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Battery overheating issue? Read

I'm posting this for informative purposes. This is not to ***** about anything or prove anyone wrong. These are simply my findings and my conclusion. I was a sales person for wireless carriers for 8 years and saw this stuff a lot and I would stress test phones before swapping because I hated giving people refurbished crap for them to come back and complain about the same overheat issue. This experience led me to think before doing a device swap.
my G2x battery got hot from day one. From my monitoring I noticed the following.
1. The phone itself was not really hot. Just general radiation from the immediate battery area and it cooled off quickly after battery removal while battery would stay hot for a good 15-20 minutes.
2. Battery temp would hit 106 degrees.
3. Battery life just plain sucked. Charging it 2 to 3 times a day on light use.
T-mobile replaced my battery and after one full day of on and off abuse running 6 quadrants in a row at Max overclock amongst other things and with a thick non breathable case in the back the temp never got over 99 degrees. Prior to swap just reading and posting on xda would spike temps and that was with no case.
So before you decide to do anything pay close attention to what exactly is getting hot. Is the actual device hot or is it just the battery. Is the device a tad warmer simply due to the battery being too hot? Get a battery monitor installed to see the temp. Check your settings such as overclocking undervoltage etc.
T-Mobile just wanted to swap everything but since my phone was not hot and I had a good screen and never a boot or reboot issue even before root and bloat installed etc so I didn't want to take a chance and get a **** device. They also told me it was OK that k needed to charge it 3 times a day. I said with triple the usage on my G2 I almost never needed to charge it at all mid day. While each device varies, one third the battery life on one third the usage is simply not right no matter how you look at it.
So I say pay attention to detail before returning your device especially if your device is a good one because it would suck to get a **** device in exchange for your good one just because of a battery.
EDIT. I do want to add that my battery has spiked to 103.8 degrees while basically doing CPU intensive stuff While charging the entire time. When not on the charger it did not spike as high. After a short time after charge hit 100% it dropped over 1.5 degrees pretty quickly.
G2x with faux AOSP

The fact that you wrote "a lot" instead of "alot" showed me your post was worth reading.
Sent from my SGH-T959 using XDA App

stefan.buddle said:
The fact that you wrote "a lot" instead of "alot" showed me your post was worth reading.
Sent from my SGH-T959 using XDA App
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What? Really? Lol thanks for the info! I've noticed my battery getting hella hot when using navigation and a car charger. I could barely even hold the thing...
Sent from my LG-P999 using XDA App

crx4xharder said:
What? Really? Lol thanks for the info! I've noticed my battery getting hella hot when using navigation and a car charger. I could barely even hold the thing...
Sent from my LG-P999 using XDA App
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OEM car charger or some wallywolrd special?
G2x with faux AOSP

stefan.buddle said:
The fact that you wrote "a lot" instead of "alot" showed me your post was worth reading.
Sent from my SGH-T959 using XDA App
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The fact that you wrote that leads me to believe you miss a lot of really important information because someone wrote "alot" as opposed to "a lot". Someone who writes "alot" isn't worth your time or energy?

Battery Calibration Debunked (By Actual Google Android Dev)

Dianne Hackborn - 6:42 PM - Public Today's myth debunking:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it for away.
Source:
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT

Finally.
Sent from my HTC Sensation 4G using XDA App

nice find. guess the perceived improvement in battery accuracy/life is all placebo

mrmako777 said:
nice find. guess the perceived improvement in battery accuracy/life is all placebo
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Yes, like so many other things...

mrmako777 said:
nice find. guess the perceived improvement in battery accuracy/life is all placebo
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Click to collapse
Is that what wipe battery stats does? I have never noticed any difference when I did that. To think of all the times I have run the battery down, cleared the stats, charged it, and cleared the stats again with no noticeable results.
Sometimes it seems like the battery life gets thrown off by flashing a new rom. It isn't necessarily getting worse battery life but the indicator will work funny like it will show 99% for 3 hours and I will think I am getting great battery life and then go to 30 in the next 20 minutes. It is like the UI gets confused. My tablet will sometimes say "connect your charger" even though the battery and indicator are 100%.
I don't think people realize how much drain the display is on the battery. They flash a cool rom and use it a lot and then think they are getting bad battery life because the display has been on for two hours while they play with it. It is amazing the amount of difference I get between when I am fidgeting with my phone while I am at work (have to recharge during the day) and when I am at home on the weekend and it sits on the kitchen table most of the time (it will generally go all weekend without a charge).

