WiFi when connected to a network sucks my battery dry in 8-10 hours (even in standby)

Discussion in 'iPhone Tips, Help and Troubleshooting' started by dbell, Jul 11, 2007.

  1. dbell macrumors member

    Jul 11, 2007
    As the title states, with WiFi off or when I am not connected to a WiFi Network the phone can last 2+ days without a charge. When I have WiFi active and it is connected (at home) it last only about 8-10 hours? Is this normal? Does the connection stay active even when the phone is in standby and no applications are active?
  2. yayaba macrumors 6502

    Apr 24, 2007
    San Francisco Bay Area
    Wifi is going to be a bettery drainer no matter what. When you're not connected to a network it still has to scan the surrounding areas to find a network.

    If you aren't going to use it, just turn it off. Do you need it always on?
  3. dontwalkhand macrumors 601


    Jul 5, 2007
    Phoenix, AZ
    Thats how it is with any Wi-Fi enabled device, not just phones. You turn it off yourself when you don't need it.
  4. Educ8r macrumors 6502a


    Jul 2, 2007
    4th largest city in the USA
    I've had the same issue
  5. digduggler macrumors 6502

    Jul 2, 2007
    Totally. One day with it on, two days without (with moderate to heavy use).

    It is easy to turn on, so just leave it off.

    So far the biggest things to save battery (IMO) appear to be:

    1) WiFi off
    2) WiFi off
    3) WiFi off
    4) Minimize phone use (hoard those rollover minutes!)
    4.5). Brightness setting (get as low as you can comfortably bear)

    The irony of 4 does not escape me.
  6. mitchlandry macrumors member

    Jun 14, 2007
    I'm not seeing the sam thing. Maybe the battery meter on mine is incorrect or something.
    I leave wifi turned on, at work from about 7:30 - 5 with email check into exchange set to 15 min. When i leave to head home my battery meter is at about 1/2.

    this also includes some phone usage, browser usage and the occasional demos to coworkers.
  7. CybrMike macrumors member

    Mar 16, 2006
    If you turn your Email check to manual your battery will last for a couple days instead of just one.
  8. mitchlandry macrumors member

    Jun 14, 2007

    I understand that, i was just pointing out that I get a good bit of use with wi-fi left on and email check set to 15 min, at least in my opinion. What i really need is activesync, since every 15 min option sucks, but don't know how that would effect the battery usage.
  9. applehero macrumors 6502

    Jun 12, 2007
    29º 25' 26"N, 95º 29' 36"W
    Mine doesn't do this. I have my wifi on all the time at home and it doesn't drain the battery at all overnight. I leave it unplugged with wifi on and it still has a full charge come morning.
  10. Deathknight macrumors newbie

    Jul 5, 2007
    I have not experienced this either. I haven't turned wifi off yet and have had no issues with my battery life.

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