choffy21

Will keep that in mind.

hookem

Eris user here.

Got these specs for the Nexus One from Google:

"Power and battery Removable 1400 mAH battery Charges at 480mA from USB, at 980mA from supplied charger

Talk time
Up to 10 hours on 2G
Up to 7 hours on 3G

Standby time
Up to 290 hours on 2G

Internet use
Up to 5 hours on 3G
Up to 6.5 hours on Wi-Fi

Video playback Up to 7 hours
Audio playback Up to 20 hours"

This from a 1400mAh battery and power hungry hardware? The Eris comes with a 1300mAh and has a 3.5 hr talk time. Is the difference that N1 is running android 2.1?

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Last edited by hookem; January 10th, 2010 at 09:34 AM.

ekyle

I found that with my Eris that after several times of letting the battery hit 5% - 10% then doing a full charge overnight helped bring it up. I unplug at around 7 every morning and am at about 30% or so by 10PM. Not as good as my BB was but I don't have push email any more either Still worth it

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informale

What do you mean by that? Do you mean you don't consider GMail sync on Android as push email (which of course it isn't, but it still is good) or you don't use it (auto-sync off)? It makes big difference battery-wise.

Last edited by informale; January 10th, 2010 at 10:12 AM.

oniongirl

From the other current battery thread, important info to re-post I think:

How to prolong lithium-based batteries has some interesting info on lithium-ion batteries, specifically:

"The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often..."

"Some lithium-ion batteries fail due to excessive low discharge. To prevent failure, never store the battery fully discharged. Apply some charge before storage, and then charge fully before use...."

edit: Just noticed there is a "Simple Guidelines" section at the bottom of the page. Has nice bullet points. Also explains why my laptop battery is rubbish

osubrad04

Just my two cents... The Nexus 1 hasn't disappointed me. I have turned off the GPS and that seems to make a serious difference in the battery life. I noticed GPS was running when I was using the browser. Major battery killer there... after that I ended the day with 80% battery life and over night my battery drained 3%. The GPS edit is the only thing I have done and I dont use a task killer. I made a few calls yesterday totaling about 30 minutes, email on push with about 40ish received and sent texts all day.

GPS being used by browser the culprit?

Mrqwebb2

I haven't noticed anyone mentioning twitter apps? I will be switching from the G1's horrible battery and would really like to know what effect twidroid has on the nexus one, say with updating tweets every 30 min or so.

ekyle

I just meant push mail in the sense of Blackberry. Where the server does the work instead of the phone.

ekyle

I just the native Twitter app that came on the Eris (Peep is it?) and set the updates to manual. That would nullify any battery drain from that app right?

Mrqwebb2

Does that come standard on the nexus one?

JoeIndy

I agree. This has been my experience with Li-Ion and Li-Polymer batteries for years. The first charge cycle sucks. Run it dead. So dead you can't get the phone to turn back on. Then charge it for 10 hours. After that, it'll run like champ.

Even though the battery people say it's not necessary, do it once. Trust me.

omatix

I'm really suspecting I have a bad battery, then. There are no major apps using power according to the Battery Status info screen, my GPS is off, yet I'm always down to about 60% after 4-5 hours of intermittent use of the phone (probably less than 45 mins total of non-standby use).

I do have the facebook widget and news/weather widgets running, but that surely couldn't take so much battery, could it?

ekyle

The weather widget updates often and I believe that it tries to grab your location, even when the GPS is off. I could be wrong on that since I'm only 5 days or so into owning an Android device. News aggregators can update often as well. I'm not too sure about the Facebook app. I stopped using it after I couldn't get notifications to work.

I suggest to try ditching the weather widget and see what happens and go from there.

I've got a lot of troubleshooting experience from own a BB Storm before this lol

Last edited by ekyle; January 12th, 2010 at 09:46 AM.

androidtx

I don't seem to be having any problems, I have been using it a ton for web surfing, email, texting, taking pictures, video, etc. I have only charged it once since I got it around 3pm yesterday, and took it off the charger around 5pm. It is now about noon here the next day, and I still have 30%. I guess after getting used to a G1, I am not that picky. Seems about on par with how my iphone 2g used to be. I imagine once I get over playing with the phone, it will probably last a couple days with no charge, though I am totally in the habit of doing things like plugging my phone in when I am in my car, when I sit at my computer, and when I am watching tv, that it really is no big deal to me. And when I travel, I usually always have my laptop, so I always have a power source I can mooch off if need be.

mi_canuck

what screen brightness settings are you guys with good battery lives using?

obviously turning off live wallpapers is a must...

