light being on the whole time, by the time I arrived at my destination my phone had >5% battery. I checked the charger, and it's only 500mA.
Ordered this charger from Monoprice.com (was ordering some cables anyway). The price was good, and specs say it outputs 1A. Will let you know how it works out when I get it.
Hi,
I'm having an annoying issue with my car charger. I'm actually using the SE car charger, the 1200mA one.
The problem is that sometime, the charger will charge very well, meaning I can listen to music, have the navigation active, and twitter, G+ updating as usual, the battery is charging around 1% per minute, but on other time, the battery will slowly drain, same setup.
I've noticed something yesterday btw, the phone was in a battery draining phase, then it appears that the phone lost his network connection, then it came back, and the phone started to charge well.
Is that an issue related to the car charger or could it be a "bug" in the phone software ?
wlx said:
Hi,
I'm having an annoying issue with my car charger. I'm actually using the SE car charger, the 1200mA one.
The problem is that sometime, the charger will charge very well, meaning I can listen to music, have the navigation active, and twitter, G+ updating as usual, the battery is charging around 1% per minute, but on other time, the battery will slowly drain, same setup.
I've noticed something yesterday btw, the phone was in a battery draining phase, then it appears that the phone lost his network connection, then it came back, and the phone started to charge well.
Is that an issue related to the car charger or could it be a "bug" in the phone software ?
Click to expand...
Click to collapse
The phone limits the charging current at a max of about 700mA.
Sometimes the radio eats thru the battery quite heavily in low signal area's.
The charging current just plainly cannot keep up with the total usage.
OmegaRED^ said:
The phone limits the charging current at a max of about 700mA.
Sometimes the radio eats thru the battery quite heavily in low signal area's.
The charging current just plainly cannot keep up with the total usage.
Click to expand...
Click to collapse
Thanks for your fast answer.
Maybe updating the baseband (actually i'm using the 2.0.46) could help ?
wlx said:
Thanks for your fast answer.
Maybe updating the baseband (actually i'm using the 2.0.46) could help ?
Click to expand...
Click to collapse
You can try that.
In some cases it works in other cases it does not.
I have had my X10 for nearly 2 years now and i have tried about 5 different car chargers until finally settling on a SE original.
I use my x10 with google nav all day long as i am a service engineer and i have found the only way to get it to work for a full day is to mount it directly infront of one of the air vents blowing cold air over it while plugged in to the charger. Without this the phone will get too hot and start discharging especially on a warm day.
Using 2g and low brightness can help as well.
Mighty Reds said:
I have had my X10 for nearly 2 years now and i have tried about 5 different car chargers until finally settling on a SE original.
Click to expand...
Click to collapse
LOL. The X10 was released in late March 2010. So unless you had an early development model, you've had your X10 for 16 months at most.
Mighty Reds said:
I use my x10 with google nav all day long as i am a service engineer and i have found the only way to get it to work for a full day is to mount it directly infront of one of the air vents blowing cold air over it while plugged in to the charger. Without this the phone will get too hot and start discharging especially on a warm day.
Using 2g and low brightness can help as well.
Click to expand...
Click to collapse
Yeah, I learned how crazy heat will build up in this phone if using it for nav a few weeks back, when in about 75 minutes of driving I drained my battery fully and the phone was registering at 54°C from sitting on my sun-beaten dash while navigating.
I thinking I'm going to try to build some sort of shade over my car holder to keep the X10 out of the sun, and maybe help channel some of the AC more directly onto it.
I've had my new HTC Amaze 4G for 4 days now and absolutely love it, what a great phone! The battery life is great (I'm careful with all my settings) and I'm only finding issues with the charging TIME.
It's the second time I've charged it and after noticing how excessively long it took the first time, I clocked it this time and it took 4 hours and 45 minutes. I used a charger that I've used on many other devices with no issues (5 volts 1 amp).
The battery level increases 1% every 3 minutes, which adds up to 5 hours. I calculated this both with the screen on and by averaging out over a longer period of time with the screen off. I also tried with the phone completely off and the results were the same.
I made sure there were no processes hogging up processor time or excessive RAM usage.
