Develop Bugs

Can I recharge the battery every day?

There are lots of myths regarding lithium batteries.. some say you are not supposed to overcharge it (charge it only when it's running out)
Some say it doesn't matter since lithium can be recharged as much as you want and it won't deteroriate the battery's life.
Which one? Can I recharge my Touch Pro 2 every night before I go to bed and leave it until morning? or should I do it when it's running out to preserve the battery's life?

You should keep the device on A/C power as much as possible. So, it's fine to charge daily overnight. Every once in a while, you should let the battery run all the way out before recharging. What this will do is keep your battery meter reading accurate. If you don't do this, eventually, your device will "think" it has more juice than it actually does.

Check this:
http://www.batteryuniversity.com/parttwo-34.htm

Ah thanks
So to cut the story short, recharge it as much as you can and prevent the battery ever from being run out

Nahhh, not fully true. Somewhere else on the site of batteryuniversity it sais that completely discharging the battery will reset it's memmory. This is usefull after a lot of charges and discharges (in the beginning, I think they already did this (you may hope).
(the memmory helps the battery know where his power is storaged and how much power the battery has left. But doing this frequent speeds up the battery 's lenght of life

In my experience
Enjoy your device and charge battery when needed/desired
Use it normal
Batteries have a duration of 3-4 years aprox, no matter if you charge it every night or leave it till it´s empty...
When battery fails you buy another one and so on
Just my opinion,

My experience with the battery life on my touch pro 2 is that I will keep the phone usually docked in my cradle on my desk when working so it's always on charge. When I use my battery I wait till it's about 40-30% drained and will stick it on the cradle again.
When I'm in my bed ready to sleep, I use the normal charger and leave it on charge over night.
Still experimenting though.

ilabstudios said:
My experience with the battery life on my touch pro 2 is that I will keep the phone usually docked in my cradle on my desk when working so it's always on charge. When I use my battery I wait till it's about 40-30% drained and will stick it on the cradle again.
When I'm in my bed ready to sleep, I use the normal charger and leave it on charge over night.
Still experimenting though.
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Do you have a cradle for your Rhodium ? Where did you get it ?

Check my battery thread, it will tell you pretty much everything about li-ion batteries and taking care of them
http://forum.xda-developers.com/showthread.php?t=519673

quarintus said:
Nahhh, not fully true. Somewhere else on the site of batteryuniversity it sais that completely discharging the battery will reset it's memmory. This is usefull after a lot of charges and discharges (in the beginning, I think they already did this (you may hope).
(the memmory helps the battery know where his power is storaged and how much power the battery has left. But doing this frequent speeds up the battery 's lenght of life
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Click to collapse
Hmm, first of all Li-ion batteries have NO MEMORY unlike NiCd batteries. You probably refer to resetting the reading gauge - which is related to device's capability of getting accurate reading rather than battery itself. It is recommended to let the device die once a month and give it a full charge to "recalibrate" phone's battery meter (not the battery).
But you should avoid hitting 100% battery mark as well as going bellow 30% as much as possible.

from my experience as a phone shop owner and owner of many many phones i always advise my customers and friends as follows:
1st charge 10-12 hrs. allow battery to fully discharge
2nd charge at least 8 hrs
after 2nd charge you can charge and use as you want. the initial 2 charges kick start everything and starts your battery cycle on good stead
never had any complaints!

Another thing, is it bad to use your device whilst plugged in?

danmb said:
Another thing, is it bad to use your device whilst plugged in?
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its ok to do that as it will run off ac power while plugged in

danmb said:
Another thing, is it bad to use your device whilst plugged in?
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The battery should be as cold as possible when charged. So if you are using the phone the battery power drains and is charged at the same time. Therefore it gets warmer than without.
Best for the battery is to be charged when the device is switched off completely.
I wouldn't consider that much of a problem, because you have bought the device to use it and not to live in fear that you treat the battery right

when plugged into USB and playing a game on my TP2 I got the message the device is using too much power, and it drained the battery even though recharging via USB. No problems when using AC adapter though.

