I may be wrong, but it seems to me that battery goes down qute fast in opened state (when display turned up as normal pda)...
THX
well, yes, the backlight chews battery, just like on a laptop. Turn down the brighness a bit (i use on the 2nd notch) and you will get more battery life.
Also, you do not have to have it "on" all the time to receive calls etc. as it will bring itself out of standby when a call cfomes in.
Remeber, PDAs do not have a massive batterry life, and with "normal" use, you ca expect the exec to be at around 50% battery after a days "average" use (a couple of hrs wed surfing, 30 mins calls phone on all day)
Hei all of you
It seems that the legend has been released to some people, and i was wondering what you guys get out of the battery.
I am currently on a Diamond 2, with 1100 Mha battery, and currently get 1½ day out of this, and i want this to be an improvement. The legend, with 1300Mha, OLED screen and newer cpu, sounds like it will be a lot better, but some review mentions the battery life to be really bad.
I am using my phone for 20 text messages, psuh mail, no phone calls and only visit a few websites on 3G. No bluetooth, wifi or GPS. What can i expect of this?
i'm sorry if my English is not good enough,
but i've the HTC legend since Friday, and Saturday i did a simple test, i put the mobile phone to charge Friday night, Saturday about 12:00 pm i disconnected the charger and i've turned the wi-fi, gps,and bluetolth off, only the 3G network was on.
I had also ebuddy running on the background, after 4 hours i didn't touched the phone, and my battery was about the 25%
And the full charge time was almost 2 hours.... i went back to the shop where i bought the phone, they changed my battery and the did a hard reset.
The battery performance is now a little bit better, but it has not the same performance as the iphone 3gs.
Luinwethion said:
i'm sorry if my English is not good enough,
but i've the HTC legend since Friday, and Saturday i did a simple test, i put the mobile phone to charge Friday night, Saturday about 12:00 pm i disconnected the charger and i've turned the wi-fi, gps,and bluetolth off, only the 3G network was on.
I had also ebuddy running on the background, after 4 hours i didn't touched the phone, and my battery was about the 25%
And the full charge time was almost 2 hours.... i went back to the shop where i bought the phone, they changed my battery and the did a hard reset.
The battery performance is now a little bit better, but it has not the same performance as the iphone 3gs.
Click to expand...
Click to collapse
I think the first time you run your phone it will consume the most power. So it's not the right time to test. I suggest you fully charge and fully consume the battery 2-3 times and then put it for a test.
Full capacity of a battery shows up after 2 months.
You will pass from 1 day to 3 days
So here is one short statistic after second charging.
14% of energy left in the battery after:
39 hours since last charging
2 hours of display on (35% of energy)
37 hours of phone connected to the cell (36% of energy)
13 minutes of calls (13% of energy)
Phone used for me "as normal" - cca. 10 SMS, 2 hours of mp3 and FM radio, one hour of net surfing, running sync with Gmail and Google Calendar.
Yes, it is period of 1-3 months to get full capacity of the battery, but in first few usage, you can fully charge and discharge battery.
I have a one day of full usage of the phone (wifi always on, twitter, e-mails, calls etc.)
Getting better
It's getting slowly better with each charging, second week and I'm on two days. Everyone is using it in a different manner, but my battery improved for about a 70%.
got the legend now for 2 weeks and loving it.
Battery life is good, don't expect to go 2 days intensive use without recharge but no phone with these function have this.
I can easily go with one to two day with occasional wifi, gps use and keep 3g or sync on settled on 1 hour intervals while playing some games using apps etc
Blue tooth i haven;t tried but like any phone the power munchers are wifi, blue tooth gps and 3g.
wifi should save lots of power compared to network operator connection
i use wifi at office, and with extensive usage, i can get about 8 hours straight, that is pretty heavy, the screen barely got to sleep
I have tested the battery in plain sleep.
If the device has wifi off and mobile data off (and no sync, ofcourse) i guess it lasts for a week - 10 days. But then you cant use wifi or mobile data.