When I go into to "Settings -> About Phone -> Battery" Battery status clearly states: Charging (AC).
I have also read somewhere that this can possibly be set this way by design (possibly to prevent the battery from heating or overcharging and saving its life in the long run).
I also realize that the phone is new, and the battery needs a few charges to be settled, but 5 hours to charge on the second charge just seems like too much.
On the HTC product support website, on the faq there is the following question/answer:
How long should it take to charge my battery?
"Your battery can take up to 4 hours to fully charge using the AC charger. It will take much longer using the USB as that is the trickle charge function."
Can anyone out there with an HTC Amaze 4G confirm how long their phone takes to fully charge from the AC charger?
I'm thinking/hoping this is a defective device/battery/setting...I don't like having to wait 5 hours to have my phone fully charged.
Thanks in advance,
Filipe
Ok, I'd like to add one more thing. I finished charging the phone last night (about midnight), by the time I went to bed (around 2 am), after barely having used it, it was still at 100%, now at 9:30 am (7.5 hours later) the battery level is at 95%. I had everything off and very little background services and apps running. Even the network type, is only set to the basic, no data connection was live/standby.When I check the battery status/histogram this is what I get:
-44% went to Cell Standby
-42% to Phone Idle
-8% Display
-6% Wifi (I think I used it before I went to bed, but turned it off right then, and it remained at 100% battery)
I'm not too happy...this can't be right...it shouldn't take 5 hours to charge and discharge this fast? Can anyone shed some light please?
Thanks
Come on....anyone? Please? This is driving me nuts!!
Yeah that sounds about right. Don't complain man. Your battery life is pretty good compared to other devices. My device takes 3 hours to fully charge and can last 24 hours with minor use. Just charge it when you go to bed and you won't notice the time it takes
My desire hd takes almost as much (Around 3 hours) and my Optimus 3d prolly takes even more (5?) to fully charge from a full discharge...
(With Stock HTC/LG Charger. The HTC's AC Adapter is 5V/1A [Shouldn't that charge a battery in under 1 1/2 hrs?]. Not too sure about the LG)
They take Much longer to charge on Computer/Laptop USB Ports. The Optimus 3d actually loses battery while charging (With screen on) with a USB port.
Also, 5% a night is pretty good. My desire hd goes down 3-5% per night (2g, no data enabled.) or 0-1% with Airplane Mode. (Rooted, Revolution 6.31)
And my optimus 3d pretty much runs out of battery in <100 mins with full brightness while Playing Games - It goes down more than 1% per minute depending on the game being played, especially if 3d Converter is used. This is pretty much the same for all GB/Froyo ROMs.
Just charge it when you go to bed and you won't notice the time it takes
Click to expand...
Click to collapse
I Agree. Both phones usually last around a day at least for me. You could always try a battery monitor such as GB Battery Stats or watchdog (The CPU One). CPU Intensive applications and Awake time during sleep are usually what cause bad battery life. Faster chargers such as 2A ones should also charge the battery faster, but they might reduce the overall battery life.
I would suggest buying a wall charger and cheap batteries from ebay. They last almost as long as stock batteries and cost only ~$2-4 each. [They apparently explode though. Never happened to me.]
-------------------------------
Both phones seem to charge from 0-90% much faster than 91-100% as well. I'm not sure why, since 100-90 wastes just as fast as 90-0. (Charging from 90%-100% battery practically takes a third of the full charging time)
many thanks
RESOLVED (Sort of...lol)
Thanks for your feedback guys!
I just finished charging it this morning, and it's FASTER NOW!
Took exactly 2 hours and 37 minutes (Battery Moniter is a great app!).
I think it actually may be due to the phone having some sort of smart charging system which "looks after" the battery. Since the phone is new, it might be wanting to start it off with some slowww charges and gradually speed them up.
But I still have to narrow it down some more since this time I'm actually using the supplied cable and charger (the ones I tried before were also 5V/1A).
The cable I was using (had it for a while now) had a pinch or two, it didn't look that bad, but I'm thinking it could also be the cable (could be shorting)!
I'm gonna do some testing on this cable now and report back my findings!
Thanks again!
