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hello
just recieved my HD2 and I've drained my battery to 0%. now I was wondering how long will it take to 100% charge again.. 3 hours? 8 hours?
deiota
ps. Ive done my first 12hours charge already
With the original charger, about 2hrs if you don't use it at the same time.
yes Im using the orginal charger and the hd2 IS power off.
the stuff about charging for hours when you get it and then draining it right down no longer really applies too our batteries.that was for nickle batteries to initialise them and prevent the memory thing. with lithium ion they no longer suffer from battery memory.
ýeah it took about 2 h
2 and half ours starting from zero charge
I never did anything with the battery when i got mine!! Was way to eager to play! Never had any Battery issues.....
I did loosely time it once as i wanted to know what difference a quick charge would make and it seemed like it went up a percent approx every 3 mins... trouble is that doesn't quite equate... it would mean that from 0 - 100% would take 300mins (5hours)! but in reality it probably takes between 2-3hours..
I guess either the battery doesn't charge linearly or the percent display is inaccurate...
I Did a full charge at lunch time since it took me 1day and half till battery to drain completely,
I wonder if I should put it on charger all night long (its 10pm now and I have 80%) or should I let it out of charger...
If your battery needs charge, then charge it. There is NO NEED to completely discharge it and then charge it for sveral hours. In fact, modern li-ion batteries will take damage if _completely_ discharged!
The thing about completely discharging and charging for days is long gone! Batterys have evolved, we dont live in the 1990's anymore
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!
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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?
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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
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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.
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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.
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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?
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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.
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No problem...
...... and thanks for the vote. All votes are gratefully received as they are converted into a charitable donation.
I have had it plugged into the mains, running tunein radio through wifi and its gone from 85% to 86% in one hour.
If I charge from 10% with phone off it takes about 4 hours to fully charge
If I charge from 10% with my phone on running stuff, it actually never gets to fully charges by the time I finish work...at 6pm
Sorry to keep comparing to the dreaded FruitPhone, but that would charge whilst running wifi and tunein from 10% to 100% in about 2 hours.
I am beginning to think my SGS2 is faulty
i am fiding it takes about 3 hours to charge from empty . It does take a long time indeed but i guess it is what we have to do for a 1650mah battery
3 hours from empty with stock charger .
jje
it might well be a 1650 battery, but it starts to get unusable when it takes all day to charge then a few hours to loose it all.
This phone is the greatest but the battery life just completely destroys it, I am beginning to think I made the wrong choice
JJEgan said:
3 hours from empty with stock charger .
jje
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Is that while using it?
you are not supposed to use the phone when its charging its really bad for the battery it gets very warm during charging as it is...
virussnake said:
you are not supposed to use the phone when its charging its really bad for the battery it gets very warm during charging as it is...
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Aye... if I don't the bloomin thing would be dead by lunchtime, and I listen to music.
So I basically have to turn it off not use it so I can charge it, how crap is that, owned my iphone a year never had any problems with battery and I always used and charged in its dock.
The desire had slow charging too but snq- fixed this in his kernels maybe we can port his fix to our kernels
btw it's true li-ion batteries degrade quicky when the heat up (or completely charge or discharge)
From 30% it took me one hour and a half to fully charge..
I recommend to download battery mix as it takes very good statistic on the battery life and one can tell exactly how long it takes to charge and discharge
Sent from my GT-I9100 using XDA App
just for the record all Lion batteries in phones never fully discharge or recharge, as there balanced by a balancing chip.
when you get to the likes of 0% you actually have 20% charge, thats why you can power on the phone but it will immediately switch off again. like wise, charging you never reach 100%, it's more like 89%, again because of how Lion works.
if you fully discharged and fully recharged, well put it simply you'd have a lot of exploding phones, fire and chemical burns...
Interesting!
My phone charges in about 2,5 - 3 hours, so should be normal...
But charging with the usb cable connected to the pc it takes much longer.
Any of you experience the same thing?
greets!
THUDUK said:
I have had it plugged into the mains, running tunein radio through wifi and its gone from 85% to 86% in one hour.
If I charge from 10% with phone off it takes about 4 hours to fully charge
If I charge from 10% with my phone on running stuff, it actually never gets to fully charges by the time I finish work...at 6pm
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Because:
a) That´s how Li-Ion-batteries are charged. To fully charge a Li-Ion-battery you need 3-4h.
b) The power-supply is pretty weak. It is just enough to charge the phone at decent speed, but it is not enough to charge it and intensely use it the same time. In this case much of the power is used by the phone and there is not enough left to do a proper charging. I use a 1,2A power-supply from my old Nokia, and while it won´t speed up charging itself, at least it slows down less when I´m using the phone while charging.