i was running like 75% screen brightness... but now down to 25% (luckily, the slider scale doesn't seem to be very linear, so even at 25% it's quite bright... almost too bright at 75% or higher...)

anyone running auto-brightness? i tried it, but it fluctuates too much and find it kind of annoying in a distracting way...

also noticed that have an IM app (such as HI AIM) running sucks down the battery pretty quickly....

after a few charge cycles though, with live wallpaper off, 25% screen brightness, turning off IM apps when not in use, turning off WiFi when not in use, battery seems to be holding up much better...

of course, i'm not playing with it every 5 secs like on the first day that i got it

cheers

SynergyNT

Yesterday I only got about 8 hours out of my battery with light to moderate use. So far today, the performance is much better. The change I made was to turn off GPS. I've got the weather widget running, which can find you based on cell towers, but there shouldn't have been anything else running in the background. For some reason, the GPS seems to be running in the background almost all the time if turned on.

DellyBelly

My battery life is kinda weak; Ive been at about 6 hours or less since i bought mine. Going to try some of the tips posted here although it seems we have some conflicting opinions on "conditioning" the battery.

laughter95

does live wallpaper make much of a difference? i kinda like seeing the blades of grass swaying ever so slightly, and the picturesque dusk makes me feel good that the day is coming to a close.

mi_canuck

shouldn't the GPS only be running when you see the little satellite dish icon flashing in the status bar? that's what I wonder...

i leave it on, since i like having my weather location update on the fly... location/gps doesn't seem to even show up on the battery usage page...

display in my opinion is the biggest draw.... which i why i've dropped the brightness down to 25%... the screen is so good and bright that it's fine at that low setting...

KeithG

Yes.


The weather widget should be able to get by with coarse location without issues... unless your weather is so localized that you need better than a 1km resolution :P .... I still leave it on though... (different handset though)

sooper_droid12

Absolutely wrong. That's the one way to kill the battery and shorten its life. You should do long drains maybe once out of 4-7 charge cycles. These batteries do not have memory, but occasionally the chip inside the battery needs to be re-calibrated, hence the long drain power charge. Better to charge up at 40% than let it kill to 10-20% and bring it up to full.

sooper_droid12

No, Eris has Sense UI and it isn't native. Native Twitter doesn't exist. HTC layered a widget skin over Android OS which includes this kind of support. Not available on the N1 and any HTC app found in the Market is available to HTC phones only (not including the N1).

sooper_droid12

Dangerous! Some people have done this accidentally (forgot their charger or something) and the result: A BRICKED PHONE! Very risky.

oniongirl

I have read the same sooper_droid, except my information said completely drain once every 30 cycles for the same reason - the "fuel gauge" may start falsely reporting an empty battery, cutting the power to the device. Frequent charges are the way forward, with limited complete drains if it can be avoided.

sooper_droid12

Maybe it was 30 cycles Either way, frequent long drains and deep charging cycles is a no-no and I wouldn't recommend it in the early part of the battery's life.

mi_canuck

didn't the HTC instructions say to charge the battery 24hrs at first? i didn't do this (no time to leave it on for 24hrs... had to use it right away!

i wonder if that might have something to do with the battery woes of many??

that initial long charge setup might set the bar for the battery? just wondering... i don't know enough about battery tech... i'm a mech eng... lol

Last edited by mi_canuck; January 12th, 2010 at 05:40 PM.

oniongirl

How to prolong lithium-based batteries

has pretty graphs and everything.

SynergyNT

That's what I would think too. I also have the weather widget running, but it seems GPS was running nearly all the time. The tower triangulation location works fine for weather.

dfdff

There are always some apps running in the background,they are burning your cellphone battery,you should close them,i find the info here,good luck!

T-Mobile

Here is my battery life over the past 4 days... last night you can see i left the phone off the charger at 88% and disabled background data use... this left a stairstep decline at 1.5% decline per hour until 8am it was 74%. For some reason with disabled background data use, my touchdown exchange mail still pulled in messages, gmail wasn't. No other app would work for me with background disabled.

No matter what I've done to conserve battery life it averages a 1% battery life decline every 6.9 to 7.3 minutes. In other words, it lasts approximately 12 hours give or take .5.

Last edited by T-Mobile; January 12th, 2010 at 10:04 PM.

mi_canuck

do you have an app that grabs data points for the battery life over time, or was this a manually intensive process?? if the latter...you're a patient man!!! LOL

JoeIndy

These people must have amazingly bad luck with batteries. If running a battery completely dead once ran the chance of turning the device into a brick, there would be lawsuits and government investigations in the US. How many children each day run their Nintendo DS until it's dead? It's using the same battery technology you see in mobile phones.

oniongirl

Yeh, I don't think it will brick your phone if you run it dry, just that it will detract from the performance of the battery over time.