If you only let it be in stand-by (screen locked and off, no data or wifi or gps or bt) it last quite long, probably close to the stated 300-400 hours in the manual.
In real life that translates to 3-5% battery drain (tested by me for 24h, only sent 2 sms and talked on phone for 2 minutes) per day.
But in normal use, wifi will drain 5-10% battery per hour and 3g/gprs with autosync drains 2-5% per hour depending on net.
No device lasts for more then a day or two if you acctualy use the device.
I have had my Legend for a week and a half now and the battery life is also getting better with each passing day. I can easily use it for a day and a half with quite a lot of WiFi browsing, and up to 30 or 40 minutes of call time. I'm really loving this phone!
Sent from my HTC Legend using the XDA mobile application powered by Tapatalk
Hi fellow Legenders,
i've had the phone for 4 days now. i am having issues with my battery. I have noted some points that i'll share & hopefully find a resolution for my dismal batt life. I have bluettoh on all the time, but it shows very little drain based on BT alone. Other than that, this phone ROCKS!
After full 8hr charge, the phone lasted approx. 13hrs 38mins before reaching critical level with the following findings:
On 08 April 2010
1. Voice calls used 50% batt – 36mins 11s call time.
2. Display on approx. 30% brightness used 21% batt – on for 1hr 10mins 15s
3. Cell standby on 3G used 16% batt – on for 13hrs 38mins (no signal 1%)
4. Phone idle used 8% - on for 12hrs 28mins
5. Bluetooth used 5% - on for 13hrs 28mins
After normal charge till batt 100% (about 3hrs), the phone lasted 15hrs 12mins 41s before reaching critical level
On 9th April 2010
1. Cell standby on 2G used 50% - on for 15hrs 12mins 41s (no signal 3%)
2. Display on aprrox 30% brightness used 18% - on for 29mins 35s
3. Phone idle used 15% batt – on for 14hrs 43mins 5s
4. Voice calls used 10% batt – on for 4mins 14s
5. Bluetooth used 7% - on for 15hrs 12mins 41s
Looking forward to better batt life as the days go by.
cheers,
Su
Very poor battery life for me.It has 7-8 hours stand-by.
1.Every 5 mins e-mail control.
2.Weather with auto update.
3.Friend stream.
4.Background data and auto sync.
5.Enable always-on mobile data
6.3G
I don't understand whats going on.If i left device when i go sleep with full battery after 7-8 hours i look it.It shows me only left %35 battery.
After disable all auto-uptade and 3g its over 1 days.
My hd2 had 1230 mah battery and super big screen and 1ghz processor.It was using %10 with same usage.
Legend has 1300 mah battery and small screen and 600 mhz processor.It uses %65.
Can anyone explain this sucks status?
I m using the legend... and a hd2 as my other device. would say the battery life for the legend is really dismal...
Sent from my HTC Legend using the XDA mobile application powered by Tapatalk
I am happy to report that my phone batt life has improved tremendously since my last charge. I installed OS monitor & checked to see what might be hogging the batt, & discovered some program was keeping my CPU running inthe high 70's & above continuously. I killed that program, fully charged my phone till 100%, restarted the phone for good measure, & with BT on permanently, more than an hour of wifi usage, about half an hour of phone calls & about 30 smses, after 24hrs, i still had about 24% batt left.
So it has definitely improved by leaps. Hope that helps others who have similar problems.
cheers,
Su
it will be good if you can share what's causing the high cpu usage ...
Oh sorry i forgot. it was OpenWatch for BT watches. It has a problem currently with HTC Legend & SE MBW-150. It doesn't have the full functionality as yet for some reason. The reason it ran the CPU load up, was because i had turned off my watch by accident & set the program to search & connect to the watch. My folly really.
cheers,
Su
After three weeks of use:
10h 52m since unplugged - still at 50% of battery
- Display: 49%. Time on: 1h 46m. Auto-brightness, mostly indoor
- Voice calls: 31%. Time on: 22m 53s
- Cell standby: 12%. Time on: 10h 52m
- Phone idle: 6%. Time on: 9h 6m
- Maps: 2%. (played with maps for a couple of minutes)
Gmail/Contacts/Calendar/Weather sync is on
GPS on (almost didn't use it)
WiFi off
Mostly in area with good 3G coverage.
