How many hours should last the first charge for best results?
Should exhaust the remaining battery (factory) and then charge?
Thanx in advance.
I think the genreal idea is to charge fully and discharge as much as possible before recharging and trying to establish this cycle for the first week or so.
I think as long as you don't keep topping it up at 50% power for the first week, you should be ok.
BANE
geo_25 said:
How many hours should last the first charge for best results?
Should exhaust the remaining battery (factory) and then charge?
Thanx in advance.
Click to expand...
Click to collapse
If you would have taken the time to read the manual, you should know it takes about 3 hours to fully charge the Touch HD when you take it out of the box. I advise 1 time a week to fully discharge the Touch HD to about 5-10% and then charge it back to 100%. That's what I'm doing, and I can use my battery for over 3 days now.
Searching google i found this
http://www.megamobilecontent.com/tips/HTC-Touch HD/All-c0/Page-1/Long-Battery-life-427/
but it is not referred if i should exhaust the remaining battery.
i read in a magazine that in the first 3 charges you should let it drain fully.
and then it says almost the same as what it says in post above from geo_25
Is it OK to have the device switched on during that first charge?
Ta
What if i leave the device on MUSIC thru out the night and drain the battery over night and charge during the day and follows same pattern for three days.Will that be okay?
Alkali said:
What if i leave the device on MUSIC thru out the night and drain the battery over night and charge during the day and follows same pattern for three days.Will that be okay?
Click to expand...
Click to collapse
Yes that is OK, so discharge it any how you can, music, gps, movies...
I remember Nokia used to tell it's service people that within the first month the phone is recommended to be discharged and fully charged 2-3 times, and then it's advisable to do the same once in every 3-4 months to refresh the battery cells.
Funny in most laptops you have a option of calibrating the battery.
Here is a TIP for you....
I've had the HD for a week now. I wanted to let my battery drain, but I often plugged the phone in to my PC and the battery kept charging up.
Soooo, I recommend you tap on the battery icon at the top, then again on the battery icon in the middle of that menu, and then place a check mark to DISABLE charging the battery when the USB is connected.
After you are done going through the fully-drain / fully-charge periods, you can take that check mark off if you want.
PS - Anyone know if the battery has memory? In other words, is it bad to charge it longer than the recommended 3 hours?
geo_25 said:
How many hours should last the first charge for best results?
Should exhaust the remaining battery (factory) and then charge?
Thanx in advance.
Click to expand...
Click to collapse
Lots of mis-information in this thread. I think lots of you are quoting old practices from when phones used Ni-Cd batteries. They developed memories. Li-Ion cells do not. (Which the HD has). You should do a full charge/discharge once in a long while to make sure the phone's voltage meter is calibrated correctly, but that has nothing to do with the battery cell itself. Here's some reading material: http://en.wikipedia.org/wiki/Lithium-ion_battery
This may help.
http://www.batteryuniversity.com/partone-12.htm
Related
Hi everyone,
How long do you charge your SGT to an ac/dc outlet? And how long does the battery life lasts after its fully charged?
Advance thanks!
For mine, charging time (AC) typically 4 hours (from 5 to 10% left). Usage time is subjective, continuous usage on games or music varies differently. I should said, about 6 hrs plus of continously usage on WIFI & games.
Mine takes a long time to charge, nearly 7-8 hours from 0 to full! Don't know why it's so slow considering I am using the original power cable provided by Samsung!
By far the quickest method to charge the Tab is to first power it down so it is totally switched off.
Now plug in the cable and charge using the supplied power plug.
You will notice a marked difference in time taken to charge fully.
Pat123 said:
Mine takes a long time to charge, nearly 7-8 hours from 0 to full! Don't know why it's so slow considering I am using the original power cable provided by Samsung!
Click to expand...
Click to collapse
This is an important issue so shall we do a systematic comparison? First,we will charge the battery 100% then we will watch a movie at 100% brightness setting for exactly 1hour. Close the movie and check battery %, report here. Game?
According to my usage scheme (except calling), I manage to get 2 days on my GTab when my NS or MT4 needs to change battery once during a day.
