Is 30% battery depletion normal with 1 hour of constant use?

[tracerit]

Lately i've been monitoring my battery life usage with JuicePlotter and according to its graphs, my battery depletion seems to be 30% over 1 hour of internet usage over 3G (i get a good signal in my house too). Phone gets heated to ~38-40C as well. Is this normal?

 

[roothog]

No, 1% drop every 2 minutes is abnormally high. My guess is that you installed an application, perhaps a battery monitor, that's poorly written and is killing your battery. I don't have experience with JuicePlotter, but when I installed BatteryTime Lite, it was draining 1% every 2 and a half minutes. Removed the program, and everything went back to normal.

Start uninstalling programs until normal battery use returns. One of the uninstalled programs is then responsible for the drain. I'd start with removing JuicePlotter.

 

[tracerit]

the thing is when i'm not using anything, the drain is 2-3% over 6 hours which seems normal to me. it's only when i'm using the phone that it's just flat out plummeting lol.

i'm currently using for battery monitoring:
JuicePlotter
SystemPanel paid version
Battery Indicator
Spare Parts

 

[Caitlyn McKenzie]

If you're constantly browsing, that's actually probably nominal.

Do you not have wifi in your house?

 

[tracerit]

i do have wifi and will be testing/using that next.

 

[Caitlyn McKenzie]

Uh yeah, wifi uses MUCH LESS power than 3G data. Seriously, if you are ever around wifi, use it. Turn off the "disable after 15 minutes" option as well, the 3G modem will use more when on standby.

 

[dysung72]

I do have a similar battery usage pattern as OP. 3G or Wifi doesn't make much difference. Typical continuous web browing with not much of flash or other graphic intense in the sites, my battery goes down by 25 to 30% an hour. My idle battery usage is excellent also (2-3% over night). So it seems the rate of up to 30% use per hour is normal.

 

[clashcity74]

I have found that the less I keep tabs on my battery usage the longer it lasts.

 

[Robbie317]

I have found that the less I keep tabs on my battery usage the longer it lasts.

I have found the same.... It got pretty decent battery use but all the reviews that hammered the phone made me order a second battery even before the phone was released and then had me installing battery monitoring apps and ATK to kill back ground apps...

I removed most of that stuff and rarely use it at all.. I kept ATK but I use it manually from time to time.. It's not set to run and when I kill apps I kill ATK as well..

I now seem to get better battery life day in and day out just not watching it and don't even need the second battery but do swap it out from time to time and keep a spare one charged up and with me "Just in case"

 

[Kedar]

No because I play Gameboid for 6+ hours before the battery dies.

How's the battery after that first hour?
You could be affected by the trickle charge effect.

 

[RayStinkle]

Yeah this is about normal battery usage for constant screen on. WiFi gives much better battery though than 3g. It's a huge difference.

Actually just last night I did 6 continuous hours of browsing. Screen-on time was 5.5 hours, 6 hours since unplugged, 28% battery remaining. Started at 80 % though.All on WiFi. Using a Nexus one though.

Official Google specs: 5.5 hours continuous 3g browsing, 7.5 hours continuous WiFi browsing (or close to that). Though I think WiFi advantage is even better than that number from experience.

 

[ALBUG]

Uh yeah, wifi uses MUCH LESS power than 3G data. Seriously, if you are ever around wifi, use it. Turn off the "disable after 15 minutes" option as well, the 3G modem will use more when on standby.

where is that option located? i can't find it and i hate it when my wifi disconnects...

 

[roothog]

where is that option located? i can't find it and i hate it when my wifi disconnects...

Menu > Settings > Wireless & networks > Wi-Fi settings > Menu > Advanced > Wi-Fi sleep policy > Never.

It'll still occasionally disconnect.

 

[roothog]

I have found that the less I keep tabs on my battery usage the longer it lasts.

LOL, agreed.

 

[tracerit]

Tested it again and with WiFi its a 20% depletion within an hour which is acceptable.

I've also noticed that even though the phone only drains 2-3% when I sleep, that it'll drain quickly at about 9% the first 10-15minutes that I use the phone after wake up. This is pretty disappointing since it means the calculation isn't correct.

 

[roothog]

Tested it again and with WiFi its a 20% depletion within an hour which is acceptable.

I've also noticed that even though the phone only drains 2-3% when I sleep, that it'll drain quickly at about 9% the first 10-15minutes that I use the phone after wake up. This is pretty disappointing since it means the calculation isn't correct.

Over in the sticky thread on battery life, people who had the same fast drain after disconnecting from power claimed that a battery recalibration fixed it. Recalibration steps are given on about page 5 or 6 of that thread.

 

[RayStinkle]

Menu > Settings > Wireless & networks > Wi-Fi settings > Menu > Advanced > Wi-Fi sleep policy > Never.

It'll still occasionally disconnect.

so the evo has that bug too, where even though wifi sleep is set to never, it still disconnects once in a while while in sleep mode? i thought it was a nexus only thing. but guess its android in general.

 

[roothog]

so the evo has that bug too, where even though wifi sleep is set to never, it still disconnects once in a while while in sleep mode? i thought it was a nexus only thing. but guess its android in general.

Yeah, I notice occasionally that I've dropped back to a 3G connection and I have to manually reconnect the wifi. Sometimes, simply opening up the list of available access points will initiate the reconnect. Other times, I have to tap on my particular access point and tap connect on a popup.