Related
Hi,
I have a very recently purchased XDA II.
I was under the impression that the battery time was considerably improved.
Although I have turned down the backlight brightness when on battery power, it still starts to loose power when I receive or send a SMS for example.
Is this normal or do I have a duff battery ?
Steve
try turning off bluetooth when you dont use it
it's suppose to be a batt hog
Yup,
done that. I only have BT on when I am actually using my headset.
Any other idea's
Steve
when does it auto turn off ?
when does the backlight turn off ?
are there any SD cards connected seem to recall that they eat batt aswell
I've had mine a week, have the same power drain problem. After charging it all last night I managed to use it as a PDA for a total of 40 mins over a 6 hour period today before the battery drained. No phone calls were made, Bluetooth disconnected (I do have a 256 MB card installed, but I don't know if this has anything to do with it), furthermore the backlight is set to the default setting and the auto power off set to 1 min. In any case I would expect to get more than 40 mins use of the PDA, the specification states upto 15 hours.
I took the unit back to the store, they say that this is a rare problem (yeah right :roll: ), they gave me a new battery which I am now recharging, hopefully this will work.
mmmm, it's very strange.
I am doing a test now. I have a imate with the official imate upgrade. I have a gps sysonchip bt. One and half hours ago i connected the imate with the gps and i started a demo of 500 km. Now the battery is at 75%.....Maybe de last upgrade solved this problem.... :shock:
You should get far better performance than this.
Three things that can drain the power:
Communications/Peripherals - IR, bluetooth, SDIO wireless LAN etc. Disable all of them unless you're actually using them.
Processor hungry programs - check if you have anything running in the background that could prevent the device switching to full sleep mode.
Lack of radio signal - if you're out of contact with a base station, the device tries to connect at full power every 30s - a big battery drain, so if you know you're out of contact, turn off the radio.
However, even with everything running, I'd expect a running time way above 40mins, so it sounds like you have a hardware problem with your device. I easily get 3h full brightness, full processing (ie watching a movie or playing a game) with radio on.
Turn IR off?
Is there anyway to actually turn the IR off on the XDA II?
Just the Start-Settings-Connections-Beam-Receive all incoming beams checkbox.
tried the new battery today, same procedure as yesterday (no bluetooth etc), had a slightly better performance today from the new battery, managed to get roughly an hours actual use out of the PDA (games etc) over a period of... 10 hours, ooh atleast it lasted the working day so must be better... however still no way near the 15 hours PDA work time as stated on the box!
However something I have noticed is that every now and then (after switching off the unit and just leaving it on the desk) the screen comes to life displaying a running program, (just how do you turn off the media player? I now realise it isnt with the "X"). Anyway why does it "power" back up? I wonder if this has anything to do with my power problem, that perhaps it has switched back on whilst in my pocket (BTW I have set the buttons so that they do not switch the PDA on accidently)
So, I'm recharging again, (I think I might take the MMC card out see if tht makes a difference). I expect something better for my EUR 500, what is the point of being able to go online anywhere if you have to be plugged into the mains! If I can't get the damn thing to work satisfactoraily by next week then it is going back to the shop, despite it being a Gucci shiny piece of kit!
@MoistVelvet: Actually, it;s not so much the device itself but the operating systems that is the cause of a few quirks. Luckily, a lot has been written on this forum and other forums on websites such as www.ppcw.net. A lot can been improved by limiting the number of programs that can be found in the \windows\startup folder of the XDA II. I'd suggest you have a look around in the various topics. I ended up honing my XDA II to a point where I am actually very very satisfied with it's performance ...
Can someone repost the items in the windows start up folder than can be deleted and what they do on the XDA II.
I was surprised at the amount of apps in there, but dont know what I can safely delete.
Steve
Wiz,
thanks for the tip, I'll have a look around.
Well the batery did last longer yesterday, managed to get through a whole workig day before it ran out, so the jury is still out!