Used my XDA Orbit 2 for 2 years now, and mostly charged at free will. Battery is still fine, so no special charging rules for me...
I noticed though, that charging over USB takes quite some time while charging over AC cable is done within an hour or so. When looking at my AC it has 5 Watts of output power, while the USB only has 2.5. That would explain your issue with the battery running out even when having the USB cable plugged in.

StealthNet said:
Do you have a cradle for your Rhodium ? Where did you get it ?
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http://www.htcaccessorystore.com/uk/p_htc_item.aspx?i=179339

Battery Calibration Issues?

Hi All,
I posted this on MoDaCo initially but it seems either noone was interested or not many people have a Galaxy Nexus on that forum. So, I'm going to paste the post I put on there and see if you guys are having similar issues as its starting to become an annoyance.
Just so people don't start moaning, this ISN'T related to the Battery draining problem I originally posted a week or so back. My battery issues are fixed thanks to the wonderful devs who made Juice Defender.
Anyways, back on topic. I've noticed ever since I've gotten my GNexus that the battery never fully charges to 100% without me unplugging it and plugging it back in again to FORCE it to charge to 100%. I've tried the usual battery calibration trick and I have also tried an app on the market that is supposed to work.
I then tried wiping and putting the stock ROM back on, but to no avail. Wiping batter stats via CWM comes up with the same as well.
My battery is capable of charging to 100% but its only if I unplug it from charging and them plug it back in again.
I've tried charging via USB and via the wall charger both with the same results. My question is, are you guys having these issues? Is there anyway of fixing this that I haven't already tried?

There are a lot of threads about this already, please use the search before posting. This is normal behavior, batteries will never keep charging once they hit 100%, they stop charging and will charge again after they have dropped a few percentages. This is to protect the battery.

I have the same 'issue'. Not that I am too concerned about 1-2% but every morning when I unplug and look at the phone its on 98%-99%. never 100%

This is, in fact, a good thing.
The max voltage you may charge a LiIon cell to is 4.20V. If you charge it slightly less, say to 4.15V (~95%), you will get a lot more charge cycles out of it.
Also, the more time the battery stays at max voltage (or close to it), the faster the battery ages.

kristovaher said:
There are a lot of threads about this already, please use the search before posting. This is normal behavior, batteries will never keep charging once they hit 100%, they stop charging and will charge again after they have dropped a few percentages. This is to protect the battery.
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search is hard to understand
</sarcasm>

[Q] Does anyone else's battery only charge to 99%?

I saw 100% once on my phone, but otherwise it typically charges to 99%, or at least that's what's displayed when I unplug it in the morning.
That said, it's usually plugged in for about 6-7 hours. My HTC G2 always went to 100%.
I'm not sure if this is a functionality of the Galaxy Nexus; I've heard of devices that stop the charging cycle if the battery has been at 100 for a while.
So, does anyone else see this happening?

It charges to %100 then drops down to %90 then slowly charges back up to %100. This is normal practice used by most smartphones to keep the battery healthy and not let it get overcharged (Which would be very bad). No problem whatsoever.

miketoasty said:
It charges to %100 then drops down to %90 then slowly charges back up to %100. This is normal practice used by most smartphones to keep the battery healthy and not let it get overcharged (Which would be very bad). No problem whatsoever.
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Kind of what I figured but wanted to ask others. Thanks for the speedy response!

[Q] Slow fast charge?