RESOLVED!!!
Ok, so it actually turned out to be the cable. I really feel like a dumb ass...lol. Oh well, at least I figured it out!
So yeah, one good way to see if your cable / charger is good is to use Battery Monitor, and on the main screen where it says your device is charging (AC) and etc..it will also say the actual amperage (in mA) being fed to the battery...that number should be within the 500 to 750 range, if its lower, there is likely something wrong. (Mine was at 16...lol).
Thank you all for your help!!
Cheers!
can you explain to me more !!! i just had the phone and the battary run out like 5 hrs after ,,, what s about your cable-charger problem i didn t get your point !!! can you help me plz
mtarabichi said:
can you explain to me more !!! i just had the phone and the battary run out like 5 hrs after ,,, what s about your cable-charger problem i didn t get your point !!! can you help me plz
Click to expand...
Click to collapse
My problem was the cable, and it was causing the phone to take five hours to CHARGE, not discharge.
These phones don't hold charge for too long, and the more activity you got going on, the more power it will consume. The screen hogs up the most power, so using the device constantly (especially with high intensity background light) will drain the battery very quick. First smart move would be to set the screen intensity to the lowest setting. Wi-fi and bluetooth, if you're not using them, shut them off. Open your task manager (or get a decent one from the market) and kill all the apps you got running in the background.
Games also require a lot of graphics/processing power, so naturally they will drain a lot of battery too.
Edit: There are some special cases where it could also be related to your network or even simply coverage zones exposed to the device. If it's stuck in a zone where it has weak 4g and 3g signals, it will keep bouncing back and forth causing more drain than normal on the battery as well.
If you've taken all these things into account, then you may have a defective device, then you will want to setup an RMA...or just take it back wherever you bought it and ask to exchange.
Hope this helps,
Cheers
My skyrocket takes about 3.5 hours to charge from 10% to full charge. If I plugged it in the car charger and run google map with the radio on the background, it would slowly drain the battery even though it was plugged in. My iphone 4 did not do this. It charges very fast and does not drain the battery even when I had several apps running in the background. I think the skyrocket consumes more power whether it is plugged in or not.
silkshocker said:
My skyrocket takes about 3.5 hours to charge from 10% to full charge. If I plugged it in the car charger and run google map with the radio on the background, it would slowly drain the battery even though it was plugged in. My iphone 4 did not do this. It charges very fast and does not drain the battery even when I had several apps running in the background. I think the skyrocket consumes more power whether it is plugged in or not.
Click to expand...
Click to collapse
Hi, what you need is a charger with a higher amperage rating than 500mA (or 0.5A). Buy a charger that is rated for 5V/1Amp like this one and your problems should go away.
The phone is basically "burning" more energy than it is receiving from the USB charger, hence the discharge.
To know the amperage rating of your charger look on the label for numbers that look like "5V/500mA"...
Hope this helps,
Cheers
EDIT: The link I provided does include an iPhone cable, but I'm just referring to the charger itself, the cable would obviously have to be a micro-usb.
.
Thread moved. Would advise you to read forum rules and post in correct section.
orb3000 said:
Thread moved. Would advise you to read forum rules and post in correct section.
Click to expand...
Click to collapse
thread moved to...mexico?
Most illegal threads are trying to move from Mexico.
But, you need a charging source more powerful then the base 500ma, (or whatever that term of measurement is) computers are only supposed to supply 500ma to a USB port so AC adapters are typically better for charging. But feel free to follow the post above and check the rating on the charger.
Sent from my HTC_Amaze_4G using XDA App
i just got my amaze, and i have auto sync off and screen on dim and it still takes for everrrrrrr to charge.. ive used a few different chargers and cords but i just got the phone so maybe after a few charges it will speed up? not sure my mytouch 4g never took this long although it would get verrrry hot
rich2thad said:
i just got my amaze, and i have auto sync off and screen on dim and it still takes for everrrrrrr to charge.. ive used a few different chargers and cords but i just got the phone so maybe after a few charges it will speed up? not sure my mytouch 4g never took this long although it would get verrrry hot
Click to expand...