Sorry to keep comparing to the dreaded FruitPhone, but that would charge whilst running wifi and tunein from 10% to 100% in about 2 hours.
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This is not possible. The mighty fruity-phone may tell you it is 100% charged, but certainly it isn´t
You can charge a Li-Ion-battery very fast from 0 to 70-85% you could reach this in 1h. But you have to charge the remaining 15-30% very slowly, otherwise the voltage would raise too much and destroy your battery.
The so called saturation-stage (the charging-stage until 100%) takes longer the faster you charged at the beginning. If you really charged until the saturation-stage in 1h, the saturation-stage will take 2-3h.
If you charge slower, so you reach saturation-stage after 2h, the saturation-stage will only take 1-2h anymore.
In the end it will always take 3-4h to fully charge a Li-Ion-cell, regardless how strong your power-supply is.
Another few notes:
Charging will get slower the fuller the battery already is.
Using the phone with low battery-percentage will lengthen the charging-time quite a bit, a stronger power-supply could help.
Getting the last 20% in a Li-Ion-cell will always be very slow, usage of the phone won´t influence this a lot, and a stronger power-supply can´t help.
It doesn´t matter much, how much charge is left in the battery, to fully charge it it will always take long, as you spend most of the time in the saturation-stage (the higher the left percentage is, the more time you spent in saturation-stage)
I am beginning to think my SGS2 is faulty
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It is not faulty, it is designed this way.
It took 3 hours 10 minutes to fully charge my dog and bone yesterday whilst off
Thanks for the explanation!
jonny68 said:
It took 3 hours 10 minutes to fully charge my dog and bone yesterday whilst off
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Your having a bubble bath ain't you mate
Your battery sounds faulty to me, taking over 4 hours and only charging 1 percent in an hour. Try the battery calibration app in the market, if it doesn't improve get it swapped mate
[email protected]
Sent from my Samsung Galactic Crusader S II
The wifi is the killer, try turning it off when charging your phone..
Sent from my GT-I9100 using XDA App
it takes so long to charge because samsung capped the charge current at 650 mA in the battery driver. but other phones like HTC allow charging at the full 1 amp. so that's why its a slow charge, and why its possible to drain the battery even while plugged in to the charger.
Now who wants to ask kernel developers to increase that to .850 or 1 amp and use that lol.
I believe lack of heatsink due to design is the culprit behind decision to cap it at .650.
Sent from my GT-I9100
3 hrs to fully charge, and as i use tunein radio a lot i can tell you on my device with the screen off, wifi on with tunein running, it still seems to take no more than 3 hours maybe 15 mins more at most
I am probably going to order a cheap eBay Li-Ion battery that's 1800mAH and likely has a charge cap closer to 1000mAH. I will know in a week when I finally get my phone and report back if that battery helps. I expect it to heat up while charging and am going to use an external charger.
Two replacement batteries and an external charger go for about $12 USD on eBay btw.
Do you let your battery drop down to 5% before connecting the charger? Or do you charge every moment you get the chance to keep battery at max?
Sent from my SM-G935F using Tapatalk
Battery łasts a long time as it usually goes off the charger at 7 a.m. I charge it while sleeping. Occasionally out of habit I will charge it while I'm driving in the car but for about 15 minutes. Otherwise, I am very happy with the battery.
Sent from my SM-G935V using Tapatalk
markwebb said:
Battery my a long time as it usually goes off the charger at 7 a.m. I charge it while sleeping. Occasionally out of habit I will charge it while I'm driving in the car but for about 15 minutes. Otherwise, I am very happy with the battery.
Sent from my SM-G935V using Tapatalk
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I'm not an expert, but all I've heard is charging over night or after it hits 100% is bad. Why I don't know, but I try to charge my phone when it reaches everywhere from 15-30 to 95-100 then remove the charger.
Sent from my SM-G935F using Tapatalk
I'm not constantly on my phone, so usually charge it up to 80% and recharge when it drops to 40%. I only charge it to 100% when I am out and about for the whole day. See the following link for charging advice:
http://www.pcadvisor.co.uk/how-to/mobile-phone/how-charge-phones-battery-3619623/
Namyep said:
I'm not an expert, but all I've heard is charging over night or after it hits 100% is bad. Why I don't know, but I try to charge my phone when it reaches everywhere from 15-30 to 95-100 then remove the charger.