Mine takes about 3 1/2 to 4 hours from about 20-30%. I did a lot of reading on lithium ion batteries and what I found is that the more you fully discharge and charge the worse the battery gets, which is the EXACT OPPOSITE of the old style nickel cad batteries.
In order to prolong the life of your SGT battery (which is crucial since we cant removie it) it is recomended that you top off your charge whenever you can. I work part time and am a full time college student so I always have about 4 hours every morning, wether its at work or at home. So once a day I charge my tab, its usually in the 20%-50% range when I charge it.
Just make sure that you do infact have the time to complete the full charge and remember that the last 10% will take the same amount of time as the first 40% due to the fact that li-ion's do the trickle charge at the end.
I charge it over night, every 2 days
For me the longer charge time usually is from 99% to fully charge. That can take up to an hr.
n2s2k2india said:
This is an important issue so shall we do a systematic comparison? First,we will charge the battery 100% then we will watch a movie at 100% brightness setting for exactly 1hour. Close the movie and check battery %, report here. Game?
Click to expand...
Click to collapse
Yep, sounds good! Also, let's keep the phone radios ON i.e. no airplane mode and the movie should be running from External SD card! Will try it out tonight with 3 Idiots movie which was bundled with my Tab
Pat123 said:
Yep, sounds good! Also, let's keep the phone radios ON i.e. no airplane mode and the movie should be running from External SD card! Will try it out tonight with 3 Idiots movie which was bundled with my Tab
Click to expand...
Click to collapse
I watched a full movie. There was a drop of 20%. Normal?
MasterRy88 said:
Mine takes about 3 1/2 to 4 hours from about 20-30%. I did a lot of reading on lithium ion batteries and what I found is that the more you fully discharge and charge the worse the battery gets, which is the EXACT OPPOSITE of the old style nickel cad batteries.
In order to prolong the life of your SGT battery (which is crucial since we cant removie it) it is recomended that you top off your charge whenever you can. I work part time and am a full time college student so I always have about 4 hours every morning, wether its at work or at home. So once a day I charge my tab, its usually in the 20%-50% range when I charge it.
Just make sure that you do infact have the time to complete the full charge and remember that the last 10% will take the same amount of time as the first 40% due to the fact that li-ion's do the trickle charge at the end.
Click to expand...
Click to collapse
Thanks for pointing out.I was following the old ni-cad battery method! So,basically you and Beards above are contradictory?
Differences between both types of batteries.
http://www.ehow.com/about_5449906_lithium-vs-nickel-cadmium-batteries.html
Basically, no harm discharging the batteries if constantly using. However, it is best to charge it before storage (probably for a period of time) and do a full charge when using.
3-4 hours charging time. one time i got it to last for 3 days (79 hours). i have a screencap but i need 3 more posts to put the links here. my normal usage is 2 days.
henrylam said:
Differences between both types of batteries.
http://www.ehow.com/about_5449906_lithium-vs-nickel-cadmium-batteries.html
Basically, no harm discharging the batteries if constantly using. However, it is best to charge it before storage (probably for a period of time) and do a full charge when using.
Click to expand...
Click to collapse
Lithium rechargeable battery dies totally (no longer accept charge) if it's left totally discharged for a few months. In addition, it's better to "condition" (totally let it runs out and charge it immediately till it full after about 1-2 months of use) to keep optimized performance.
n2s2k2india said:
Thanks for pointing out.I was following the old ni-cad battery method! So,basically you and Beards above are contradictory?
Click to expand...
Click to collapse
When I said "power it down" I did not mean to let the Tab run down until it powered off.
What I was saying is to get the quickest charge method it is best to 'switch off' the Tab ('power it down' & 'switch off' = same meaning).
The correct usage for the Tab's battery is when new to first fully charge and then discharge several times. Once you have done this the battery will be optimized.
From now on it is best to keep the battery 'semi-full' and not let it run down completely. I normally let mine run down to around 50% and then recharge to full.
However, after every 30 recharges it is a good idea to 'reprogram' the battery by clearing out any memory loss (I know, I know... they don't suffer memory loss). What you need to do is after every 30 recharges let the battery run completely down and I mean completely until it will switch itself off.
Now with the Tab switched off, recharge. Once the large green battery icon is full leave it in for a further 1hr then disconnect.