Click to collapse
Well the amaze does have a hefty battery, mine is charging a bit faster than when I first had it
Sent from my HTC_Amaze_4G using Tapatalk 2
rich2thad said:
i just got my amaze, and i have auto sync off and screen on dim and it still takes for everrrrrrr to charge.. ive used a few different chargers and cords but i just got the phone so maybe after a few charges it will speed up? not sure my mytouch 4g never took this long although it would get verrrry hot
Click to expand...
Click to collapse
Make sure to use the original charger and cable that was supplied to you by T-Mobile/HTC
I noticed the 12-pin cable is faster than the 5-pin.
venceslau86 said:
Ok, I'd like to add one more thing. I finished charging the phone last night (about midnight), by the time I went to bed (around 2 am), after barely having used it, it was still at 100%, now at 9:30 am (7.5 hours later) the battery level is at 95%. I had everything off and very little background services and apps running. Even the network type, is only set to the basic, no data connection was live/standby.When I check the battery status/histogram this is what I get:
-44% went to Cell Standby
-42% to Phone Idle
-8% Display
-6% Wifi (I think I used it before I went to bed, but turned it off right then, and it remained at 100% battery)
I'm not too happy...this can't be right...it shouldn't take 5 hours to charge and discharge this fast? Can anyone shed some light please?
Thanks
Click to expand...
Click to collapse
Sounds about right. If you want better battery life either root it or buy another battery.
To get really good battery life ?...you got the wrong phone man.
Sent from my HTC_Amaze_4G using XDA
unplugged my phone at 8 read xda forum for 5 mins got to work right now 943 already at 89 percent. Does this seem normal? I been checking better battery stats but don't really understand it. I feel like something is trying to sync. i have fetch off for email and Facebook. anyway to diagnose this on saurom rc4 clean boot.
Sent from my oversized communication device.
Are you overclocked? If you are, which governor are you using? I've posted in the OC kernel thread about an issue where the CPU is running at max frequency the entire time causing a huge battery drain.
I am right now but its showing me deep sleep and 192mhz on demond has a big percentage. Its not running max clocked i know that.
Sent from my oversized communication device.
This is my shots I'm at 78 percent now been on xda for maybe teen more mins. My brightness is one step above min level. Its like 1 percent every 3 mins when screen is on even if I'm idle.
Sent from my oversized communication device.
h3r3tic said:
This is my shots I'm at 78 percent now been on xda for maybe teen more mins. My brightness is one step above min level. Its like 1 percent every 3 mins when screen is on even if I'm idle.
Sent from my oversized communication device.
Click to expand...
Click to collapse
I think I know what the problem is: Your phone is trying to kill itself and save humanity from that terrible font
seems like a bit much but it could be normal.
Once your phone's charge reaches 100% it stops charging to prevent damage to the Lithium-ion battery. I am not sure however when it starts charging again.
Mine charge % dips even when I am using plugged in! Horrible consumption with screen on.
installed only few apps.
Sent from my SAMSUNG-SGH-I717 using XDA
mdamathew said:
Mine charge % dips even when I am using plugged in! Horrible consumption with screen on.
installed only few apps.
Click to expand...
Click to collapse
Are you using the Samsung OEM home charger? It shouldn't be dipping when using that one. Mine will charge AND increase while using it in the car with GPS running (huge battery drainer) and a driving DVR program (DailyRoads Voyager) and the screen on. All with a car charger and cheater plug that shorts Pin 2&3. That's the secret to getting rapid charge to work. The OEM home charger has those pins shorted internally. If you are trying to charge over USB on your computer then again you need that cheater plug and ensure the USB port can support more than 700 mA. If it's a USB 3.0 port then it should handle that current.
No problems for me on the stock or aftermarket chargers with the screen on.
I have the same problem with my brand new I717 GN. Battery level slowly drops when on charge, even if it's the OEM wall adapter. I've tried my Kindle USB cables as well with about the same results. I noticed the charge is a bit stronger from the wall source, but still can't keep up with even simple web browsing via WiFi. I've installed JuiceDefender as well, and it's helped reduce depletion a bit, but not really enough. This phone would never last me a full day of intermittent use without a power source.