Wonder why its even an option to wipe battery stats with apps or recovery if it doesnt do anything. I never saw a difference myself, I just wiped them periodically cause others seemed to think it made a difference.

Always worked for me. Been flashing since g1 days. whatever
Sent from my HTC Glacier using xda premium

jayb222 said:
Always worked for me. Been flashing since g1 days. whatever
Sent from my HTC Glacier using xda premium
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Ya well she helped make the original rom for your g1 so she must be wrong. The thickness of some peoples head
Sent from my Galaxy Nexus

mark manning said:
Ya well she helped make the original rom for your g1 so she must be wrong. The thickness of some peoples head
Sent from my Galaxy Nexus
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+1 lol
Sent from my HTC Glacier using xda premium

First of all those of us who actually knows about Android OS really knows that /data/system/batterystats.bin is nothing more than stats audit. Now if you think you can't actually re-calibrate battery and project that data than your a fool. It has nothing to do with that file.
First of all to accurately predicate it you need a true daemon that's capable of tracking system data with full autonomy access. Second you need correct battery specs from the manufacturer. As reading memory from it may or not even be supported by the device kernel if its not allocated. Thus you see issues with cross link batteries on stock roms, but some is exceptional with similar size, specs.
Now to project the correct data from ~1-100% you need to fully discharge for it to cycle. Yes I know some of you maybe saying never fully discharge Li-Io but if you know the min mV rating then you can stop near suggested mV as it won't go below and damage cells. From then the duration of full charge is defined along with total available mAh. By calculating discharged -mA draw pre scale unit over empty estimation you can predict the true battery percentage.
Ex: ATM my uptime is 14h 47m at 65% with moderate usage (talk, txt, web). Since I have MP1650mAh battery I'm currently at 1072mAh. As its drawing -90mA per scale unit with 4156mV. At this current rate fully projected empty estimation is 9h 38m. Keep in mind my deviceis highly optimized and is on very aggressive battery saving mode.
Sent from my HTC Glacier

HTC Glacier said:
First of all those of us who actually knows about Android OS really knows that /data/system/batterystats.bin is nothing more than stats audit. Now if you think you can't actually re-calibrate battery and project that data than your a fool. It has nothing to do with that file.
First of all to accurately predicate it you need a true daemon that's capable of tracking system data with full autonomy access. Second you need correct battery specs from the manufacturer. As reading memory from it may or not even be supported by the device kernel if its not allocated. Thus you see issues with cross link batteries on stock roms, but some is exceptional with similar size, specs.
Now to project the correct data from ~1-100% you need to fully discharge for it to cycle. Yes I know some of you maybe saying never fully discharge Li-Io but if you know the min mV rating then you can stop near suggested mV as it won't go below and damage cells. From then the duration of full charge is defined along with total available mAh. By calculating discharged -mA draw pre scale unit over empty estimation you can predict the true battery percentage.
Ex: ATM my uptime is 14h 47m at 65% with moderate usage (talk, txt, web). Since I have MP1650mAh battery I'm currently at 1072mAh. As its drawing -90mA per scale unit with 4156mV. At this current rate fully projected empty estimation is 9h 38m. Keep in mind my deviceis highly optimized and is on very aggressive battery saving mode.
Sent from my HTC Glacier
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http://batteryuniversity.com/learn/article/how_to_prime_batteries
The truth is out there
Sent from my Galaxy Nexus

mark manning said:
http://batteryuniversity.com/learn/article/how_to_prime_batteries
The truth is out there
Sent from my Galaxy Nexus
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And that is why you don't allow fools to use Google. Do you actually understand or comprehend what was said? Let me ask you this why do you think they "wipe batterystats"? What's the reason for it? lol he thinks you can't predict actual mV/mAh of battery based on mA draw lol now that isfunny. The whole reason of having any UI battery metter was based on what logic? Next time you Google.com something make sure you actually comprehend what was the logic behind it. Hey all THE truth is out there...
Sent from my HTC Glacier