Realised perhaps one of the reasons why the unit would switch itself on, whilst at work I have a very low signal, so every minute or two the signal strength would go up and switch the screen on. I have set to auto switch off after 1 min, but I wonder if there is there a way to stop it from switching on?
Hm, my experience is quite different. I use it throughout the day with around 15 phone calls, at least 2 GPRS synchronisations, some other usage of contacts, calendar and email and when I get home it's still around 60 percent - the most drain appears to happen on the way back home when I use the BT headset...
When your uses so much more power you may like to check what kind of programs you use. First idea is to have a critical look at fancy today plugins... my worst experience was with Battery Pack, the best way to empty your battery :lol:
Maybe you like to use UpTime plugin (http://ae.inc.ru/uptime_t.html) which really tells you how much you actually use the PocketPC and which doesn't do anythings while it's switched off...
MoistVelvet said:
Wiz,
Realised perhaps one of the reasons why the unit would switch itself on, whilst at work I have a very low signal, so every minute or two the signal strength would go up and switch the screen on.
Click to expand...
Click to collapse
Actually, the reason it periodically switches on is the O2 Homezone application. Whenever your phone changes to a new base station (which can happen even if you don't move), the stupid Homezone app turns the phone on. This is a known issue, and the only known remedy is to disable the app completely (remove from Autostart folder, soft reset phone).
Cheers
Daniel
Hi
I have an xdaII, which i load loads and loads of things onto. I did find that the battery was draining quite quickly. eg. charge it all night, just leaving it running in the day with hardly any use would drain the battery by about 90 percent! Bluetooth was off etc.
One time, the thing drained completely, and it needed a hardboot. Im going to send it back shortly for investigation/repairs.
However, since it hardbooted, i have not installed a thing. And i am finding that the battery is lasting a lot longer. I managed to go 3 days, of average usage, (few incoming/outgoing calls), without charging the battery!
This makes me think some apps must cause the battery to drain. I had battery app installed (that runs in today screen). I had fonix voicedial installed. I had quite a few games installed.
I think some software was causing the battery consumption,.. possibly battery pack.
re
I have previously had problems with battery drain, due to apps running in the background.
I also found specific apps like the battery pack, LAN sdio, bluetooth and the camera app, would drain the battery quickly.
Although you can manage closing apps down through settings/system/memory/running programmes I found the app Gigatask http://gigatask.com/ a simpler way to manage tasks.
There are others, but I found this suitable for my needs.
Now when I close an app I know it's closed and not running in the background draining the battery.
I still charge daily, habit now when I get home from work, but I have no worries about battery drain, and it rarely goes lower than 65% for a normal days use.
Cheers, Shire
turning infrared beam recieve off will help a little
:wink:
i basically screwed my xda2s ..i mean the registry,..i want to increase my o2's battery life to its full capacity without caring the data loss as i store all my data in my 1gb sd card..but the big question is that why does yur pda leech that battery even when we fu"""ing switch of fthe device...i got some relation with the "flags" in all the power keys in the registry..they all have those specific values..i changed some and got screwed...now what i wanan know is that someone please help me out there ...i just wanna get my pda to give me full battery life..it right now gives me 4 hrs talktime..and works for like 2 days ..but i wanna increse this..i also read that changing to 2g from 3g would help but i have nno ideo watsoevr that xda2s uses this or not..i dunno abt that topic..but what i do know is that there should be no considerably *great* quality loss in the transmission....and thats if the whole thing stans valid...
but whateva be it.. i just need to get my ppc to give me that battery life...
just someone help me out here
1 - The 2s is NOT 3g, so you are already on 2g.
2 - when you turn the device "off", you are putting it into standby. This keeps power going to RAM to prevent dataloss. If the device went off, it would loose all the settings (e.g. a hard reset). The device also needs power to monitor the phone section for activity (incoming calls and messages).
Playing with the registry is unlikely to do much for power consumption, and the onlyu way you are likely to fix you current problem is by doing a hard reset.