If you are not going to use the Tab for a long and lengthy period (heavens knows why though), to optimize the battery never stow away a battery which is in a Full Charge.
Batteries that are not going to be used for a lengthy period should only be charged to around 70% and then left in a cool and dry place.
That was very instructive ,infact I copy pasted it in Color Notes. So, basically, 30 recharges is like once a month, I can put a reminder in the Calender. Thanks and I also pressed the button.
n2s2k2india said:
That was very instructive ,infact I copy pasted it in Color Notes. So, basically, 30 recharges is like once a month, I can put a reminder in the Calender. Thanks and I also pressed the button.
Click to expand...
Click to collapse
No problem...
...... and thanks for the vote. All votes are gratefully received as they are converted into a charitable donation.
So I thought this was a fluke the first time then I was just able to reproduce the issue again. Once the battery level reaches 20%, the tablet will either shut itself down using the built in shutdown command or will just simply power off as if it doesn't have any power left at all.
I've charged it thoroughly and have even drained the battery down to 1% in the past but this keeps happening now. Any ideas?
Stock ROM/Rooted/TWRP
Tony_YYZ said:
So I thought this was a fluke the first time then I was just able to reproduce the issue again. Once the battery level reaches 20%, the tablet will either shut itself down using the built in shutdown command or will just simply power off as if it doesn't have any power left at all.
I've charged it thoroughly and have even drained the battery down to 1% in the past but this keeps happening now. Any ideas?
Stock ROM/Rooted/TWRP
Click to expand...
Click to collapse
this hasn't happend on my nexus yet but something similar happened to my LG Nitro HD. I basically rooted it and tried some battery calibrating apps on the Play store. In custom recoveries there's also this option to wipe batter status which i think might fix it but i've never tried it.
The battery gauge can be quite inaccurate. From what I have seen, I think Asus cut some corners in calibrating it for the specific battery chemistry - which makes things even worse.
Tony_YYZ said:
will just simply power off as if it doesn't have any power left at all.
Click to expand...
Click to collapse
It's not as if, there is no power left. The battery gauge simply had a wrong estimate of the remaining charge and suddenly the battery voltage collapses (happens very quickly towards the end of the discharge curve) and the N7 shuts down.
Messing with the battery stats doesn't do anything useful.
If you do a full charge / discharge cycle that may help a little with battery gauge accuracy. The battery gauge does some recalibration when doing that.
After a forced shutdown, fully charge and make sure the tablet sits around fully charged for at least 1h (e.g. just plugging it in over night will do fine). Then do a full discharge cycle with the N7 not plugged in at any time (normal usage will do just fine).
Those battery calibration apps don't anything useful, beyond getting you to run a full charge / discharge cycle.
Never happened on my Nexus 7, which have been taken down to 14% more than 10 times in the last 2 month. If what are suggested above don't work then use this tool to restore stock then Warranty return it or return it to store if you still have time,
Wonder if this is what happened to me last night. Was watching a video and it just shut off like the battery was dead. I wasn't paying attention to the battery but was almost positive it wasn't anywhere near zero yet. Never had the low battery pop up on me either. Hopefully it was a fluke...
there are many battery calibration issues/posts in old N7 forums. it also happened to me once in first couple weeks. what helped, I think, was shutting down the device completely with a little bit of battery left and just keep it unplugged for a few hours. Some say to preventively repeat this exercise every now and then..
Sent from my HTC One using Tapatalk
tni.andro said:
The battery gauge can be quite inaccurate. From what I have seen, I think Asus cut some corners in calibrating it for the specific battery chemistry - which makes things even worse.
It's not as if, there is no power left. The battery gauge simply had a wrong estimate of the remaining charge and suddenly the battery voltage collapses (happens very quickly towards the end of the discharge curve) and the N7 shuts down.
Messing with the battery stats doesn't do anything useful.
If you do a full charge / discharge cycle that may help a little with battery gauge accuracy. The battery gauge does some recalibration when doing that.
After a forced shutdown, fully charge and make sure the tablet sits around fully charged for at least 1h (e.g. just plugging it in over night will do fine). Then do a full discharge cycle with the N7 not plugged in at any time (normal usage will do just fine).