Sent from my SM-G935F using Tapatalk
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Click to collapse
Overcharging won't happen on a advanced device like the S7.
Sent from my SM-G935F using Tapatalk
Namyep said:
I'm not an expert, but all I've heard is charging over night or after it hits 100% is bad. Why I don't know, but I try to charge my phone when it reaches everywhere from 15-30 to 95-100 then remove the charger.
Sent from my SM-G935F using Tapatalk
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Click to collapse
Nah, that's old news. Modern chargers and devices know when they've hit 100%, so they stop charging at that point and lets the battery dip down to 98-99% before trickle charging up to 100 again, and so on until you unplug. It's completely safe, and you shouldn't trust all those garbage click-bait articles out there. Do not, however, go down to 0% before you recharge it. That can actually damage the cells in your battery, so plug it into the charger before that. If you notice some funky behavior from the battery, like if it's jumping from 30% to 20% in five minutes, or is stuck at 10% for an hour, then it's a good idea to completely drain it to 0% to calibrate the battery since the OS has no idea how much battery is left (so it knows where 0 is again). This will usually happen after flashing a different ROM. Charge it up to 100 again and it should be back to normal.
I personally charge it normally at night, without quick charge, since there's no point in having it quick charge while I'm a sleep for around 8 hours. I'll only quick charge it in the middle of the day, which is almost never, since the battery is freakin' awesome.
Don't worry about the battery too much, but don't reach 0% too often, and you'll be good. By too often, I mean every 3-4 months or so is OK. I base these things from my Sony device which I've had for almost 3 years. The (sealed in) battery was very good out-of-the-box, and it's still very good after nearly three years, so I won't mess with a proven success.
To be safe on the longevity of the battery I use one of these with my wireless charger :
http://www.amazon.com/gp/aw/d/B003P...mer+outlet&dpPl=1&dpID=31OAEbif0lL&ref=plSrch
My battery is usually around 30-40% at the end of the day. I use the regular speed Samsung Charging Pad and set the timer on this outlet for 3 hours when I go to bed. So after 3 hours it stops charging and I don't have to worry about the possibility of damaging the battery (I know about trickle charging, but I think this is better)
Ive read somewhere that the new s7 edge charger doesnt have a power inverter so it keeps charging and wasting power which could damage the charger or possibly device. So know if thats correct.
eric150 said:
To be safe on the longevity of the battery I use one of these with my wireless charger :
http://www.amazon.com/gp/aw/d/B003P...mer+outlet&dpPl=1&dpID=31OAEbif0lL&ref=plSrch
My battery is usually around 30-40% at the end of the day. I use the regular speed Samsung Charging Pad and set the timer on this outlet for 3 hours when I go to bed. So after 3 hours it stops charging and I don't have to worry about the possibility of damaging the battery (I know about trickle charging, but I think this is better)
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Click to collapse
I just purchased one of those...thanks for the advice. I charge my device when get around 20%-30% of battery and left charging over night ( when sleeping) on my standard Samsung wireless charging. My battery is just ok.. I'm not so heavy user and sometimes I have to charge around 8pm or so. I take off from the charger at 100% all morning around 8am.
Sent from my Galaxy S7 edge
At home. I do wireless when ever i can. If im not using the phone then i sit it on a wireless charger.
Battery hasnt drop pass 30% in the week i had the phone.
My note edge would drop pretty low because i didnt use wireless charging. So my phone would just sit in my pocket slowly draining.
ssgunner20 said:
Ive read somewhere that the new s7 edge charger doesnt have a power inverter so it keeps charging and wasting power which could damage the charger or possibly device. So know if thats correct.
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Click to collapse
Whatever you read, either you misunderstood, or the person that typed it was a bumbling idiot. A power inverter converts DC power to AC. Your source/utility power is already AC. A USB charger is merely an AC adapter made for USB. The phone has integrated circuitry that controls when and when not to charge the battery and at what amperage.
I usually let mine get to around 5% everytime. Then charge it back fully to 100%.