Actual usage:
- Phone calls
- Some internet browsing
- Some chatting via Google Talk
Nice battery time
I've bought and charged my phone last Thursday. GSM only, using WIFI every day for 15-20 minutes, 10-15 min talk, and it's still at 35-40% after 5 days. I've got a magic battery or what?
Chapell said:
I've bought and charged my phone last Thursday. GSM only, using WIFI every day for 15-20 minutes, 10-15 min talk, and it's still at 35-40% after 5 days. I've got a magic battery or what?
Click to expand...
Click to collapse
I can't believe this . I wanna just 24 hours stand-by.I hate to charge it everyday two times.
Hi guys, this is not another rant post about battery life, but i'm starting to become really
frustrating with it, i tried almost all the solutions provided here on the forum but i can't
simply get the **** out of it. This is my story:
I bought the phone as used around 1 month ago (the guy who sold me the phone used it for around 1
month as well). I was quite satisfied about the device, but i noticed almost immediately the damn
poor battery life. With stock battery, my stats are (this is an average of the last 3 times i
used it):
Average duration: 27 hours
Average display usage: 2.5 hours
Average display %: around 45%
Average standby: Cell 30%, phone 15-16, other apps and android core 1-2
This with the following configuration:
3g off
gps off
background data off
bluetooth off
display brightness set to the minimum
no background applications or live wallpapers
No animations
No vibration feedback
No sounds
No widgets
Removed 5 touchwiz panels out of 7
Wi fi on (actually i noticed some small improvements by leaving it off)
The strange thing is, i noticed that the phone drains a LOT of battery while in standby. During
the night (7-8 hrs standby) my phone can drains up to 20% of the battery life. I read on the
forum that a lot of you guys have a battery drain overnight of around 2-3% which is 10 times
lower than mine.
So i thought about 2 possible causes:
1) Software related(processes or applications running in background)
2) Hardware related (battery ****ed up by the previous owner; phone not going in standby correctly)
Regarding the problem 1) i tried almost every solution provided here on the forum. Updated to new roms (JM5 and JM8) installed ultraslim roms, installed battery saving applications and task killers, performed some exotic "fixes" (removed battery stats file, tried to completely drain the battery following some procedures explained here on the forum). Nothing helped. To check case 2) i bought a cameronsino extended battery. Well with this battery i have exactly twice the duration of the stock battery. Last night i charged it to full before going to bed. This morning, when i woke up, the phone drained 10% (!) of the battery in 8 hours. So the stock battery is not the problem. What should i think then? that My phone is ****ed up? is There no chance to obtain a decent battery life? How is possible that a lot of guys have almost twice my battery life with stock battery?
I guess your phone may not be going into the sleep mode correctly ... try using system panel (from the market) and figure out which rogue app is causing the problem. Mine usually drains 4-5% at night.. (jm8 stock + voodoo)...
Samsung GT-T5800. Android OS 2.1-update 1, I5800XXJH1, Kernel 2.6.29 root SE-S603 #2.
The problem:
1. Battery till 50% discharges normally - about 10-15% per day, but after 50% it immediately shows 15% and asks to connect charger and phone switches off very fast. actually no chance to mane even emergency call. No 40%, no 30%, no 20% in battery level.
2. When connect phone to charger - battery charging level immediately set to 80% or every ~10 seconds: 50%, 60%, 70%, 80%. After that phone charges about 1,5-2 hours till 100% and after about 1-2hours it asks to disconnect from the charger. Battery temperature during charging and after it: 31-33C.