I've read several of these threads and there doesn't really seem to be a solid solution to this other than some GN owners saying they have the problem and some don't...
Someone mentioned a crosswired 'Smart Adapter Compatible with Samsung Galaxy S' on Amazon (I'm too new and can't post the link)... I might try that but maybe I'll return for a new one if some people don't have this battery problem, unless it turns out to be a latest firmware problem..?
billzilla2000 said:
I have the same problem with my brand new I717 GN. Battery level slowly drops when on charge, even if it's the OEM wall adapter. I've tried my Kindle USB cables as well with about the same results. I noticed the charge is a bit stronger from the wall source, but still can't keep up with even simple web browsing via WiFi. I've installed JuiceDefender as well, and it's helped reduce depletion a bit, but not really enough. This phone would never last me a full day of intermittent use without a power source.
I've read several of these threads and there doesn't really seem to be a solid solution to this other than some GN owners saying they have the problem and some don't...
Someone mentioned a crosswired 'Smart Adapter Compatible with Samsung Galaxy S' on Amazon (I'm too new and can't post the link)... I might try that but maybe I'll return for a new one if some people don't have this battery problem, unless it turns out to be a latest firmware problem..?
Click to expand...
Click to collapse
he mentioned it and linked it 2 posts above you
ive thanked him, and guess about to buy
just that shipping cost more than the item itself, sheesh
I read an article in a journal recently about how smartphones charge their batteries. The article claimed that once the charge has reached 100%, it will stop providing current to the device until it reaches 90%, after which it will then trickle charge to maintain it at about 90%. All the while the battery meter will still show 100% (at least in the case of iPhones), but after you unplug the phone the first 10% will go rather quickly as it approaches the real charge level.
True for our notes? No idea. But with how Lithium batteries work, I wouldn't be surprised.
I haven't gotten my Note to discharge while plugged in with the OEM AC charger. In the car however, running Waze will suck the life out of it even while charging. (My car charger puts out about 150mA less than the OEM AC charger). Oddly enough, running Navigon on battery alone has less discharge than running Waze while plugged in...Which sucks, because while Waze has crappy directions, it has saved me many hours by routing around traffic. But at least the phone still charges while using Navigon and streaming some Pandora.
Today I took my DNA for a spin using google maps. And to power the beast I used a 2000mA momax charger. To my surprise halfway through the trip I noticed my battery level had halved. I remember seeing the charging icon on the battery so thought ok its charging it.
But when we arrived after a 45 mintue drive i lost over 50% battery It seemed it wasn't charging after all. The phone was extremely hot
Did it get too hot possibly while driving and stop the battery from charging as a thermal safe guard from overheating? I'm on the stock kernel. Anyone had this issues like this? And does anyone know the MA rating of the official DNA charger? I'm in New Zealand so i cant just pick up the official charger or anything like that.
If i cant use the GPS without the phone charging it will make it unuseable on long trips
Edit: Problem found, phones gets too hot on the dash and running GPS it will throttle and not allow the battery to charge. Thumbs down to HTC making a phone with GPS that can't be used for more than 20 minutes or your phone overheats.
Hendrickson said:
Today I took my DNA for a spin using google maps. And to power the beast I used a 2000mA momax charger. To my surprise halfway through the trip I noticed my battery level had halved. I remember seeing the charging icon on the battery so thought ok its charging it.
But when we arrived after a 45 mintue drive i lost over 50% battery It seemed it wasn't charging after all. The phone was extremely hot
Did it get too hot possibly while driving and stop the battery from charging as a thermal safe guard from overheating? I'm on the stock kernel. Anyone had this issues like this? And does anyone know the MA rating of the official DNA charger? I'm in New Zealand so i cant just pick up the official charger or anything like that.
If i cant use the GPS without the phone charging it will make it unuseable on long trips
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the rating on the HTC charger is 1000mah.. one thing i have noticed that some higher MAH chargers will actually cause the phone to charge in "USB" mode.. when you plug that charger in check the battery settings screen and at the top it should say charging AC or USB.. if it says USB then that is likely your problem since USB charging mode is much slower than AC charging mode.