J.Biden said:
Nah, that's old news. Modern chargers and devices know when they've hit 100%, so they stop charging at that point and lets the battery dip down to 98-99% before trickle charging up to 100 again, and so on until you unplug. It's completely safe, and you shouldn't trust all those garbage click-bait articles out there. Do not, however, go down to 0% before you recharge it. That can actually damage the cells in your battery, so plug it into the charger before that. If you notice some funky behavior from the battery, like if it's jumping from 30% to 20% in five minutes, or is stuck at 10% for an hour, then it's a good idea to completely drain it to 0% to calibrate the battery since the OS has no idea how much battery is left (so it knows where 0 is again). This will usually happen after flashing a different ROM. Charge it up to 100 again and it should be back to normal.
I personally charge it normally at night, without quick charge, since there's no point in having it quick charge while I'm a sleep for around 8 hours. I'll only quick charge it in the middle of the day, which is almost never, since the battery is freakin' awesome.
Don't worry about the battery too much, but don't reach 0% too often, and you'll be good. By too often, I mean every 3-4 months or so is OK. I base these things from my Sony device which I've had for almost 3 years. The (sealed in) battery was very good out-of-the-box, and it's still very good after nearly three years, so I won't mess with a proven success.
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Click to collapse
Thanks for the details information. I figured the technology is so advanced with batteries that overcharging is in the past.
t12icky0 said:
I usually let mine get to around 5% everytime. Then charge it back fully to 100%.
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Click to collapse
+1 :good:
J.Biden said:
Nah, that's old news. Modern chargers and devices know when they've hit 100%, so they stop charging at that point and lets the battery dip down to 98-99% before trickle charging up to 100 again, and so on until you unplug. It's completely safe, and you shouldn't trust all those garbage click-bait articles out there. Do not, however, go down to 0% before you recharge it. That can actually damage the cells in your battery, so plug it into the charger before that. If you notice some funky behavior from the battery, like if it's jumping from 30% to 20% in five minutes, or is stuck at 10% for an hour, then it's a good idea to completely drain it to 0% to calibrate the battery since the OS has no idea how much battery is left (so it knows where 0 is again). This will usually happen after flashing a different ROM. Charge it up to 100 again and it should be back to normal.
I personally charge it normally at night, without quick charge, since there's no point in having it quick charge while I'm a sleep for around 8 hours. I'll only quick charge it in the middle of the day, which is almost never, since the battery is freakin' awesome.
Don't worry about the battery too much, but don't reach 0% too often, and you'll be good. By too often, I mean every 3-4 months or so is OK. I base these things from my Sony device which I've had for almost 3 years. The (sealed in) battery was very good out-of-the-box, and it's still very good after nearly three years, so I won't mess with a proven success.
Click to expand...
Click to collapse
I reach 5% max, is it a problem for the battery's life?
turtuv said:
+1 :good:
I reach 5% max, is it a problem for the battery's life?
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Click to collapse
Not at all, but just try to not discharge the battery completely to the point where it turns itself off. It won't ruin the battery to the point where you actually notice it there, but it's better if you just turn the phone off if you're able to (unless it's an emergency, of course).
J.Biden said:
Not at all, but just try to not discharge the battery completely to the point where it turns itself off. It won't ruin the battery to the point where you actually notice it there, but it's better if you just turn the phone off if you're able to (unless it's an emergency, of course).
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Click to collapse
I never discharge the battery completely, like I said I use until battery is max at 5% [emoji3]
Sended from my Samsung Galaxy S7 Edge Gold Platinum
I charge it when it hits 20%. But i dont use the fast charging unless i need a quick top up
Does it hurt the battery to charge the phone with a different charger ?
Sent from my SM-G935F using Tapatalk
I never used the fast charging, I think that slowly charging a battery is better for the lifetime. Most of the time it is below 10 % before I plug it in and I also want it to be at 100% and ready (green LED) when I unplug it.
my note 3 battery is still superb and I got the phone since 2013
Best way to keep a battery in good health is to charge it to full before you start using it. Also, try and never charge it until it's less than 50%. Charging it overnight is perfectly fine it won't hurt anything but once ina while, at least say once a month let the battery drain all the way, try to turn it back on if it goes off sometimes there is still some juice left and it might start up, once it won't start anymore try and charge it without turning it on to full. I wouldn't do it more than say a couple times a month any more than that is overkill and may do more harm than good. These are the guidelines I use and I have never had battery issues. I currently am waiting for my S7 Edge and on my Nexus 6 I usually get 48+ hours with 4+ hours SoT. I'm just an average user currently.
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
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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
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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.