For a PDA phone, 4 hrs talk time and 2days is quite good. Remeber, the battery also deteriorates over time (can be helped by discharging completely, then charging overnight, then discharging completely again) and the quoted values are always in "optimal" conditions (full signal etc., a low signal on phone requires more power for the transmitter to function).
You could also increase battery life by turning down the backlight.
Also, is there any chance you could try to type legibly (e.g. fullscentences) and NOT in bold
first of all, yes, you CAN do stuff in the registry that WILL affect power consumption. You can set it so that various components are in specific power rating when in standby/unattended/on... there are 4 different power ratings (1: full on 2: working 3: standby 4: off). However, i can not help you with this, as i have not found out what exactly is going on... Can you tell me what you have found out about it? I hope that the device you are speaking of is similar to the HTC Wizard.
Also, Lithium Ion cells do not really like to be deep cycled (complete discharge)... you do NOT want to drain it. Do NOT discharge it completely. http://en.wikipedia.org/wiki/Li_ion
a low signal on phone requires more power for the transmitter to function
Click to expand...
Click to collapse
The low signal on the phone indicates the strength of the signal that is RECEIVED. It is NOT about the signal that the phone EMITS. Only if the signal is lost, the phone will start transmitting, full power, to try and reestablish a connection. As long as there is even one bar in your indicator, you are ok.
If someone has a better explanation, please, i want to learn more.
As a side note, i much prefer someone who says correct things with wrong spelling to someone who does the opposite.
re:
ok ,thanx wit all the info guys but i still havent been able to figure out what those flag values in the /control/power/states key stand for..as for the various states..there are also some defualt values like 0x1 , 0x2 , 0x3 0,4.
but what i wanna know is that from the 72 hr rule,and the other "suspended mode-battery draining functions" of my pda.. can i reduce this time to abt 12 hrs or maybe even 20 hrs for the sake.
also ythere are certain irrelevant functions that the xda uses its power on even while its suspened..the basic one is the phone function..of course thats neccessary.but what is unnesseccary is the function of ..lets say camera , bluetooth, and wifi.we do not need these functions when our device is off..so what im looking at is that when i switch off my xda ..i specifically want itr to only use power for minimal critical system processes.
im not sure if you know what i mean but hope you catch the right track.
my xda 2 suffers from poor materials. The battery terminals get a patina on them that stops the battery from charging properly. The only solution was to lightly file/scratch their surface every month or so. It only started after the battery got almost a year old.
I own a i-mate jam (updated with rom 1.12.04 ITA). When The battery power go down 10% i get following message (i traslate from Italian)
"warning: SD/MMC
residual power insufficient for selected divice to work. Close some active functions or connect AC Power adapter for recharge battery and tray again"
Consequently when the power go down 10% i can't use all programs i istalled on sd card.
Before i owned an Hp 1930 pocket pc and i could use sd card under 10% of battery power also.
Same thing with bluetooth: i can't use it under 10% of battery power e consequently i can't use bluetooth headset.
is that a malfunction of the i-mate Jam ?
and is there some workarounds ?
Thank you in advance for the answers.
servizio said:
I own a i-mate jam (updated with rom 1.12.04 ITA). When The battery power go down 10% i get following message (i traslate from Italian)
"warning: SD/MMC
residual power insufficient for selected divice to work. Close some active functions or connect AC Power adapter for recharge battery and tray again"
[...]
is that a malfunction of the i-mate Jam ?
and is there some workarounds ?
Click to expand...
Click to collapse
It is not a malfunction, but a security feature. When going low on power the device turns off those devices to reduce power consumption which will enable it to keep the data in memory for a longer time. This is something conceived for the regular users wh install their stuff to memory, not for power users like us who keep progs on SD etc.
There is no workaround I have have heard of, and the topic came up quite some times here.
Consequently when the power go down 10% i can't use all programs i istalled on sd card.
Click to expand...
