It takes all night just to charge this thing, when iplugged it in the wall with the USB cable it came with it takes like 2 hours and it only went up like 15-20% and my Acer iconia charges fully in an 1hr and a half, any way to make it charge faster?
Pretty much all night. Mine takes about 6 hours to reach 80%, then it gets stuck there from 1-3 hours, then it goes to 100% in another 1-2 hours. It is a big battery, but not any bigger than laptop batteries!
azoller1 said:
It takes all night just to charge this thing, when iplugged it in the wall with the USB cable it came with it takes like 2 hours and it only went up like 15-20% and my Acer iconia charges fully in an 1hr and a half, any way to make it charge faster?
Click to expand...
Click to collapse
Samsung is known for being a bit on the conservative side with battery charging. Original GalaxyS phones had a current limit of 600 mA. GSII phones have a limit of 650.
In addition, all CPU/screen power usage counts against this limit - so if you've got 200 mA of screen/CPU power usage, that's only 400 into a 2500 mAh battery on the 5.0.
It looks like they planned for a limit of 700 mA on the 5.0, but at some point dropped it to 600 for some reason. (There's comments in the kernel code indicating that it changed...)
Good news is that it can be changed in the kernel to charge at up to 800 mA. I'll be working on this on the US 5.0 in a week or two.
Related
New to the TB - I have a question about the battery. No it's not about how fast it drains. My concern is charging time. My previous phone was an iPhone 3g. It would charge in about three hours. 1 hour would net you about 50% charge.
My TB seems to take FOREVER to charge. As of writing this post - it has taken one hour to charge from 55% to 65%. This is with the screen, data, gps, wireless and bluetooth off. the only thing on is the voice portion. Anything more would be airplane mode.
At this rate it would take 10 hours to charge this phone. On the iPhone, you would get 10 hours usage and 3 hours charge. On the TB you get about 3 hours usage and ten hour charge time.
Does this seem right?
That's not right if you're using the AC charger which came with it. Are you?
If you're charging over USB, it's going to take a long time. Charges via the A/C Adapter usually take about 3 hours, same as your I-phone. The first charge I recommend leaving it on for 4-5 hours to make sure battery is fully charged.
BTW, there's really no reason to turn off all of the features just to charge your phone. I leave all of those features on and still charge in < 3 hours.
well I have been charging by pc usb port on both mac and pc.
Tonight I plugged into ac adapter. It took 1 hour to go from 85% to 99%. 50% faster, but still excessive. It's a ~6 hour charge time instead of 10 hours.
I would love a 3 hour charge time.
Custom kernel that is under volted should help
^_^_^'s tbolt
gcodori said:
well I have been charging by pc usb port on both mac and pc.
Tonight I plugged into ac adapter. It took 1 hour to go from 85% to 99%. 50% faster, but still excessive. It's a ~6 hour charge time instead of 10 hours.
I would love a 3 hour charge time.
Click to expand...
Click to collapse
going from 0 to 75 % will be faster than 75 to 100.. charging isnt a linear thing. as you reach the the end of the charging cycle you are trying to move charge across the battery with a 5V potential but fighting the potential now built into the battery...
gcodori said:
well I have been charging by pc usb port on both mac and pc.
Tonight I plugged into ac adapter. It took 1 hour to go from 85% to 99%. 50% faster, but still excessive. It's a ~6 hour charge time instead of 10 hours.
I would love a 3 hour charge time.
Click to expand...
Click to collapse
Depending on the level you start at, somewhere around 85% is where charging changes over from constant current to constant voltage. If you charge with the AC adapter, you'll find it takes ~2 hours to go from 0 to 85, and another hour to go from 85 to 100.
Get Battery Monitor Widget by 3c06 from the Market to see this graphically.
Guys my SGS2 is taking around 4+ hrs to charge from around 5% left. Is this normal.?
Yep takes 4 hours here too
Sent from my GT-I9100 using Tapatalk
What's the rated output on the wall charger?
I think this is by design as the phone already gets extremely hot when pushing the CPU (gaming etc).
I believe this can eventually be changed with custom rom/kernel.
hycian said:
What's the rated output on the wall charger?
Click to expand...
Click to collapse
5v @ 0.7A, by the looks of it this is normal.
thanks for responce peps. Never had a phone that took so long to charge.! Normally about an hour which is why i thought i may have had a problem with the handset.!
S2 stock Optus KE2 with it remained turned on with wifi, email checking etc using Energizer XP8000 battery as power source for charge went from 24% reminaing to 100% charged in ~2hrs. S2 internally seems to limit it to <700mah charge rate.
Find a Iphone4 charger or something similar it will give you 5v @ 1.0A, charges quite a bit faster, I use that at work then the slow .7 at home.
my XP8000 charges at 1000mah but S2 will limit it to 700mah
I think you could charge the battery alone in a dock. There it should load with the full 5V and 1ah..
Sent from my GT-I9100 using XDA App
Ah forgot about that. But it's kind of pain removing that battery cover.
connectandroid said:
my XP8000 charges at 1000mah but S2 will limit it to 700mah
Click to expand...
Click to collapse
Anywhere you can back this up? I seem to have faster results using a 1.0 vs .7, showing that it is getting more power.
It's been mentioned a few times across various forums. But i'm just going by my experience.
It also takes me around 4 hours to fully charge from below 5% battery. However, if I turn the phone off whilst it charges, goes slightly quicker. Obviously.
Hi,
I think the recharging time is quiet normal for such a phone (and battery).
I had to charge the battery of a friend's phone these days with my notebook.
And it took some hours from 30%. (HTC DHD)
About the same for my SGSII.
I think thats normal.
what would we do without electricity?