Is everyone really getting the 50% charge in 30 mins? It feels like I am getting about 1% per 1 min of charge time on average. Not sure if that is normal or I have a defect somewhere? Also, is fast charging safe to use for every charge session or is it meant to be used once in a while for emergencies? Thank you.

yes my phone will go from zero to 100% in an hour no problem when using charger that came with phone

oneandroidnut said:
yes my phone will go from zero to 100% in an hour no problem when using charger that came with phone
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Really? Did it charge like that from the very beginning or did it take a few charges to get to that speed? I think it takes me like 1.5-2 hrs from real low to full charge with fast charge enabled.

burntrat said:
Really? Did it charge like that from the very beginning or did it take a few charges to get to that speed? I think it takes me like 1.5-2 hrs from real low to full charge with fast charge enabled.
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yup and as long as i can remember it has always done it. It goes stupid fast. went from 30% to full in under 40 mins thing flies

oneandroidnut said:
yup and as long as i can remember it has always done it. It goes stupid fast. went from 30% to full in under 40 mins thing flies
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Were all your fast charges with the phone on or off?

burntrat said:
Were all your fast charges with the phone on or off?
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phone on

Hmmm... I am on day 14 with the phone. Wondering if I should return it to vz....

burntrat said:
Is everyone really getting the 50% charge in 30 mins? It feels like I am getting about 1% per 1 min of charge time on average. Not sure if that is normal or I have a defect somewhere? Also, is fast charging safe to use for every charge session or is it meant to be used once in a while for emergencies? Thank you.
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I used to get those insanely fast charge times; however, recently my phone has been charging slower (with fast charging on). Not only that, but, for some reason, the original wall adapter stopped working twice now. The first time it freaked me out because I thought my phone was messed up, but it turned out that everything was working except the adapter. Then later, I found out that if I reboot my phone with the adapter plugged into the wall, the charger will magically start working again! This worked for one or two charges. Today, I found that my phone was, again, charging extremely slow. Not only that, but my phone stopped charging after around 50% and the adapter is broken once more. I've tried the reboot thing three times and it didn't work again T: So now I'm kind of worried my phone might be defective?
Has this happened to anyone else with charging issues?

JippleStar said:
I used to get those insanely fast charge times; however, recently my phone has been charging slower (with fast charging on). Not only that, but, for some reason, the original wall adapter stopped working twice now. The first time it freaked me out because I thought my phone was messed up, but it turned out that everything was working except the adapter. Then later, I found out that if I reboot my phone with the adapter plugged into the wall, the charger will magically start working again! This worked for one or two charges. Today, I found that my phone was, again, charging extremely slow. Not only that, but my phone stopped charging after around 50% and the adapter is broken once more. I've tried the reboot thing three times and it didn't work again T: So now I'm kind of worried my phone might be defective?
Has this happened to anyone else with charging issues?
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I haven't ran into anything like that yet. Who is your carrier? Maybe you can take in your charger and battery to get it replaced? Can you try charging with a different quick charging phone or something to narrow down if it's the phone or charger's fault?

burntrat said:
I haven't ran into anything like that yet. Who is your carrier? Maybe you can take in your charger and battery to get it replaced? Can you try charging with a different quick charging phone or something to narrow down if it's the phone or charger's fault?
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Although I am fairly certain that my issue was the wall adapter portion of the charger, I just found it strange that the fast charging function failed to work properly around the same time when my wall adapter started to fail. Hopefully I am right and nothing else was wrong, but I thought that I would say something in-case I was wrong
As for getting it replaced... I bought my Verizon Note 4 at BestBuy off-contract and when I went there, they claimed to not have any in stock. They never really bothered to ask if I wanted to replace it even though I brought all my receipts and junk so I just took that as I wouldn't be getting a replacement haha :crying:
If anything I'll probably end up just buying another fast charger from samsung later, but for now slow charging is fine I guess. The fast charging did make both my device and charger hot, so maybe that was the problem?
edit:
I do not have any other quick charging devices (to my knowledge), but the wall adapter - combined with various other cables - continued to fail with my other phones as well.

I also say about a hour for a full change

mrgigabyte2002 said:
I also say about a hour for a full change
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Weird, I need like 1.5 hrs to get from 15% to full on fast charge and about 1.75 hrs for 15% to full on slow charge.

i timed my 1st charge. 57 min from 0 to 100. phone turned on and screen off.

