Since ios 6.1 upgrade, less battery duration!

Since the upgrade to iOS 6.1, the battery of my iPhone 4 last less as 8 hours without charging.
I have seen, that the 3G is less stable and that the battery discharge much quicker when there is less or no network (gsm, edge or 3g).
Have you such experience ? What could I do to prevent that without plane (offline) mode ?
Thanks.

Hi,
Same problem here.
Updated to 6.1 2 weeks ago.
Since yesterday battery is only lasting around 8 hours.

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Let charge for at least twenty minutes, then see if it starts normally.
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http://support.apple.com/kb/TS3281
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http://support.apple.com/kb/HT1766
Thank you for using Apple Support Communities.
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When will you fix battery issues on ios 5.1.1? I have the same settings but 85% less battery life!!!

I have read many tips about what to do for increasing battery life. However
I hav the same setting with ios 5.1.1 that I was using with the previous
version (ios 5.1) but with 85% less battery life time. It is so frustrating because this
issue come back every 2 update : one killing your battery and the second
to fix this, and it starts again... I am really sick of this.
I am using an iPhone 4.

Hi All – I have also experienced the battery drain issue on upgrade to 5.1.1.
Like many on the forum I have tried ALL suggestions to resolve this issue, none of them have resolved the problem that Apple owners seem to be experiencing, it’s not in our minds as some suggest. My iPhone 4 and iPhone 3GS are working a treat under 5.1.1, in fact I believe the 3GS is running better than under 4.3.x.
However I do think I have tracked the problem down, which I will document here, but first a list of the things I’ve tried:
- Fully discharge battery to <5% and then back to 100% and leave charging for 3 hours after
- Turn off all notifications
- Turn off all location services
- Turn down brightness
- Turn off ALL iCloud services (effectively delete the account)
- Reconfigure email account to ‘MANUAL Fetch’ only
- Factory restore to fresh 5.1.1 from within iTunes and then restore from back-up
The only thing that stops the battery discharging at around 5% every 8 hours is turning off Wi-Fi during standby mode. Prior to 5.1.1 the iPad would drain maybe 1% every 24 hours in standby mode with Wi-Fi on.
Puzzled by this I did some research to understand what the iPad is doing whilst in standby mode with Wi-Fi on, so below is a trace from the iPad system log so that hopefully someone can look at this , identify the issue and hopefully fix it in a future ios 5.1.x release:
3 Jun 2012 12:02:43 - CommCenter [56] (Notice): Telling CSI to go low power.
3 Jun 2012 12:02:43 - kernel [0] (Debug): virtual void AppleRGBOUT::do_power_state_change(): fSoft: 0 fHard: 0 swapBusy: 0 fController: 0 -> 0
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANCore::powerStateWillChangeToGated(): cap 0x18000, stateNum 0, dev 0xc0a6a800 (this 1, provider 0)
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANCore::powerOffSystem() : Powering Off and sleeping
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANCore::powerOff(): fStateFlags(34a22)
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleSynopsysOTGDevice::handleUSBCableDisconnect
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedEntry(): Unicast IP filter enabled
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedEntry(): Enabled WOMP filter 0 (ID=103)
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedEntry(): Enabled WOMP filter 1 (ID=104)
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedEntry(): Enabled the '!ICMP' packet filter
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLAN Sleeping on BSS: @ 0xc0e90800, BSSID = 4c:17:eb:55:b6:eb, rssi = -57, rate = 54 (100%), channel = 11, encryption = 0x8, ap = 1, failures = 0, age = 34, ssid[ 9] = "SKY67278"
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANCore::powerOff(): Associated & WoW enabled, WiFi will remain up
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANBusInterfaceSdio::powerOff(): fStateFlags(0000002f)
3 Jun 2012 12:02:43 - kernel [0] (Debug): AppleBCMWLANCore::powerStateDidChangeToGated(): stateNum 0, pol 0xc0a6a800 (this 1, provider 0)