Dead phone that is fully discharged battery phone off stock charger to 100%
sub 3 hours .
jje
Changed handset yesterday. today charged new phone from 5% and it took 3hrs 4mins. So it looks like i may have had either a dodgy charger or batt.
I am charging with supplied charger(5V / 0.7A) ...
During the charging I turn off my phone but the charging time is still 3-4h -.-
Mine has been taking forever lately, just took over 5 hrs to gov from 25 to 100%...WTF! My Hero with the 1500mah battery would charge from 10% to 100% in 1.75-2 hours this thing has a roughly 17% bigger battery but takes 3 times as long now to charge, it didn't at first when i got it but it is now no matter which of my 3 HTC wall chargers or my car charger I use. I don't know if the battery is going bad or what. Is there an app for displaying charging amps...I thought I read that there was but i can't find one?
stealth919 said:
Mine has been taking forever lately, just took over 5 hrs to gov from 25 to 100%...WTF! My Hero with the 1500mah battery would charge from 10% to 100% in 1.75-2 hours this thing has a roughly 17% bigger battery but takes 3 times as long now to charge, it didn't at first when i got it but it is now no matter which of my 3 HTC wall chargers or my car charger I use. I don't know if the battery is going bad or what. Is there an app for displaying charging amps...I thought I read that there was but i can't find one?
Click to expand...
Click to collapse
I use Current widget (free in market).
Cool Thanks, wonder if that shows amps comming in to phone or just +amps over what the phone is useing...by the fluctuations I would say the latter. Works though.
That Current Widget worked great, when unplugged it shows draw and when plugged in it shows gain rate. Note for everybody, just because it sais its a High Speed 2.0 cable doesn't mean it meets the amp draw requirements. 2 of my skinny cable are only capable of transfering 500mah when the HTC cable and 1 of my thick ones transfer a full amp of juice. Good to know all my chargers work just have to get a thick-high quality 6ft cable now.
I know it sounds weird but it's hard for me to ignore the fact that whenever I charge my phone early in the morning, battery temp - 26C usually, around 4 AM it charges like all hells gone lose. From 20 to 100 in somewhat an hour or more.
Note, my phone is a standard non fast charging/dash charging phone which Ampere reports the maximum current the chip let's into the battery is 820 mA.
If I charge the same phone after some usage when the battery is at 37-40 C it takes around 2-3 hours to charge from 20 to 100.
Does any one here had a similar experience?
Off-topic: Why do phone companies don't make water cooled phones or phone covers?
How many of yall use the fast charger overnight? I do have a BlackBerry charger (850mA) which takes like 4.5hours to fully charge, so I use that to charge overnight.
Is it okay to use the fast charger for overnight charging?
I do. I have the phone for a short time (2-3 weeks) But no problems yet.
i charge in the morning for 30min -1h or in the evening to 90%+. i always charge to around 90% for batteryinfo to reset.
While the poco is charging the phone says its better to charge often short instead of overcharging the battery.
To your question, it should be alright to charge overnight. Just make sure it has good ventilation (not on your bed or under things.
If you want to preserve battery life cycle, then no. The closer to 100% you get, the worse it is for battery.
I prefer charging at night and in the morning if it's below 70%.
Otherwise, I will charge in the morning before work, and in the afternoon.
I only charge to 80% where possible
I had a bad experience with LG flex 2, I always used fast charger to charge overnight and with 2 years I got 2 dead batteries. Now I use Battery Charge Limit app and slow charger overnight. It stops charge at certain level like 75%. And that lasts for a full day for me.
asanidar said:
To your question, it should be alright to charge overnight. Just make sure it has good ventilation (not on your bed or under things.
If you want to preserve battery life cycle, then no. The closer to 100% you get, the worse it is for battery.
I prefer charging at night and in the morning if it's below 70%.
Otherwise, I will charge in the morning before work, and in the afternoon.
I only charge to 80% where possible
Click to expand...
Click to collapse
I used to do this. But I've noticed that on days I don't fully charge the device, I have to plug in again mid day / evening, ending up using more than 1 battery cycle. If charged to a 100% at the end of the day it'll still have 20-30% left
ergo911 said:
I had a bad experience with LG flex 2, I always used fast charger to charge overnight and with 2 years I got 2 dead batteries. Now I use Battery Charge Limit app and slow charger overnight. It stops charge at certain level like 75%. And that lasts for a full day for me.
Click to expand...
Click to collapse
This could be the result of a few factors.
Does the phone automatically cut off power when fully charged. Most new phones do cut off power or at least slow down the charge rate. If it does not, overcharging is one of the worst enemy of battery longevity/lifespan.
After power cut off, does it resume after the power gets below a certain level, or does it charge at a slower rate. Charging at a slower rate helps but it is still overcharging, so the slower the better.
As I mentioned previously, battery temperature. Fast/quick charging doesn't actually affect battery longevity/lifespan as long as the heat is controlled properly. A phone charging at 50 degrees Celsius at 5 watt (5 volt, 1 ampere) will be dead (unusable) faster than a phone charging at 35 degrees Celsius at 18 watt (9 volt, 2 ampere).
the_radeon said:
I used to do this. But I've noticed that on days I don't fully charge the device, I have to plug in again mid day / evening, ending up using more than 1 battery cycle. If charged to a 100% at the end of the day it'll still have 20-30% left
Click to expand...
Click to collapse
If by battery cycle, you mean how many times it is charged, then true.
In terms of battery longevity/lifespan, then it's not very good.
Useful info:
https://www.androidauthority.com/maximize-battery-life-882395/
https://batteryuniversity.com/index.php/learn/article/how_to_prolong_lithium_based_batteries