HTC Glacier said:
And that is why you don't allow fools to use Google. Do you actually understand or comprehend what was said? Let me ask you this why do you think they "wipe batterystats"? What's the reason for it? lol he thinks you can't predict actual mV/mAh of battery based on mA draw lol now that isfunny. The whole reason of having any UI battery metter was based on what logic? Next time you Google.com something make sure you actually comprehend what was the logic behind it. Hey all THE truth is out there...
Sent from my HTC Glacier
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The sad part was I was backing up on what you said. Calm down read it in lame mans terms before you trip.
Sent from my Galaxy Nexus

Man, its getting hot in here. Lol.
Ok, so, if wiping battery stats is useless because it does NOTHING to the battery, is there a way to address the battery and force it to allow a slight overcharge on a regular basis, thereby shutting charging off at a higher capacity?
Please forgive my ignorance gentleman, and refrain from verbally bashing me.
I bought a 1550 mAh Anker battery. If I charge it to 100% and then use it, it stays at 100% for hours. Is this because my phone is waiting for it to drop below 1400 mAh, or what? If that's the case can I somehow tell my phone to consider 1550 mAh 100%?
I ask because of the mugen power app on the market. It intrigued me. Though there is a chance its a bunch.of balogna.
Sent from my HTC Glacier using XDA App

mark manning said:
The sad part was I was backing up on what you said. Calm down read it in lame mans terms before you trip.
Sent from my Galaxy Nexus
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sorry I knew that was another possibility, my mistake. I thought the link you posted some how undermines what I said as you quoted me. As I only posted how to accurately predict and report battery data. Also I think you know who I am...
estallings15 said:
Man, its getting hot in here. Lol.
Ok, so, if wiping battery stats is useless because it does NOTHING to the battery, is there a way to address the battery and force it to allow a slight overcharge on a regular basis, thereby shutting charging off at a higher capacity?
Please forgive my ignorance gentleman, and refrain from verbally bashing me.
I bought a 1550 mAh Anker battery. If I charge it to 100% and then use it, it stays at 100% for hours. Is this because my phone is waiting for it to drop below 1400 mAh, or what? If that's the case can I somehow tell my phone to consider 1550 mAh 100%?
I ask because of the mugen power app on the market. It intrigued me. Though there is a chance its a bunch.of balogna.
Sent from my HTC Glacier using XDA App
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That is THE prime reason people "wipe batterystats.bin" thinking it would fix staying for hours at 100% delay and heavy drop in short time. Which is sign of missing true data. Normally its measured via min/max mV and available mAh. Now by subtracting the used mA per scale unit the empty estimation is calculated. Thus projecting power draw at given duration and near accurate battery metter.
Sent from my HTC Glacier

HTC Glacier said:
sorry I knew that was another possibility, my mistake. I thought the link you posted some how undermines what I said as you quoted me. As I only posted how to accurately predict and report battery data. Also I think you know who I am...
That is THE prime reason people "wipe batterystats.bin" thinking it would fix staying for hours at 100% delay and heavy drop in short time. Which is sign of missing true data. Normally its measured via min/max mV and available mAh. Now by subtracting the used mA per scale unit the empty estimation is calculated. Thus projecting power draw at given duration and near accurate battery metter.
Sent from my HTC Glacier
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kinda wondered if that was you, didnt have your typical avatar tho
Sent from my Galaxy Nexus

So with this being said then you don't have to worry about your battery percentage between flashing roms?
The battery life should be still accurate?
I have a 1700mah
Sent from my HTC Glacier using xda premium

HTC Glacier said:
That is THE prime reason people "wipe batterystats.bin" thinking it would fix staying for hours at 100% delay and heavy drop in short time. Which is sign of missing true data. Normally its measured via min/max mV and available mAh. Now by subtracting the used mA per scale unit the empty estimation is calculated. Thus projecting power draw at given duration and near accurate battery metter.
Sent from my HTC Glacier
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Click to collapse
Yes, of course it is the prime reason. My question was, is there a way to tell the phone that 1550 is 100% or do I just deal with inaccurate monitoring that is based on a 1400 mAh battery?
Or, alternatively, will android figure it out over time and adjust for me?
Sent from my HTC Glacier using XDA App

answer me this: why in miui does the hardware led light up green when miui tells me im only at 90%? when i check the mv with the battery calibration app it tells me im at 4220 which is a full charge...what makes miui not see that the battery is full?