After 3d 8h 40min. (~80hours using applications: Battery booster and Memory Booster, no 3G) of battery usage phone switches off.
Battery usage was:
Android system: 61%
Cell Standby: 19%
Phone Idle: 12%
Bluetooth: 4%
Voice calls: 4%
Time from 15% to 5% - 15 minutes with no using the phone. Battery's temperature 20C, Voltage: 3588mV Phone switches off. I have tried 2-3 times to switch on the phone to make battery more empty and finally switched it on and at the same time connected it to charger.
Here is the interesting charging time line after phone died and was switched on to charge it (sorry - no in seconds):
0:00 - 1% - 20C/3588mV (temperature/voltage)
0:01 - 3%
0:01 - 5%
0:01 - 15%
0:02 - 15%
0:03 - 30%
0:03 - 40%
0:04 - 30%
0:05 - 15%
0:07 - 15%
0:09 - 30%
0:12 - 40%
0:14 - 30%
0:15 - 15%
0:16 - 30% - 28C/3698mV
0:18 - 40% - 28C/3718mV
0:20 - 50% - 28C/3730mV
0:21 - 40% - 28C/3727mV
0:23 - 50% - 27C/3728mV
0:36 - 60% -
0:36 - 50% - 26C/3769mV
0:37 - 60% - 26C/3774mV
0:59 - 60% - 26C/3807mV
1:24 - 60% - 26C/3807mV
2:06 - 70%
2:07 - 80% - 26C/3906mV
2:44 - 90% - 26C/3971mV
3:18 -100% - 25C/4101mV
4:03 -100% - 22C/4184mV - Asked to disconnect the charger.
After this charge GT-I5800 (with no any software changes) stoped to show 50% to 15%, but 30% disappears fast to 15% (it means one short call).
Possible that battery issue reason is that (I think) phone was charged partly switched off and partly switched on.
Maybe there are some battery level controlling OS software bugs, I do not know.
Is it official bug or issue?
Or some guru can comment that battery level issue? I saw I was not first user having it.
should be from the firmware
it seems this happening to all
Well i also have exactly the same issue...
I have observed that when i make/recieve a call the battery voltage decreases greatly because of which the battery also decreases and after sometime the battery voltage comes back to normal but NOT the battery.
My battery also drops down from 50% to 15% or 5%.....It's really very annoying...
I think that this is a frimware issue but i am not sure..I am scared that it could be a hardware issue...
Well i have mailed Samsung also regarding this issue so that they fix this issue in the next frimware upgrade and hope others also do the same so that we have a better chance of this bug getting fixed.....!!!
pravarthegreatest said:
Well i also have exactly the same issue...
I have observed that when i make/recieve a call the battery voltage decreases greatly because of which the battery also decreases and after sometime the battery voltage comes back to normal but NOT the battery.
My battery also drops down from 50% to 15% or 5%.....It's really very annoying...
I think that this is a frimware issue but i am not sure..I am scared that it could be a hardware issue...
Well i have mailed Samsung also regarding this issue so that they fix this issue in the next frimware upgrade and hope others also do the same so that we have a better chance of this bug getting fixed.....!!!
Click to expand...
Click to collapse
And when I switch off / on the phone then it shows probably correct vallue. For an example. It shows me 15% and after restart it is 60 %. What a stupid bug - I've never have this problem with any device before. Even phones 10 years ago were able to show correct battery status. I think this problem was also with original 2.1 android firmware.
Can someone who has upgraded to froyo pl. confirm that this issue is resolved in the new firmware?
Sent from my GT-I5801 using XDA App
TekkenLaw said:
Can someone who has upgraded to froyo pl. confirm that this issue is resolved in the new firmware?
Sent from my GT-I5801 using XDA App
Click to expand...
Click to collapse
yes, in JP9 / froyo is still this battery problem. When I switch on / off the phone then it's ok. Does someone resolved this issue please ?