Click to collapse
The best way to avoid this (and do good to your device) is to recharge more frequently. I don't know about your usage, but with the batteries in the Magician it is thought to be better to recharge once the battery reaches 30%-40%. That is supposed to give the longest battery life.
So, if you can recharge more frequently and do not let the battery drain that low. If you are on the go for long periods of time, consider investing in a new high-capacity battery or get a second one so you can change them.
for psych0t1c:
Thanks for your answer.
I know it's better to regharge battery before it drain that low, but as far as i know, the more you recharge your battery the less it lasts.
Besides, even if you own a high-capacity battery, it can happen anyway to remain with a flat battery and consequently without all programs in sd.
Consider that i do all my backups in sd card, than when i remain with low battery power, i can't do any backups.
Finally i can't even use my bluetooth headset.
For all those arguments i would have sd and bluetooth at my disposal even below 10% of battery power.
servizio said:
I know it's better to regharge battery before it drain that low, but as far as i know, the more you recharge your battery the less it lasts.
Click to expand...
Click to collapse
This is true for NiMH batterys, which are pretty old tech and no used in cellphones and PDAs anymore. In those you had a memory effect. Current Li-Ion or Li-polymer batteries can actually lose capacity when drained so low. It is usually suggested to recharge them when they go below 40% that way the battery will keep the full capacity for the longest time.
http://www.batteryuniversity.com/parttwo-34.htm
http://www.batteryuniversity.com/partone-23.htm
For all those arguments i would have sd and bluetooth at my disposal even below 10% of battery power.
Click to expand...
Click to collapse
It seems that this is not possible... I have not found any kind of hack or solution. Vijay talked about planning to take a close look at it, but I have not read anything about it since...
For psych0t1c:
psych0t1c wrote:
http://www.batteryuniversity.com/parttwo-34.htm
http://www.batteryuniversity.com/partone-23.htm
Click to expand...
Click to collapse
Very very Interesting web site.
You are right for the li-ion battery charge.
I didn't know it.
Good thing to know.
Thanks psych0t1c.
anyway, if someone knows any workarounds for my problem, any suggestions are welcome.
Didnt read the batteryuniversity page but there is no memory effect in Ni Mh.
Memory effect was in NiCd batteries.
Li Ion is preffred due to 2 reasons -
1. Power to weight ratio
2. Life
High capacity battery.
Hi,
I have an O2 IIi, with a 3600 mAh and I can go for more than 3 days with it.
When I get to 10% of the battery I can for more than 8 hours. Stand by, and maybe 40 minutes talk time.
Isn't there any registry hack to modify that 10% ?
It would be great to be able to change this to maybe 2 percent as my universal is often out of battery when i get to it and i have to wait a long time before i can listen to my music. Surely there is a registry hack for this one.
my exec battery doesnt last very long.if i fully charge it then turn the phone off,the battery is dead flat within 24 hours.and thats when i dont use it at all.
the only way i have of charging it is with a USB cable.
is there something i,m doing wrong?
try turning on flight safe mode when not in use that tends to save a lot of battery life
I left my Universal in the closed position at 47% and two days later returned to use it. It still had 45% battery life. This is with bluetooth turned on (I never have it turned off).
I hear WiFi is quite a battery drainer, make sure you have that turned off. I don't use WiFi (Only GPRS) so I never have WiFi on.
Hi DavidT. may i ask what ROM you're using now. my phone only last for about 6 hrs max. without any use. NO BT or wifi on. thanks.
bradan said:
Hi DavidT. may i ask what ROM you're using now. my phone only last for about 6 hrs max. without any use. NO BT or wifi on. thanks.
Click to expand...
Click to collapse
I'm using O2's 1.30.107 WWE ROM.
I decided to test again last night. Left it at 89% in the closed position approx 10:30 pm, opened her up this evening at 7 pm 87%.