Before battery calibration, regardless of what happens, I was getting 9 hours, light usage. After battery calibration I get 19 hours, medium use. I'll stick with it with my thick headed self.
Sent from my HTC Glacier using xda premium

Where is v6 supercharger?

Can someone shoot me a link please I can't seem to find it. It not really the supercharger that I'm looking for its the battery calibrator that I've seen in the same thread if anyone knows I'd appreciate it. Thanks in advance
Sent from my Nexus S 4G using Tapatalk 2

Battery calibration isn't going to make your battery any better.
Sent by pocket technology

It stated that it could give me a fuller charge. I have a 3500Mah battery so I don't care about that. I just need to make sure I'm getting a full charge. You know all the way to 4200mv
Sent from my Nexus S 4G using Tapatalk 2

You're getting the full charge, don't worry about it. It's not a good indication, due to the fact it's a cheap onboard voltmeter, lithium ion batteries keep their voltage much better than lead acid batteries and keeping the charge and voltage even close to that level for extended periods of time damage your battery exponentially compared to other charges.

Harbb said:
You're getting the full charge, don't worry about it. It's not a good indication, due to the fact it's a cheap onboard voltmeter, lithium ion batteries keep their voltage much better than lead acid batteries and keeping the charge and voltage even close to that level for extended periods of time damage your battery exponentially compared to other charges.
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So the script is bull ****?
Sent from my Nexus S 4G using Tapatalk 2

treyweez11 said:
So the script is bull ****?
Sent from my Nexus S 4G using Tapatalk 2
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Reading the script just now, all it does is a long and winding process to delete the batterystats.bin file. Note that this has nothing to do with calibration or supply capabilities, it is quite literally just the little graph and app usage % in the settings -> battery menu (which is deleted automatically once charge gets between 90 and 95%).
There is a few other things which it fiddles around with which looks like a futile effort to confuse the battery/OS into giving a false value of "full charge" at the least.

[Q] Honestly, is the Skyrocket a "good" phone?

So here is the deal... I have been a Verizon customer for years, and I am just sick and tired of them jerking me around and upping their rates, taking away unlimited data, taking away early upgrades, etc. So I am thinking of jumping ship and going to Net10. I am currently using the HTC Rezound which seems to be roughly roughly equivalent to the Skyrocket (Yes, I know I will not get true 4G/LTE on Net10, only HSPA+). I can get a new, sealed in the box Galaxy S2 Skyrocket (SGH-i727) for about $210 on eBay.
So where I am going with this, knowing Samsung has had quality models and, well, lets just say questionable models, how is the Skyrocket? Is it solid and relatively problem free? How is battery life, is it easy to unlock, root, ROM, return to stock, etc? Has anyone used this on Net10/StraightTalk?
So basically I am just looking for people's opinion of the phone in general, from a heavy phone users perspective... My other alternative's at this time are a new unlocked HTC Vivid which I can get new for just under $200, or just suck it up and grab a Nexus 4 from Google, although the $350+tax and shipping for the 16GB model would hurt, a lot, right now.
Thoughts?

I, along with most other power users here in the skyrocket forum will tell you that this is a great device. Rooting, rom-ing, and general modifications are a breeze as long as you read the stickies and have an ounce of common sense. Battery life is subjective to individual use, but I generally get around 12-15 hours with 3-5 hours screen on time. This can be extended significantly with a nexus extended battery and a minor modification (see accessories section for details). Hardware wise it it solid. The only common issue we've really seen is the power button failing for some users, I've had mine since it was released though with no issue so far. We have official support for CM, Slim Bean, PACMAN, and Avatar ROM (maybe more but I can't remember off hand), and ports or unofficial builds of just about everything else you'd want. Also, 4.3 is being worked on hard by our fine devs, and it seems that external speaker audio is the only thing preventing a beta release for most roms at the moment.
The community is, for the most part, knowledgeable and willing to assist with any problems you have as long as you attempted to do your homework first.
Any other questions, let me know. Otherwise, I'll extend a tentative welcome to the Skyrocket family.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