Those battery calibration apps don't anything useful, beyond getting you to run a full charge / discharge cycle.
Click to expand...
Click to collapse
NovaSense said:
Never happened on my Nexus 7, which have been taken down to 14% more than 10 times in the last 2 month. If what are suggested above don't work then use this tool to restore stock then Warranty return it or return it to store if you still have time,
Click to expand...
Click to collapse
Kohawk09 said:
Wonder if this is what happened to me last night. Was watching a video and it just shut off like the battery was dead. I wasn't paying attention to the battery but was almost positive it wasn't anywhere near zero yet. Never had the low battery pop up on me either. Hopefully it was a fluke...
Click to expand...
Click to collapse
millicent said:
there are many battery calibration issues/posts in old N7 forums. it also happened to me once in first couple weeks. what helped, I think, was shutting down the device completely with a little bit of battery left and just keep it unplugged for a few hours. Some say to preventively repeat this exercise every now and then..
Sent from my HTC One using Tapatalk
Click to expand...
Click to collapse
I had tried completely discharging it and then leaving it to charge overnight a handful of times without any luck. I ended up just restoring it to factory state and getting a replacement via Google Play Warranty Support. The new unit works just fine. It's an 07/2013 build unit just like the first one if anyone was interested.
by any chance do you use a qi wireless charger?
I have encountered a weird bug where if I charge my nexus 7 with a qi charger to 100% and leave it on the charger itll screw up the percentage/battery stats. with my situation, itll lock my battery % to 100% and wont go down until i go into twrp. If i just go into twrp and not recalibrate the battery stats, the percentage would be off and my nexus wont show the right %, so my nexus would shut off at random % instead of the normal 1% or 0.
millicent said:
there are many battery calibration issues/posts in old N7 forums. it also happened to me once in first couple weeks. what helped, I think, was shutting down the device completely with a little bit of battery left and just keep it unplugged for a few hours. Some say to preventively repeat this exercise every now and then..
Sent from my HTC One using Tapatalk
Click to expand...
Click to collapse
I can confirm this!
Did help on many devices for me with battery calibration erros...
Last one was a Galaxy S2 last weekend - turned of immediately, showed 0% upon start.
Took battery out for 4 hours, put it back in then and voila... 92% and everythings fine again.
junkinmytrunk426 said:
by any chance do you use a qi wireless charger?
I have encountered a weird bug where if I charge my nexus 7 with a qi charger to 100% and leave it on the charger itll screw up the percentage/battery stats. with my situation, itll lock my battery % to 100% and wont go down until i go into twrp. If i just go into twrp and not recalibrate the battery stats, the percentage would be off and my nexus wont show the right %, so my nexus would shut off at random % instead of the normal 1% or 0.
Click to expand...
Click to collapse
No, I do not have a QI charger. I was always using a USB wall charger.
anybody know when the time is best to recharge the phone battery?
because i heard that lithium battery should not empty before recharge... and if i empty battery (1%) , this damage the battery
persiansoftware said:
anybody know when the time is best to recharge the phone battery?
because i heard that lithium battery should not empty before recharge... and if i empty battery (1%) , this damage the battery
Click to expand...
Click to collapse
about 20% is the best time i read somewhere
jaythenut said:
about 20% is the best time i read somewhere
Click to expand...
Click to collapse
if i empty the battery, is damage my battery??
persiansoftware said:
if i empty the battery, is damage my battery??
Click to expand...
Click to collapse
If you do it to often it will shorten the battery life
wait till it asks You to charge , I guess that message is for this . Connect your charger ! under 15% Phone tells You itself
Sent from my SM-N9005 using XDA Premium 4 mobile app
persiansoftware said:
anybody know when the time is best to recharge the phone battery?
because i heard that lithium battery should not empty before recharge... and if i empty battery (1%) , this damage the battery
Click to expand...
Click to collapse
Above are all incorrect!
Charge at 50% and you can do it about 1500 times.
Charge at 20% and you can do it about 700 times.
Source: lots of places and lots of experience, but alse here for you to read: http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries (oh and "100% DoD" means fully drained battery!)
Peyman92 said:
wait till it asks You to charge , I guess that message is for this . Connect your charger ! under 15% Phone tells You itself
Click to expand...
