Poor Battery Life On iPod Touch After iOS 4 Upgrade – Issue Persists

Looks like it has been a long time since we talked about the battery issue with the recent iOS updates on iPod Touch. Back in September this year, we had written about an issue experienced by many iPod Touch users who had upgraded their device to the then latest iOS update.

The common complaint was that updating the iPod Touch to iOS 4.0 resulted in an overnight drop in the average battery life of the iPod. We had also suggested a temporary fix to the issue back then.

Now with Apple having released iOS 4.2.1, one may have assumed that such issues may have become a thing of the past. However, it looks like the battery drain issue continues to affect a significant number of iPod Touch users.

One common observation is that the Wi-Fi on the affected phones do not seem to be deactivated when the phone goes to sleep. Normally, the iPod Touch would only reconnect to Wi-Fi everytime it is “woken up“. But the Wi-Fi on the affected phones continue to stay active even when the device is in idle mode thereby draining battery life. The root cause for this could be an application – native or third party. But that is yet to be ascertained.

Have you been able to decipher it on your end? Let us know in the comments or join other folks in the deliberation on the Apple support forum here.

4 thoughts on “Poor Battery Life On iPod Touch After iOS 4 Upgrade – Issue Persists”

  1. AppStore will do that, but only for a period of time.

    If you start downloading a free app and turn the device off, the app continues downloading.

    Can an ‘off’ iPod touch connected to skype ring, if there is an incoming skype call? If so, then skype must be keeping the wireless active.

  2. An iPod touch is not a phone (4th paragraph above).

    I have a 2nd gen. iPod touch (16 gig) and am one of the hapless users who, when iTunes informed me I didn’t have the latest operating system and didn’t I want to upgrade, I automatically and trustingly said “yes”. After all, an upgrade must be better, right? But my touch was doing just fine with 3.1.3, and little did I know what the new improved iOS was going to do to it while bringing me nothing I needed or wanted! I want to go back to 3.1.3. I have posted several times on the Apple support forum.

  3. yep, i too had a rude awakening of disgusting battery drain once i upgraded, (not to mention losing my contacts and notes in that joke of a preemptive backup) and guess what? you cant go back to 3.1.3 either, apple wont authorize the install once you try. having a 2g model there is nothing for me in iOS4 except wasted drive space with features i cant use and no battery life. looks like im stuck with 2.1. thanks mr jobs, my first apple product has definitely been headache free, i think i’ll try the overpriced notebooks next.

  4. I upgraded to 4.2.1 and now my battery life is shot. I ran a test today. Turnoff all features then charged overnight. Took off charger at 6:45 a.m. put in standby, at 9:25 a.m. check battery 1/2 full, put back in standby. Check batter at Noon and it was red. Surely in standby with no usage it should run longer that 5 1/4 hours.

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