bps119 said:
I, along with most other power users here in the skyrocket forum will tell you that this is a great device. Rooting, rom-ing, and general modifications are a breeze as long as you read the stickies and have an ounce of common sense. Battery life is subjective to individual use, but I generally get around 12-15 hours with 3-5 hours screen on time. This can be extended significantly with a nexus extended battery and a minor modification (see accessories section for details). Hardware wise it it solid. The only common issue we've really seen is the power button failing for some users, I've had mine since it was released though with no issue so far. We have official support for CM, Slim Bean, PACMAN, and Avatar ROM (maybe more but I can't remember off hand), and ports or unofficial builds of just about everything else you'd want. Also, 4.3 is being worked on hard by our fine devs, and it seems that external speaker audio is the only thing preventing a beta release for most roms at the moment.
The community is, for the most part, knowledgeable and willing to assist with any problems you have as long as you attempted to do your homework first.
Any other questions, let me know. Otherwise, I'll extend a tentative welcome to the Skyrocket family.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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Thanks for the info!!! I really appreciate it!!!
One more quick question, does the Skyrocket use a standard sized SIM, or one of the newer micro-SIMs?

acejavelin said:
Thanks for the info!!! I really appreciate it!!!
One more quick question, does the Skyrocket use a standard sized SIM, or one of the newer micro-SIMs?
Click to expand...
Click to collapse
Standard.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

One issue bothers me a lot. I cannot use the phone for navigation for more than 2 hours even with car charger connected. In about 2 hours, it drains out fully. My latest theory is that after about 30 mins of charging, the battery starts heating up, and so it stops charging.

unni_kmr said:
One issue bothers me a lot. I cannot use the phone for navigation for more than 2 hours even with car charger connected. In about 2 hours, it drains out fully. My latest theory is that after about 30 mins of charging, the battery starts heating up, and so it stops charging.
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User error or bad unit I have zero issues with my GPS or car charging. Also what amperage is your car charger capable of outputting.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

mtdew said:
User error or bad unit I have zero issues with my GPS or car charging. Also what amperage is your car charger capable of outputting.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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I am not 100% sure in terms of the amperage. But I tried with a car charger capable of charging a laptop, using the wall charger and cable which came with the phone. I was sitting in the passenger seat, phone was in my lap (not mounted in windshield) and Google Maps was running in navigation mode. For the first 15 minutes or so, I saw that the phone was charging. The charge level increased by 1% or 2%. After I think 20 minutes, it stopped charging. CPU-Z app was showing battery status as
health: over heated or heated (don't remember clearly the text)
power source: connected
status: not charging or discharing
Phone's back was very hot. I unplugged the USB cable and connected it back, and it started charging again! I waited for it to cool down, removed the phone case, repeated this and got the same result.
This is why I believe the phone is doing something to protect it from over heating. I am not sure though.

Well, I placed my order and should have my Skyrocket by the end of the week, and already have my Net10 SIM and $50 Unlimited card! So basically I am saying you will see more of me around here in the future. Thanks again bps119!

unni_kmr said:
I am not 100% sure in terms of the amperage. But I tried with a car charger capable of charging a laptop, using the wall charger and cable which came with the phone. I was sitting in the passenger seat, phone was in my lap (not mounted in windshield) and Google Maps was running in navigation mode. For the first 15 minutes or so, I saw that the phone was charging. The charge level increased by 1% or 2%. After I think 20 minutes, it stopped charging. CPU-Z app was showing battery status as
health: over heated or heated (don't remember clearly the text)
power source: connected
status: not charging or discharing
Phone's back was very hot. I unplugged the USB cable and connected it back, and it started charging again! I waited for it to cool down, removed the phone case, repeated this and got the same result.
This is why I believe the phone is doing something to protect it from over heating. I am not sure though.
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Amperage is important son too little it will discharge, I think it will limit if too much. Nav can cause some heat for some of these guys but I've never heard of it getting that high my guess is something was wrong.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

mtdew said:
Amperage is important son too little it will discharge, I think it will limit if too much. Nav can cause some heat for some of these guys but I've never heard of it getting that high my guess is something was wrong.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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Sorry for off topic. Can you please recommend a charger, preferable the one you are using?