Awesome tip. Never knew that, thanks!
Wow thanks very useful info indeed. I think i might be over doing it and making it overheat. I will try a 1000mAh charger in a few days and see if that solves the issues!
So the problem doesn't lie with the actual mA output of the charger, but with the way the charger is physically pinned out. On "fast" chargers, that is, chargers that can deliver more than 500mA of current, the center two data pins, D+ and D- are shorted. This short tells the phone that it's plugged into a dummy charger and allows it to draw more current (I believe the DNA can draw a max of 1 amp when in AC or fast charge mode). In a computer USB port, these two pins obviously aren't shorted as they are the data pins. Without the short being present, the phone assumes it is plugged into a computer where USB 2.0 specifications allow for a maximum of 500mA of current draw, so the phone software limits the charging rate to 500mA. The flaw in many aftermarket chargers, even the super high power ones, is they omit shorting the center two pins, resulting in the phone only allowing 500mA of current draw. This is a problem with both car chargers and some home chargers, especially the multi-port chargers designed for iPads and smartphones. Apple uses a different pinout for their high speed charging that isn't as simple as shorting the two data pins, so many Apple branded or "compatible" chargers don't put Android devices into fast charge mode.
For a car charger, my personal favorite is this Motorola one from Amazon. It provides up to 950mA of current, is genuine Motorola OEM so it's built well, and best of all is only $5 with free shipping if you have Amazon Prime. The only drawback is the LED is kinda bright and annoying, but I keep it in the outlet inside the center console so I never see it. http://www.amazon.com/Motorola-Vehicle-Adapter-micro-USB-Charger/dp/B000S5Q9CA/ref=sr_1_1?s=wireless&ie=UTF8&qid=1356666975&sr=1-1&keywords=spn5400
Yeah I use that charger too. Works well. I recently bought a dual USB output one that claims it puts out 1amp..but my phone shows USB mode. Is it only putting out 500 then?
Sent from my HTC Droid DNA using Tapatalk 2
Your phone is only drawing 500... I have a qmadix 2 amp micro usb with an extra usb port and it puts out plenty of power to charge 2 phones while using gps and listening to music.
Sent from my HTC6435LVW using xda premium
Thanks for the info, still not luck for me. I brought a brand name 1 amp charger and used it again. It charges well to begin with. But after about 10 minutes the notification LED in the phone will start to flash .... Then it seems my DNA is not charging at all. Status bar tells me in the beginning it was not on USB charge. After the 10 minutes no charging detected at all. Its as if the droid disables charging.
I will check the cable too again and see if that was the issue. It might be the charger and or cable. But the first charger charged my Note II without any issues and fast. It never lost battery %
And again my DNA was scorching hot. Which seems to me more of an a throttling thermal issue. Its reaches xx temp and charging is disabled. Does the flashing led mean something? It was a sunny day and its summer here in New Zealand so the droid just got too hot maybe? Being black on the car dash in the sun cant help it.
I love this phone, and have my note II up for sale but if i cant fix this issue it seems GPS and Nav is a no go for me. Which is not good. I travel a lot.
Update,
I did some further testing and the news is bad I used my standard HTC DNA charger, and tried to repeat the conditions. Got my phone hot and low and behold. On the charger it will stop charging once the phone gets too hot. It will flash a green light, then orange, and repeat.
in other words if you want to use this phone in summer on your dash as a GPS you might want to think about running the A/C on it at all times
Can other please test this? Maybe i just have a faulty CPU, but i think its a built in thermal safetly feature once the CPU gets too hot it will not allow you to charge it. So in other words if you want to use this phone in summer with sunlight on your dash as a Nav/GPS think again ;(
Hendrickson said:
Update,
I did some further testing and the news is bad I used my standard HTC DNA charger, and tried to repeat the conditions. Got my phone hot and low and behold. On the charger it will stop charging once the phone gets too hot. It will flash a green light, then orange, and repeat.
in other words if you want to use this phone in summer on your dash as a GPS you might want to think about running the A/C on it at all times
Can other please test this? Maybe i just have a faulty CPU, but i think its a built in thermal safetly feature once the CPU gets too hot it will not allow you to charge it. So in other words if you want to use this phone in summer with sunlight on your dash as a Nav/GPS think again ;(
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This sounds right to me. My last 2 devices had the exact same issue when heating up. I do believe that fast charging really heats up the battery, so once it hits a threshold, it stops drawing power in order to cool off. Don't want a battery exploding in your phone.