My issue still exists. Froyo did not help. Also I can't understand why does one time on charging battery becomes hot, another time -cold.
same for me, and today i charged my phone and after charging just put it on my table after 1h i saw that there are only 80%. Didn't see this on other firmwares
Same here. I thought it is because of my battery manager widget which I had installed, but un-installing/master clear also did not help. Looks like it is major problem. Moreover, few of the battery widgets mention that in some devices they report 1% level battery change, but in Samsung I5801, it will be 10%.
what about this issue at JPA ?
when you was installing JPA did you hard reset your phone ? (factory settings)
If yes which application do you use for restore all of the datas and settigns ?
Yes, it was done. Hard reset seems is not related, and did not help.
Same problem here...
Since built in battery meter is not accurate at all Im using custom one but problem remains.
might fix battery issue.
might work...saw it for Epic 4g and gave it a shot (as its Samsung too). Some sites say LiON do not have memory like NiCd did but somehow it worked for me. Now I stay on 100% for 5hrs or so. lasting 2 days with 45mins call time and some Wifi use. Like today charged full 100% at 9AM and now its 2230 and I have 80%.I have switched off a lot of things. See below.
http://androidforums.com/epic-4g-tips-tricks/171804-recalibrating-battery.html
http://forum.xda-developers.com/showthread.php?t=701567
Above needs to be done once only. If it doesn't work then go to service center. Remember battery has 6 months warranty only so be quick and try above on new battery.
I also run LauncherPro instead of stock. Disabled data and enable when out of AP range (only use Wifi when needed and have an AP). Background data/synch is always off unless I use market. All apps are set to never except Gmail. Use K9 Email too and ATK. Am on DDj6 FM. Have removed a lot of apps, foursquare included and run 2 screen with LauncherPro widgets only.
Settings to switch off are here.
http://jvoegele.blogspot.com/2010/10/how-to-improve-battery-life-for-samsung.html
http://www.wonderhowto.com/how-to-hack-your-htc-evo-4g-increase-battery-life-373058/
afalak said:
might work...saw it for Epic 4g and gave it a shot (as its Samsung too). Some sites say LiON do not have memory like NiCd did but somehow it worked for me. Now I stay on 100% for 5hrs or so. lasting 2 days with 45mins call time and some Wifi use. Like today charged full 100% at 9AM and now its 2230 and I have 80%.I have switched off a lot of things. See below.
Click to expand...
Click to collapse
As long as I know li ion batteries doesnt have the memory effect but they still have to be recalibrated from time to time, lets say once a month. That means dont charge the phone until it goes off and then charge to the top.
I wasnt willing to wait for 11 hours for phone to charge when I bought it and after few days I ve notice that battery last very short. After that I ve performed the full cycle (drain to the bottom - when phone turn itself off, then after few minutes turn it on, wait until it goes off - repeat few times until its completely off then charge it fully - I usually turn off the phone while charging ).
As long as I know all modern devices like phones, notebooks etc shut down before the battery is completely drained because they want to have safe margin of the battery power because of, as long as I know, when li ion batteries become completely drained then could be damaged completely so you cant recharge them again. Anyway with that "turn on then its drained" I believe that I use the battery more than normal and that phone will recalibrate to the new situation figuring that battery have more voltage than phone "expected".
Anyway with few recharging cycles like those I ve described above I can use the phone now for a 2 days with moderate usage...
That 50-15 problem still exist but 100% period last quite long and also phone can be used a long time from the moment battery reach 15% ...
Try doing it the other way round!
Keep your device on constant charge or at least as much as possible for 10 days from new and you should have now problem.
I have run tests on Lion powered devices for the past 5 years and I have never had to "calibrate" once.
My battery usage is always consistent and seemingly accurate.
And this method encourages max power from the battery.
Sent from my Ideos S7 using XDA App
i just flashed my I5801 with Froyo (XXJPB and then XXJPA), but having very low battery back up, can anyone advice something which can help boosting the performance of the battery? Please help.