Battery life comparison between to like phones

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hi
i have 2 sony ericsson xperia x8
both with CM 7
dxgingerbread v13 by doixanh

i use one as a house phone and the other goes in my pocket as a second phone as i just changed numbers and my first phone is samsung galaxy s2.

so these two phones came with the new plan for my wifes company both about 2.5 month out of the box with close serial numbers.

both are configured to as listed

performance: ondemand
wifi off
data connection off

i have studied the phones since i got them


so heres some data for you

result in home pocket
min battery life 3 days 1 day
max battery life over 5 days 2 days

i found the difference between the two odd as both were not touched or used but i found the difference to be that when i walk the home button gets pressed and turns the unlock screen on briefly not even enough to register on the graph.
but if it is placed badly in my pocket the battery goes really quickly a big drop off on the graph.

the first time i ran the test on the stay at home phone got 6 days out of it not bad at all the next time it got 2.5 days i was shocked the only thing i had done was sync the calender and contacts between the phone and the computer while on charge.

so why the difference.
well it was adversely affected by being woken up. and i have to say i only looked at the battery one a day in the morning it was not me.

so what was waking it up for long period. it was the notification bar.
first of all it was the calender reminders. after disabling all was tranquil again.
then there was one missed call that i didn't see for two day this had the the phone waking up all the time and by checking the time of call to the graph you can easily see the relation.
so i tried it again charged the called it and left it without interaction 2 day flat battery i could not turn it back on. then charged it and left without being called 5 day interesting. note there is that little light that flashes on the front.

next thing was i got a sms from the network same thing kills the battery.

so then i started checking it as often as possible and clearing any notifications.
if you clear it straight away battery life stays the max if you leave ny notification a couple of hours the battery is discharging at an alarming rate.

so what really kills the battery of the X8.
i concluded 2 things the home button being pressed in the pocket and notifications that are left uncleared.

i have to say this also affects my samsung galaxy s2 for thehome button and the notifications if sync is turned of and the 3g is left on i can get 2 days with little use of the internet for emails ect. let it do as it likes and not cancel the notification can be 13 to flat.

hope this helps someone else.
thanks andrew

I think it's not because the notification but the LED itself uses a lot energy (phone must be in awaken mode to flash the LED light). So, I think if you disable the LED, it will be much more better.

Led can be a fuel burner, especially this one we have on our phone, with the option of colour change. The basic principle of changing the color is to change the voltage that goes in to the LED. And even the display, when it is lit up, it consumes lot's of energy, especially if you are on Max brightness.

I did the same test with the led turn off with the only notification in the status bar and the battery is affected in the same way. could some else try this to confirm the results.
it is the way the operating system handles the messages. here are pictures of best 7 days and worst cases.





but the home button is a real battery drain when the phone is in my pocket it is always turning the screen on when i walk. ive got to say the button on the iphone is a lot better designed.

Originally Posted by ivanjkd

Led can be a fuel burner, especially this one we have on our phone, with the option of colour change. The basic principle of changing the color is to change the voltage that goes in to the LED. And even the display, when it is lit up, it consumes lot's of energy, especially if you are on Max brightness.

=) neccecary text

well i think there is a lot o variables just one single little thing like que led indicator can drain your battery, even the times of charge of the baterry o the temp of the batery it's always aproximately

but for mi if th baterry can reach 2 and half day i'ms satisfied XD

So what,my battery can last for years,if I'm not using the phone...

Sent from my XPERIA X8 using XDA Premium App

My battery takes about Min 18h and max 30h with Stock Rom.
With MiniCM6 and FroyoBread it's more or less the same.
With GingerDX and KuyaDROID i have about 16h hours min and 24h max.

If i don't touch my phone the stock rom gives me years of battery, even with any LED notification it stands for some days.

well obviously if you don't touch your phne the battery last a lot...

but now i have a diferent question with the stock to fully charge (0% to 100%) it takes me about 2 hours but with all the roms it charges in 45~55 mins and the battery life lasts the same time about 2~3 days its normal ?

I got from 25% to 5% in 1d 3h (gingerdx) I HAVE THE SOLUTUON TO FIX GINGERDX!