Click to collapse
I hope you dont do that for all your phones as it will destroy your battery way sooner. Charge it when it reaches 50% and you can do 3 to 5 years with the battery at 24/7 use. (Instead of the 1 to 2 years when draining the battery).
Yes, it is recommended to charge the battery when it below 40% and disconnect the charger when it reach 99%. Do not overchange.
There was a big test I did read and the best was to keep it between 40 and 80 percent.
Sent from my SM-N9005 using xda app-developers app
charge it when it prompts you to charge. at 19% you start getting the first recommendation in lockscreen, then at 15% you even get an annoying prompt.
Sent from my SM-N9005 using xda app-developers app
Are you guys seriously sitting and watching until the battery goes down to certain percentage? And for what? Battery is easy to replace and not that expensive, it has a circuit to protect it from over and under charging, to avoid the damage and you get many more shallow charge/discharge cycles than deep ones as already mentioned. I charge my phone daily in the evening at my convenience, usually before I go sleep regardless of what's left (unless I use it so much it can't last until evening), so by the time I go sleep it's 100% and by morning it will be around 97% and normally last me whole day. I've been doing this for yrs and for example my 4yr old Nokia I gave to my friend, still lasts him couple days of light use on original battery. I wouldn't worry about it at all. Every few months you may want to fully discharge it to lets say 3-5% to have the meter calibrated and maybe clean the contacts with alcohol every six months or so, but that's all the maintenance my battery will get or need. If it fails before the phone, it probably had some factory defect or something, but no big deal as long as there is replacement easy to buy and with so many millions of notes sold, there should be.
pete4k said:
Are you guys seriously sitting and watching until the battery goes down to certain percentage? And for what? Battery is easy to replace and not that expensive, it has a circuit to protect it from over and under charging, to avoid the damage and you get many more shallow charge/discharge cycles than deep ones as already mentioned. I charge my phone daily in the evening at my convenience, usually before I go sleep regardless of what's left (unless I use it so much it can't last until evening), so by the time I go sleep it's 100% and by morning it will be around 97% and normally last me whole day. I've been doing this for yrs and for example my 4yr old Nokia I gave to my friend, still lasts him couple days of light use on original battery. I wouldn't worry about it at all. Every few months you may want to fully discharge it to lets say 3-5% to have the meter calibrated and maybe clean the contacts with alcohol every six months or so, but that's all the maintenance my battery will get or need. If it fails before the phone, it probably had some factory defect or something, but no big deal as long as there is replacement easy to buy and with so many millions of notes sold, there should be.
Click to expand...
Click to collapse
Couldn't agree more, I charge mine on a evening regardless and phone gets me easily through a day. If I notice a massive drop in the battery not holding a charge then I will buy a new one. More important things to worry about in life than watching my percentage for the battery.
Sent from my SM-N9005 using XDA Premium 4 mobile app
HanZie82 said:
Above are all incorrect!
Charge at 50% and you can do it about 1500 times.
Charge at 20% and you can do it about 700 times.
...
Click to expand...
Click to collapse
That is good as a principle but the numbers are still rather big and depend even more on the charging current - if you charge (even) from 50% with 2000 mAh it will never last 1500 recharges - that is why Samsung has slightly improved the Note 3 recharging algorithm so as to use (variable) lower currents (even if the charger is 2000 mAh), and also why it is still far, far better to recharge from a very good USB at under 500 mAh (actually 450) - and indeed preferably from over 40%.
xclub_101 said:
That is good as a principle but the numbers are still rather big and depend even more on the charging current - if you charge (even) from 50% with 2000 mAh it will never last 1500 recharges - that is why Samsung has slightly improved the Note 3 recharging algorithm so as to use (variable) lower currents (even if the charger is 2000 mAh), and also why it is still far, far better to recharge from a very good USB at under 500 mAh (actually 450) - and indeed preferably from over 40%.
Click to expand...
Click to collapse
As long as the charging current is lower then 1C (1 full charge for the note3 its 3200mAh) its not a problem and wont shorten lifetime.
But yeah charging at lower currents is better, but more due to less heat and induction.
Anyway its just sad that other people with little to no knowledge about lithium batterys are giving advice, and WRONG advice at that.