The GPS radio can sometimes draw a bit of power, though it is much less on newer phones.
I digress, I really do think that in most cases, heat is the issue.
Its a very sad state of affairs, I cant use this phone as satnav / GPS without loosing a lot of battery life. Seems its only good for winter GPS when used on the dash in the sun of summer it will just over heat and not charge. Very poor if you ask me.
Hendrickson said:
Its a very sad state of affairs, I cant use this phone as satnav / GPS without loosing a lot of battery life. Seems its only good for winter GPS when used on the dash in the sun of summer it will just over heat and not charge. Very poor if you ask me.
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Try testing your phone at 'room temperature' (75 F, 30C), if your phone overheats using the GPS in this case, then you should return the phone because it is not normal.
If it is overheating on a hot dash board, ALL of my phones have done that. You can try blasting the wind shield vents to counteract the heat.
The DNA is normally great, but either your expectations are a tad unrealistic or your phone needs to be swapped.
A solution would be to mount it in a way that isn't in direct sunlight, like using one of those vent-mounted adapters. Then if it got hot, you could put the air on and it would cool it down.
Another option would be to either turn the brightness down, or to completely turn off the display, unless of course you have no idea where you are, and need more than just the audible directions.
But really, it sounds to me like your specific phone is just prone to overheating, and needs to go back. I haven't had any temperature-related functional issues at all.
Sure, it's gotten warm. But it's never failed me as a result of being too hot.
Sent from my HTC DNA
Well its summer here and its not taking the suns heat and being black doesn't help. I will see if I can move its position or place it over the A/c vent of the windscreen.
Wait till summer in the U.S and you will see more threads like these i think. I only comment its poor because no other phone of mine has done this in the past. Maybe mine is faulty.
Used mine for over three hours (one-way) using GPS/Maps full blown with no trouble or heat at all. I was also texting, surfing, playing games and talking on the phone at various times and had to plug in after awhile using the usual car charger. I don't like to get below 50% if I don't have to. Anyway, no trouble on the way there and no trouble on the way back.
HTC has always had the best gps radios I've ever used. My wife's GS3 still can't get as good, fast, and pinpoint lock as my DNA (or my Rezound for that matter).
As always, YMMV.
No offense man, but who the hell leaves their phone in the sun and expects it not to overheat? haven't you ever left your phone in the car in the summer and come back to a red triangle or a high temperature sign?
The key to keeping your electronics alive is to keep them cool. Your phone is just like your computer...you try to keep the temperatures as low as possible at all times.
I have a generic cigarette lighter adapter I got off ebay. I used my the google gps on my phone to a store in CT for the wife and then a trip to Boston, well over 3 hours worth of continued GPS use. When I unplugged the phone when we parked in the garage I had a full battery and the phone didn't appear to be any warmer than playing a regular game.
Hendrickson said:
Well its summer here and its not taking the suns heat and being black doesn't help. I will see if I can move its position or place it over the A/c vent of the windscreen.
Wait till summer in the U.S and you will see more threads like these i think. I only comment its poor because no other phone of mine has done this in the past. Maybe mine is faulty.
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That's how every phone works. If you are using it in a hot environment and in direct sunlight it will try to cool itself down by stopping charging.
Sent from my HTC6435LVW using xda app-developers app
Hendrickson said:
Well its summer here and its not taking the suns heat and being black doesn't help. I will see if I can move its position or place it over the A/c vent of the windscreen.
Wait till summer in the U.S and you will see more threads like these i think. I only comment its poor because no other phone of mine has done this in the past. Maybe mine is faulty.
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Sorry bud, you cannot expect to leave your phone on the dash in direct sun, while using GPS AND charging and not have less than optimum results. You are KILLING the efficiency of your battery by allowing it to overheat continuously. Keep it cool man!
People will find anything to complain about...