unni_kmr said:
Sorry for off topic. Can you please recommend a charger, preferable the one you are using?
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I have gotten my last few chargers at Sam's Club, they are about $10, and are rated at [email protected]
In an older phone I had a similar issue where my phone would overheat and not charge properly, once I got a new charger I cut the end off the old one and read the voltage with a meter, it was putting out almost 7.1v (should be 4.75-5.25vDC for USB 1.0-2.0 standard, and 5.25-5.75vDC for USB 3.0), pretty sure that is what caused it... cheap components equals cheap quality and flaws. Current rating should be irrelevant, as long as it meets the devices minimum requirements (most modern phones are [email protected]), even if a charger is rated at 2, 3, or even 5 amps, the device should not draw more than it can handle. Current is drawn, not pushed, a device will draw the needed current at the expected voltage, you can't really "over-current" a device by using a power source that is rated at the proper voltage but a higher current. Similar instance can occur by using a charger that has too low of a current rating, the device will try to draw more current than the adapter is rated at and the adapter will eventually fail or fall out of specifications.
Some other good chargers are by Anker, PowerGen, or RAVPower, and of course a Samsung branded adapter will work well, most all of these can be purchased for $8-$15 on Amazon. If the adapter is not rated with a current rating, then skip it, it is probably only 600ma-750ma and will be more headache than it's worth in the long run.

acejavelin said:
I have gotten my last few chargers at Sam's Club, they are about $10, and are rated at [email protected]
In an older phone I had a similar issue where my phone would overheat and not charge properly, once I got a new charger I cut the end off the old one and read the voltage with a meter, it was putting out almost 7.1v (should be 4.75-5.25vDC for USB 1.0-2.0 standard, and 5.25-5.75vDC for USB 3.0), pretty sure that is what caused it... cheap components equals cheap quality and flaws. Current rating should be irrelevant, as long as it meets the devices minimum requirements (most modern phones are [email protected]), even if a charger is rated at 2, 3, or even 5 amps, the device should not draw more than it can handle. Current is drawn, not pushed, a device will draw the needed current at the expected voltage, you can't really "over-current" a device by using a power source that is rated at the proper voltage but a higher current. Similar instance can occur by using a charger that has too low of a current rating, the device will try to draw more current than the adapter is rated at and the adapter will eventually fail or fall out of specifications.
Some other good chargers are by Anker, PowerGen, or RAVPower, and of course a Samsung branded adapter will work well, most all of these can be purchased for $8-$15 on Amazon. If the adapter is not rated with a current rating, then skip it, it is probably only 600ma-750ma and will be more headache than it's worth in the long run.
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Good to see that we're getting a new user who actually does their homework. :thumbup:
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

acejavelin said:
Well, I placed my order and should have my Skyrocket by the end of the week, and already have my Net10 SIM and $50 Unlimited card! So basically I am saying you will see more of me around here in the future. Thanks again bps119!
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Just like to say great. I love my skyrocket. Over clocked at 1.78ghz and 320mhz gpu . great performance. Also with nexus extended battery for $6.50 at sprint. I have no reason to buy another phone. Welcome to the skyrocket community.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

I have an HTC Sensation and today I rooted my friend's Skyrocket. I must say, EVERYTHING about the Skyrocket amazed me in terms of performance, ease of use, and quality even though it's very similar in hardware specs to my own phone (both are MSM8x60). Rooting the phone only took about 3 minutes (installed TWRP; there was no locked-bootloader crap to deal with) and the colors on the touchscreen are wonderful, not to mention the sensitivity of the screen is great as well. The Skyrocket has official CM10.1 going for it so I installed that and it's fantastic; everything runs perfectly. Even while using the kernel included in CM10.1 the device was very fast but when I overclocked it, the performance blew me away, not to mention the phone didn't heat up at all (even while gaming!); compared to that, my HTC hits 70°C while gaming on CM10.1 at stock CPU/GPU frequencies. Rooting my friend's Skyrocket today has thoroughly convinced me to never buy an HTC again Also, the Skyrocket has great dev support seeing as how CM10.1 is official for it.
TL;DR: The Skyrocket is way better than your HTC and, in terms of development, it's not gonna die any time soon.

