10 Hour Evo Battery Life: Graph of Battery Usage

[pingpongboss]

Can you post an update and screenshot when the battery reaches 0%? I wonder how long it'll last.

 

[bmwboyee]

Did you cycle your battery correctly? I think you are seeing the longer cycles because your battery is getting broken in.

 

[pingpongboss]

Did you cycle your battery correctly? I think you are seeing the longer cycles because your battery is getting broken in.

Are you asking me? I've had my Evo for 2 weeks now, I doubt the battery still needs more "breaking in"

 

[jmxp69]

Normally this type of day wouldn't use a close to a full battery for me but in this 24 hours I went from 40% to 15% charge to 98% back down to 40% so essentially a full battery drain.

Gaps in data:
I shut off monitor recording but did not power off the phone or charge overnight for the 8 hour nighttime gap. Recording seems to be taking a decent chunk off battery life as I haven't been using a full battery up in 24 hours unless I have an extended GPS or 4G sessions (or mobile hotspot usage) while out and about. It looks like the idle usage was substantially lower with recording off based on battery consumption over those 8 hours versus the day-time idle periods.

Auto-brightness off (medium and high manual settings used while indoors / outdoors)
GPS off except when using maps
Bluetooth off except when driving and making / taking a couple phone calls
ATK used to clean up
Off wi-fi on 3G during day-time idle periods plus gaps around them.

Still suggest you kill ATK and as previously suggested, run the battery all the way down. Run the battery down to see how much time you gain below 15%.

Some batteries (I have the stock 1500, Andida, and Mugen) have different discharge profiles. ie They'll hang above 40% forever then drop like rocks (Andida), or they'll show consistent discharge (stock), or they'll drop rapidly to 50% and coast the rest of the day (Mugen).

Either way, if you're getting through most of the day above 40%, I consider that a win. Thanks for sharing and testing.

 

[dzar]

Here's my "yesterday" submission. It was an odd day for me. I spent about 25% of the day in an inside lab where I had no cell reception. This kills battery life as the damn radio keeps trying to connect. This happened in the morning which is why I went from 100% (can't see it) to 70% in about four hours. Anyway, even from 12-24h I only went from about 70% to 10% and you can see I beat on the CPU at times. Will post every few days to see how this goes. It's really pretty good, in my opinion. I've experienced worse battery life in other smartphones I've had, recently.

 

[pingpongboss]

Here's my "yesterday" submission. It was an odd day for me. I spent about 25% of the day in an inside lab where I had no cell reception. This kills battery life as the damn radio keeps trying to connect. This happened in the morning which is why I went from 100% (can't see it) to 70% in about four hours. Anyway, even from 12-24h I only went from about 70% to 10% and you can see I beat on the CPU at times. Will post every few days to see how this goes. It's really pretty good, in my opinion. I've experienced worse battery life in other smartphones I've had, recently.

Wow 16 hour battery life. That's pretty good

 

[pingpongboss]

Wow I managed to get my own 16+ hours of battery life. The black block in the middle is when I forgot to turn Monitoring on.

This is right after I rooted (and wiped) my Evo. So some app must've been going crazy to cause the 10 hour battery life.

 

[metchick01]

I am super new to android so I am hoping you all can help...

I checked my Battery Usage and the screen say 98% to Apps and 2% to cell stand by. Is this normal? If not, what should I do?

Thanks for the help in advance!

 

[pingpongboss]

I am super new to android so I am hoping you all can help...

I checked my Battery Usage and the screen say 98% to Apps and 2% to cell stand by. Is this normal? If not, what should I do?

Thanks for the help in advance!

Hmm not normal. Did you just unplugged the charger? That might explain why.

 

[metchick01]

No. It now says 96% Android system 2%cell stand by and 2% phone idle

 

[pingpongboss]

No. It now says 96% Android system 2%cell stand by and 2% phone idle

Still not normal... Get the Spare Parts app from the Market and look inside Battery History. See if you can find what is causing Android system to go crazy.

 

[apollooff320]

No. It now says 96% Android system 2%cell stand by and 2% phone idle

that's because you just took it off of the charger.

 

[dzar]

Another day... Not shown but I started at about 7 a.m. That's 17+ hours and I had 4G and bluetooth on all day (note that bluetooth is a dog when the phone is not in standby... it was unpaired almost all of this day which I also think matters). I only get 3G at my office which is where I took this screen shot and I've turned bluetooth off, now, also. Today I see how far I can go... I'm going to push it!