Just read the link i posted in previous post (page1) there are the facts. Dont believe just anybody, people are stupid. (yeah im people too )
The chemical reaction will be less when battery is drained and is hard to recover.
But if the battery seems dead, put it in the freezer for 2 or 3 hours and it will be recoverable.
Theres more to these batterys than people think.
Hello there I got a new battery.
What should I do with it?
Should I completely charge it and discharge it for a few times?
Or what??
Really need some advice.
Thanks in advance. :laugh:
Just use it. No special treatment is required.
Or maybe a simple Google search...
Sent from my N9005
Lithium Ion batteries don't build up a memory. You don't need to cycle it.
In fact, running it through several drain cycles will degrade the battery life in the long run, not improve it. They only last around 300 cycles.
So can I use it until around 20% and charge it back to 100?
or charging to 100 is not good for the battery?
(I will unplug it once it turn green)
Destim said:
So can I use it until around 20% and charge it back to 100?
or charging to 100 is not good for the battery?
(I will unplug it once it turn green)
Click to expand...
Click to collapse
It is recommended to fully charge it overnight for the first 3 times.
After that, overcharge and discharge below 10% is not recommended.
Destim said:
So can I use it until around 20% and charge it back to 100?
or charging to 100 is not good for the battery?
(I will unplug it once it turn green)
Click to expand...
Click to collapse
Ideally, it will last longest (in total charges, not single charge) if you keep it between 90 and 30.
However, charging to 100% isn't really a problem, so long as you don't leave it connected to the charger after it's hit 100% for extended periods of time. Draining it fully is bad, however. In reality 20-100 is most do-able whilst keeping the battery healthy the longest.
The manual advises to charge it for I think it was 12 hours on the first use, though I've never found there to be an advantage to that, as it charges from 0 to 100 in 90 minutes. So 2-3 hours should be sufficient as well.
Just got my OP5 in hand, how long does it need to charge the phone for the very 1st time? As Dash charge can charge the phone to 100% in 30min, do I still need to keep the phone on charge for an extended period of time like b4? Cheers
Hi,
Dash charge can not charge the phone to 100% in 30min
In 30 min you can charge between 40% and 60% depending on what is running on your phone :
http://www.phonearena.com/news/OneP...and-the-Google-Pixel-still-crazy-fast_id95170
Thx. Havent tried it. So for the very first time, for previous phones I let it charge for a few hours b4 actually used them. I should do the same right? As the battery is with the same structure. Cheers
lou2s said:
Just got my OP5 in hand, how long does it need to charge the phone for the very 1st time? As Dash charge can charge the phone to 100% in 30min, do I still need to keep the phone on charge for an extended period of time like b4? Cheers
Click to expand...
Click to collapse
I set mine up then put it on charge, was on 44% and then was at 96 about 35 minutes later
lou2s said:
Thx. Havent tried it. So for the very first time, for previous phones I let it charge for a few hours b4 actually used them. I should do the same right? As the battery is with the same structure. Cheers
Click to expand...
Click to collapse
Hey,
I don't know definitively but I don't think so. I think battery technology in this respect has moved a long way so you don't have to charge it to full before you first use it, nevermind charging it to full and then over charging for multiple hours.
In fact, phones these days cut off charging and then trickle charge when the battery is full to maintain charge but not try and charge an already full battery thus causing damage.
Bottom line is I would suggest you wait till it gets to 100% before using it but don't need to wait any longer after that.
Sent from my HTC 10 using XDA Labs
lou2s said:
Just got my OP5 in hand, how long does it need to charge the phone for the very 1st time? As Dash charge can charge the phone to 100% in 30min, do I still need to keep the phone on charge for an extended period of time like b4? Cheers
Click to expand...
Click to collapse
With modern Lithium ION/POL batteries this is no longer a requirement. In fact the hardware will make it stop from overcharging or it could become a hazard. In fact, Li-ION batteries are best kept between 20% and 80% for longevity. if you plan to store Lithium batteries store them at around 50% charge. so your old phone keep it stored at around 50%. this is also how all laptops and phones are shipped these days. They are shipped with approximately 50% battery charge for any hazard and also for longevity should it have to be stored for a long period of time.