If I constantly use it, I only get about 6-7 hrs of combined phone/gprs/pda usage out of it on the regular battery. On the extended battery I can use it for a few days
make sure that there are no background programs running. It should run for almost 3 days without use in that mode. If you let some IM running that it won't last for more than 24 hours
ok, there are a lot of forums on this topic, and a lot has been identified.
I am at the moment using Ivans AKU 3.2 Rom, and this is a great battery saver. Not sure the tweaks used, but here are some additional suggestions:
1. Turn screen off after 2 minutes
2. Turn device off after 3 minutes
3. WIFI auto off after 2 minutes
4. Disable bluetooth when not in use
5. Turn off beam auto receive
6. Turn off error reporting
7. Remove anti virus
8. If you dont use UMTS, disable and switch it to always GSM
9. Ensure active sync isnt constantly running
10. Use GPRS only when you have to
11. Wind back the screen brightness on batteries to the very minimum, just before it blacks out.
12. Try to minimise the number of SD card read and writes (ie today screens, memory card readers, icons linked to SD card)
With all of this, and only general phone, PDA, and WIFI usage occuring sometimes during the day, I could get upto 3 days on Ivans rom. But usually, on the imate rom about 1.5 days.
If I use all of these non-stop constantly all day, it will be pretty drained after 1 full day.
It has occured in the past, and I dont know how or why, but something was running, and within an hour or two, battery was completely gone.
I couldnt fix it, so I hard reset and it didnt happen again. I suspect some programs get themselves into an endless loop (eg Activesync or others), and perhaps reading memory cards, etc caused it dont reall know.
simon_darley said:
ok, there are a lot of forums on this topic, and a lot has been identified.
I am at the moment using Ivans AKU 3.2 Rom, and this is a great battery saver. Not sure the tweaks used, but here are some additional suggestions:
....
Click to expand...
Click to collapse
how can I kill the ActiveSync process?
Take a look here for tips and a great write-up on power usage...
http://blogs.msdn.com/windowsmobile/archive/2006/08/04/689069.aspx
I am unable on ivans to kill it fully, always comes back.
on older roms, try
1. open activesync
2. add server source
3. enter any dummy entries
4. set schedule to manual
5. delete server source
6. reset
if u use push email, this won't work.
Hello , i have a huge problem with my nook : the batery.
It is a new nook,i tried as it come and all was perfect but i upgrade to 1.2 and rooted it
with NookManager after making a Image with Noogie.
I disable the app and all was ok.I also install a few programs :
norefresh ,no settings,button savior,orion pdf and styletap
When i see the services it said:
task :
relaunch (always is consuming ,with a mean of 12 % )
library
system
appstore
dialer
services:
android system (also always consuming ,with a mean of 14%)
no refresh
no setting
cloud service
test center
device manager
I have charged full the nook a week ago,i have used it 10 min ,and now i was to use it,it has dicharged.(i look it 3/4 days after and it had lost
a lot of batery,being on standby.
What can i do?
I would like use it for reading and also if it is posible conect a usb-keyboard and write also.
thanks
Yes. I have the same problem. My Nook quickly discharged. Just for a few days.
cualquiercosa327 said:
I have charged full the nook a week ago,i have used it 10 min ,and now i was to use it,it has dicharged.(i look it 3/4 days after and it had lost
a lot of batery,being on standby.
What can i do?
Click to expand...
Click to collapse
Orion PDF and StyleTap are the only things you list that I don't have on mine, and my Nook's batter lasts much better than that. Do you turn WiFi off when not in use? How do you put it to sleep (leave the screensaver to come on, push and hold the 'n' key, use Button Savior's soft power button, or push and hold the rear power button to turn it off entirely)? I use combinations of the first three, and always turn off WiFi when I've finished with it.
First step would be try removing those apps, recharge to 100% and see how it lasts after.
If that doesn't fix it, restore your backup and return it to stock and see if that changes the behaviour. If it doesn't, your battery is probably bad. I think there's a lot of new old stock being shifted at the budget prices right now, and LiOn batteries only have a nominal lifespan of ~3 years from manufacture.