 

[pingpongboss]

Another day... Not shown but I started at about 7 a.m. That's 17+ hours and I had 4G and bluetooth on all day (note that bluetooth is a dog when the phone is not in standby... it was unpaired almost all of this day which I also think matters). I only get 3G at my office which is where I took this screen shot and I've turned bluetooth off, now, also. Today I see how far I can go... I'm going to push it!

Pretty good considering the CPUs keeps hovering between 10-30%

 

[Neeko18]

ill give this a try today. For some reason my CPU was at 100% running at 1ghz when i started the app. ill do a full days test tomorr and play with app today.

 

[Zippydo]

Great thread. I followed some advice from that link you posted a few days ago. I've now installed the SystemPanel app and have it monitoring today. Yesterday was really my first full day without a task killer app running. Un-plugged from charger around 6:45am and, when I was going to bed at midnight, it was at 7%. So, it got me through the day. I was more concerned with it lasting without a task killer. Given all the debate around it, I'm now going the route without it.

Again, THANKS for the thread. Good stuff!

 

[dzar]

I will post graphs later, but I had 16+ hours of use and over 30% battery left when I plugged in last night. I've seen 16+ hours but only 5% or so left in the past. The big difference, yesterday, was I had very good cellular signal all day. Turns out my office is a bit on the low side so when I'm at work I spend a good amount of time with 1-2 bars, only. Seems that's the big "sucker" as I used GPS (a bit), some 4G, Bluetooth and several voice calls along with email and web work. I didn't try to conserve battery and it's doing just fine.

 

[Zippydo]

I'm actually getting bad battery performance today compared to yesterday. Only thing different is the monitoring. I haven't really used it any more or less. Maybe a little more web browsing, but nothing significant.

I'll repost late once I hit the red just to compare.

 

[dzar]

I'm actually getting bad battery performance today compared to yesterday. Only thing different is the monitoring. I haven't really used it any more or less. Maybe a little more web browsing, but nothing significant.

I'll repost late once I hit the red just to compare.

Looks like something is running 30% cpu time in the background... Is see GPS is on... do you have mapping or something running? I've had things running in the background that had no business doing so and that killed the battery. Keep CPU low and you're home free

 

[Zippydo]

Looks like something is running 30% cpu time in the background... Is see GPS is on... do you have mapping or something running? I've had things running in the background that had no business doing so and that killed the battery. Keep CPU low and you're home free

GPS is running, but it was yesterday too. I havent launched anything crazy needing it and have the weather widget polling at 3 hour intervals. Ill see how the rest of the evening goes. I made it to midnight last with 7% left. Ill check the running apps CPU use later too.

 

[snowscum]

I am super new to android so I am hoping you all can help...

I checked my Battery Usage and the screen say 98% to Apps and 2% to cell stand by. Is this normal? If not, what should I do?

Thanks for the help in advance!

I also have this. And I havent had it on a charger all day.

 

[Zippydo]

Well I ended up putting the phone on the charger while I took a 20 minute nap. Battery charged up to almost 62% in that time frame (odd IMO, yours?)

While I was teaching my Zumba class, CPU usage was actually really low. I then went on a bike ride with SportyPal running. CPU was at 100% for almost 40 minutes (ouch).

What do you guys think? Is there anything running here that may be out of sorts or is it pretty normal. My high usage earlier in the day may have just been caused by me going in and checking stats in SystemPanel maybe. I'm bad and fidgety with leaving new apps alone.

 

[dzar]

...I then went on a bike ride with SportyPal running. CPU was at 100% for almost 40 minutes (ouch).

If you look, SportyPal used 40 min of CPU! It ran your phone at full power the entire time. I'd check with those folks to see why. Maybe that's what it does, in which case you better charge up before a ride and not go more than about 2-3 hours at a time.

SystemPanel is not a hog... I use it all day long to track stuff as I'm learning.

 

[Zippydo]

Yeah. SportyPal uses GPS and Google Maps to track your workout. So yeah, GPS and 3G data all at once is going to chew the battery like it was just an appetizer.

It's stated it's a hog so I did expect that. I also wanted to test it analytical software just to see.

 

[dzar]

Here is my history, today... after about 16 hours I'm at 30% battery life, left. Today I did 10-15 minutes of GPSing, a 1-hour phone call (with 2-3 bars, at most) and some Google mapping aside from my usual email reading/sending. I'm happy.

The droupout around 9 a.m. is when I was moving my I/O phone over to my account and there was a power cycle before the update.