unni_kmr said:
One issue bothers me a lot. I cannot use the phone for navigation for more than 2 hours even with car charger connected. In about 2 hours, it drains out fully. My latest theory is that after about 30 mins of charging, the battery starts heating up, and so it stops charging.
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The Skyrocket (and several other Samsung phones) need special "type 2" chargers. Apple charges are type 6, so if it says compatible with Apple, don't use it as it may not work. If the two center pins on the USB port doesn't have a 50 ohm resistor across them (or not shorted) , the Skyrocket will only draw 350 mA. Samsung and older Curve BlackBerry chargers have the resistor. At 350 mA, the phone draws more than the charger is providing, and the charger circuitry heats up trying to keep up with demand.
Jrockttu has a great thread under General called "Fix your Skyrockets battery life"
I've MOD'd all of my chargers, now my phone is happy with the screen on all day while driving and it stays charged, or charges slowly...
Tim
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

I recently got rid of my Skyrocket. It was a good device, but a bad phone. The built-in microphone is terrible, people were always screaming that they couldn't hear me unless I used a headset. The signal was poor too, and I would often not receive calls (with no missed call notification or anything).
The Cyanogenmod support is good, and for an old device it runs plenty smooth and plays all the games I throw at it. So it's not bad in that regard. But the actual phone functionality was a real problem for me.

frogacuda said:
i recently got rid of my skyrocket. It was a good device, but a bad phone. The built-in microphone is terrible, people were always screaming that they couldn't hear me unless i used a headset. The signal was poor too, and i would often not receive calls (with no missed call notification or anything).
The cyanogenmod support is good, and for an old device it runs plenty smooth and plays all the games i throw at it. So it's not bad in that regard. But the actual phone functionality was a real problem for me.
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user error
---------- Post added at 06:47 PM ---------- Previous post was at 06:46 PM ----------
mtdew said:
Faulty device or user error.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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lol didn't see your post

acejavelin said:
Well, I placed my order and should have my Skyrocket by the end of the week, and already have my Net10 SIM and $50 Unlimited card! So basically I am saying you will see more of me around here in the future. Thanks again bps119!
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Well, my Skyrocket arrived, looked great and appeared to be "new"... I fired it up and everything looked fine, but it wouldn't recognize the SIM card, just said "NO SIM INSTALLED - EMERGENCY CALLING ONLY" and wouldn't let me do anything in mobile networks at all (said something about must be registered to a network first), so I popped in an actual AT&T SIM, same result, and both SIM cards work in my old HTC Aria. Called the guy I bought it from on eBay, have to send it back and he will send me another new one. Hope this isn't a bad omen.

That sucks man, kinda takes the excitement out of getting the new phone. Oh well, forget it ever happened and hope that it was just a fluke.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

Honestly, you'll love the skyrocket. I've had mine for a little over a year and a half and it's more up-to-date than my girlfriend's s3. It's faster and lasts longer on battery as well. Although her s3 isn't rooted, being a newer device, you would think it would work better than mine. Not the case!
If you're trying to unlock your phone, there is an unlocking thread you could check out, although I'm not on touchwiz so I couldn't do it, others have had success with it so you shouldn't have to worry there. We're a great community, just like we've been when I first rooted a year and a half ago. Enjoy!

Charge to 80% or 100% ?

I've been an avid follower of Accubattery and keeping my battery from degrading...BUT I'm curious if anyone knows, is this still a thing in 2020 with the N20U?
https://accubattery.zendesk.com/hc/en-us/articles/210224725-Charging-research-and-methodology
They appear to have sound research on it but wondered if anyone else has information about it?

Huh? I've been charging my phones to 100% since 2008. Don't worry about it.
Sent from my SM-N975F using Tapatalk

I think it stands for old batteries and chargers, that charged them at a constant rate while lithium ones are sensitive to heat (at least) and need variable voltage and current depending of their actual charge level or they degrade faster over time.
And that exactly what the Power Delivery standard does which Samsung phones are compliant since the Note 10 if I'm not wrong.
So i wouldn't mind charging to 100%

I've been charging my phones to 100% and leaving them on the charger overnight for years! I've never seen any noticeable degradation of the battery life due to this.