Although I don't act like it, technically I am supposed to be an adult, but I love my DS and plug it in the second the red right comes on. The possible horror of losing save data has me running for the nearest plug socket!

gibson6594

I've been unplugged for over 15 hours and still have 32% of my batter left. Sync on the whole time, live wallpaper, some wifi use, browser use, light phone use.

MartinS

Took off charge at 8.00 this morning, have Wi-Fi on and Sync, live wall papers. Have also been messing around with it a fair bit and had a quick game of table tennis. now 15.00 and battery at 77%.

Not bad according to me.

informale

Not bad indeed. But did you have APN on?

MartinS

APN - mobile web?

If so, yes.

sycamore714

Good for you. I am not sure if some of us simply have bad batteries or we are doing something.

I Have everything turned off , WIFI , GPS , Sync and Bluetooth and brightness set to auto.

I dont have any apps running in the background. Havent download anything on the new phone.

I charged to 100% last night and this morning I wake up with 27%. I charged it again until 9.00 am and after removing the charger it is back to 62% by 11.30 am

I used to complain about the battery for my palm pre but this is turnig out to be worse.

Luckily I dont have the 3g TO Edge switcihing issue and get constant 3G with 5 bars in my area.

informale

yes, mobile web aka data transfer aka 2G/3G

if so, very very impressive, as this setting on makes a lot of difference.

but still, it probably won't last full two days (30-36 hours), so you'll still probably charge every night.

Last edited by informale; January 13th, 2010 at 11:35 AM.

gibson6594

Constant 3G might be worse than the switching

sycamore714

I dont think so. Switching should be a battery drain , being locked into 3G should not be.

Constant 3G surely is worse for the battery than constant 2G but it should be better than switching.

If this is what is going on they there is really some poorly written code somewhere.

Will try forcing the phone to use 2G and see if it improves. Thanks for the comment.

sycamore714

Just looked at the stats for what is using battering in the settings menu and it says that Display is using 60%

I have live wallpapers turned off and brightness set to auto.

Any idea what else in the display could be draining the battery

gibson6594

Well, Live wallpapers uses very little battery power. I've heard that auto brightness can be a small battery hog, turn it off and turn brightness all the way down unless you need it higher.

sooper_droid12

All I'm saying was that's what he reported. He did nothing out of the ordinary except forget his charger while at school. He put it on the charger the first opportunity he got and the phone was bricked. The Nintendo DS is not the same as a mini-computer these smartphones are. But hey, to each his own: If you want to run your battery dry repeatedly, that's fine. I'll keep doing it my way and be able to smile comfortably at a phone that 1) will turn on faithfully, 2) can go through 18+ hour day and still have 40% to spare

mi_canuck

try turning off auto-brightness and set brightness down at about 20% or less... assuming you're not in a super bright environment where you need more screen brightness to be able to read it...

apparently auto-brightness might be worse, because it's constantly adjusting (and maybe even the sensor itself draws juice??)

MartinS

8 till 8 - 30% left. Played some games...

mi_canuck

@ MartinS: what's screen/wifi/gps/sync settings??

MartinS

Screen: first level of backlight on power widget.
Wi-Fi: on all day
Mobile network: on all day
Sync: all Facebook, Twitter, Gmail on all day

Have been texting, couple of calls, internet and playing games.

Just dropped to below 30% at 9.30 pm.

omatix

So, after starting this thread and getting pretty annoyed at my battery life, I called HTC. The guy wasn't that helpful. I jumped through all the hoops, just to show that I hadn't got anything running that was going to kill the battery. I understand that he had to check a lot of things. When I got nowhere, he told me to run down my battery to zero, wait until the phone switched itself off, then charge it again. I hadn't done this since after its first charge. I agreed to do that, but got a case number, because I was sure I'd be calling back to try to get a better battery.

So, I turned on GPS navigation and Pandora and killed the battery over the course of around an hour (from 22%). I took the battery out, left it sitting out for maybe 20 mins, and recharged it overnight. I was shocked to see that it actually helped a lot - now I'm able to use my phone throughout the day (8-5) and have around 50% battery at the end of it. Nothing like the first day, when I tried to show it to some friends at 2.30PM, just to have the battery die in mid Google Goggles demonstration.

Last edited by omatix; January 13th, 2010 at 07:58 PM.

androidtx

lol @ "mid google goggles demonstration".