Yep, to me that's the best feature. No more battery switching.
I even bought the Verizon vehicle charger with fast charge, and it works just as quick

big70tom said:
Yep, to me that's the best feature. No more battery switching.
I even bought the Verizon vehicle charger with fast charge, and it works just as quick
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Do you know if it's safe to use fast charge for every charge up? If it shortens battery life over time, I'd like to know this now and only use fast charge sparingly.

Yes. It shortens battery life. By using the only charger they give you, you essentially cut your battery life in half. It's a conspiracy by Samsung and the makers of the materials used the batteries

big70tom said:
Yes. It shortens battery life. By using the only charger they give you, you essentially cut your battery life in half. It's a conspiracy by Samsung and the makers of the materials used the batteries
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Whoa..it cuts it down that much? Where did you read about this?

burntrat said:
Whoa..it cuts it down that much? Where did you read about this?
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Pretty sure that was sarcasm. I'm less sure about your comment, though. ;P

I read it in American Android, first December issue. They did a study. Only way to avoid the battery dissipation was if you only used the fast charger at night, and Sundays after noon, but before 1pm PST. fascinating article. It's amazing what a group of students at Yale who love Android can actually accomplish.

I think I can work around that charging schedule. I am also going to subscribe to that magazine now.

Battery always showing 0% and shutting down when unplugged!

One fine morning my Note 10.1 2014 battery started showing as 0% and will not 'charge' (i.e., percentage will not rise). As a result, the tablet has to stay plugged-in always to use it (just like a desktop computer). The moment it is unplugged, it shuts down in 1 or 2 seconds. Tried different chargers/cables/flex cables/new battery/uninstalling/reinstalling/warming...& what not. But nothing solves the issue. I came to know that the battery is actually holding/taking in charge which is evident from the fact that the tablet runs without being plugged-in in the recovery/TWRP mode! It seems just that the android OS is not recognizing the charging. Any help would be appreciated. Thank you!

Is the battery really good? The boot menu uses a lot less current than normal boot up operation.
Otherwise you're looking at a possible mobo failure. If it has a charger pcb it could be that.
A Samsung Experience center at a Best Buy might be able to sort it out for you.

blackhawk said:
Is the battery really good? The boot menu uses a lot less current than normal boot up operation.
Otherwise you're looking at a possible mobo failure. If it has a charger pcb it could be that.
A Samsung Experience center at a Best Buy might be able to sort it out for you.
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It is not the battery, I am pretty sure! As for the other possible causes suggested, it seems Samsung considers the product too 'old' now to look into/offer any service/parts replacement. Anyway, thanks for the quick reply!

I got the same experience. Recently installed LOS14.1 on my Samsung 2 7.0 and battery just drained and inspite charging it overnight never recovered. I think it's really the LOS 14.1. Now I cant even boot it up anymore.

tom.cruiser said:
I got the same experience. Recently installed LOS14.1 on my Samsung 2 7.0 and battery just drained and inspite charging it overnight never recovered. I think it's really the LOS 14.1. Now I cant even boot it up anymore.
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Please do post, if you find a solution!

I strongly doubt that LOS14.1 (lineage-14.1-20210320-UNOFFICIAL-lt03lte) is the culprit as my old P605 still works with the unchanged battery.
Once charged it lasts for quite some days (usage 0.5h/day) without problems.
It's always in flight mode and mostly WLAN is shut off.

It's not that cuz of an OS it's the old battery problem....
Same thing happens to one of my cellhphones.
I charrge it to 100 % while it's turned OFF then tomorrow I turned it on and battery is at 1 %, 0 % and shuts off.
It's just old Li-Ion battery which needs replacement.

After having replaced the battery with a new one with about 50% charge the discharged P605 would only recharge to the level of the original charge. It returned to normal behaviour after charging once with the original 5v/2A charger and the original cable with the second GND contact missing. If the latter did the trick, with most cables u can't tell whether the contact is wired to GND or not.
But in the days of miniUSB, the second GND was sometimes used to put the device in charge or pc connection mode, by swapping cables.