Brava27 said:
Huh? I've been charging my phones to 100% since 2008. Don't worry about it.
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Pretty much this lol.
I try not to leave them on the charger all night these days but I did that for years also and no issues either.

Not worth the hassle for me. I've had slight battery degradation if I keep a phone two years, but hardly worth daily struggles. I usually upgrade after a year anyway, haha.

force70 said:
Pretty much this lol.
I try not to leave them on the charger all night these days but I did that for years also and no issues either.
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We also change phones every 6-12 months [emoji1787]
Sent from my SM-N975F using Tapatalk

Brava27 said:
We also change phones every 6-12 months [emoji1787]
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Haha yeah thats a good point...never have one long to even think about battery issues lol

I charge my Note 10+ to 80% and Accubattery shows battery health at 99.95%
I have noticed battery health falling about 8% in one year of use if you always charge to 100%. That being said, I think Samsung has improved batteries a lot and Note10+ onwards use special battery that degrades slower than previous devices

The old 40%-80% was for older technology batteries. Even then it only extended the battery life marginally, and only over many years. it's not like it's a magic cure to make your battery last a significantly long time.
Just charge the phone to 100% whenever you need to, and don't worry about how often yo need to charge it. Battery technology has come so far, and it doesn't matter how often you charge them or how high. There's technology in there to stop charging once it reaches 100% so that it doesn't overcharge.

On the Tab S tablet and under the charging setting there's a protect battery toggle where it will charge the battery to 85%.
I don't know why they don't have this option on their phones but I'm not sure how necessary it really is.
Sent from my SM-N986U using Tapatalk

I still do the 20%-80% thing...lol...
I'm kinda OCD
Sent from my SM-N986U using Tapatalk

I had great success on my note 9 with the 80 percent charge. Over the long haul it seemed to me to keep getting better. I am doing it now to see how it goes . I also avoid fast charging as much as possible to see if that helps as well. I wasn't aware that they made changes since the note 9 ,so maybe it's all for nothing.
Sent from my Samsung SM-N960U1 using XDA Labs

I seem to be on a “how to” kick this AM .... so I understand the debate about 80 vs 100
But how in the heck do you guys actually accomplish only charging to 80%?? I’m so busy I can’t remember to do half the stuff that I really need to remember , let alone remember to take my phone off the charger.
Also do you guys just turn of all 3 of the “fast charging” options in the settings , unless you need them at a particular time?

jcrompton said:
I seem to be on a “how to” kick this AM .... so I understand the debate about 80 vs 100
But how in the heck do you guys actually accomplish only charging to 80%?? I’m so busy I can’t remember to do half the stuff that I really need to remember , let alone remember to take my phone off the charger.
Also do you guys just turn of all 3 of the “fast charging” options in the settings , unless you need them at a particular time?
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I used to turn of all fast charging options. I also would find a routine where the time needed to charge matched the time I was doing something without the phone. For me in the morning when getting ready for work was the best time . Had it down to a science, and the alarm from accu battery helps me as well. It does go kinda rough at first, but after a month or so , I did notice that the charges to 80 lasted longer, then it was down to once a day.
Sent from my Samsung SM-N960U1 using XDA Labs

I bought this nifty little gadget called a Chargie (chargie.org). DHL/USPS still jerking me around on delivery so I've not yet received it, but oddly excited about trying it.

Have you guys noticed with wireless charging the phone is still warm after reaching 100 percent.

Chargi
k.babymamma said:
I bought this nifty little gadget called a Chargie (chargie.org). DHL/USPS still jerking me around on delivery so I've not yet received it, but oddly excited about trying it.
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Woow this is exqactlz i was looking for thanks

borijess said:
Have you guys noticed with wireless charging the phone is still warm after reaching 100 percent.
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Did you finally get and does it work well as advertised?

I opened a separate thread some time ago and people advised to use 30-80 range. I also have Accubattery and follow this principle religiously. However, no matter how I do it, the power charge cycle goes up like crazy. My phone is 2 weeks old and the cycle is now 15 whilst it says the average life is 400-500 cycles. I never bothered about this with my previous phones but don't know what to do with this one. I want it to serve for at least 2 years before I upgrade.