3 Jun 2012 12:02:43 - kernel [0] (Debug): (null)
3 Jun 2012 12:02:09 - CommCenter [56] (Notice): Telling CSI to exit low power.
3 Jun 2012 12:02:09 - kernel [0] (Debug): pmu wake events: wlan
3 Jun 2012 12:02:09 - kernel [0] (Debug): virtual void AppleRGBOUT::do_power_state_change(): fSoft: 0 fHard: 1 swapBusy: 0 fController: 0 -> 0
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleSynopsysOTGDevice::handleUSBCableDisconnect
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANCore::powerStateWillChangeToGated(): cap 0x8002, stateNum 1, dev 0xc0a6a800 (this 1, provider 0)
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANCore::powerStateDidChangeToGated(): stateNum 1, pol 0xc0a6a800 (this 1, provider 0)
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANCore::powerOnSystem() : Powering On
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANCore::powerOn(): stateFlags(24a23)
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANBusInterfaceSdio::powerOn()
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANCore::powerOn(): Tearing down WoW mode
3 Jun 2012 12:02:09 - kernel [0] (Debug): [9395.720807416]: AppleBCMWLANCore::systemWokenByWiFi(): Wake reason = wlan
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANCore::handleDataPacket(): Wake up packet received: Data
3 Jun 2012 12:02:09 - kernel [0] (Debug): Wakeup Packet: 40500428A49D4C18EB55B6DA08004500004e000040004011b948c0a80001c0a80005d3880089003 a67ef03e90000000100000000000020434b414141414141414141414141414141414141414141414 1414141414141410000210001 (92 bytes)
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLAN Woke on same BSS: @ 0xc0e90800, BSSID = 4c:17:eb:55:b6:eb, rssi = -60, rate = 54 (100%), channel = 11, encryption = 0x8, ap = 1, failures = 0, age = 34, ssid[ 9] = "SKY67278"
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedExit(): Disabled the '!ICMP' packet filter
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedExit(): Disabled the '!ICMP' packet filter
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedExit(): Disabled packet filters
3 Jun 2012 12:02:09 - kernel [0] (Debug): en0: BSSID changed to 4c:17:eb:55:b6:eb
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleD1946PMUPowerSource: AppleUSBCableDetect 0
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleD1946PMUPowerSource: AppleUSBCableType Detached
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleSynopsysOTGDevice::handleUSBCableDisconnect
3 Jun 2012 12:02:09 - kernel [0] (Debug): AppleBaseband::resetDetectInterrupt with 0
3 Jun 2012 12:01:58 - CommCenter [56] (Notice): Telling CSI to go low power.
3 Jun 2012 12:01:58 - kernel [0] (Debug): virtual void AppleRGBOUT::do_power_state_change(): fSoft: 0 fHard: 0 swapBusy: 0 fController: 0 -> 0
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANCore::powerStateWillChangeToGated(): cap 0x18000, stateNum 0, dev 0xc0a6a800 (this 1, provider 0)
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANCore::powerOffSystem() : Powering Off and sleeping
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANCore::powerOff(): fStateFlags(34a22)
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleSynopsysOTGDevice::handleUSBCableDisconnect
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedEntry(): Unicast IP filter enabled
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedEntry(): Enabled WOMP filter 0 (ID=103)
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedEntry(): Enabled WOMP filter 1 (ID=104)
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedEntry(): Enabled the '!ICMP' packet filter
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLAN Sleeping on BSS: @ 0xc0e90800, BSSID = 4c:17:eb:55:b6:eb, rssi = -59, rate = 54 (100%), channel = 11, encryption = 0x8, ap = 1, failures = 0, age = 34, ssid[ 9] = "SKY67278"
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANCore::powerOff(): Associated & WoW enabled, WiFi will remain up
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANBusInterfaceSdio::powerOff(): fStateFlags(0000002f)
3 Jun 2012 12:01:58 - kernel [0] (Debug): AppleBCMWLANCore::powerStateDidChangeToGated(): stateNum 0, pol 0xc0a6a800 (this 1, provider 0)
3 Jun 2012 12:01:58 - kernel [0] (Debug): (null)
3 Jun 2012 12:01:24 - CommCenter [56] (Notice): Telling CSI to exit low power.
3 Jun 2012 12:01:24 - kernel [0] (Debug): pmu wake events: wlan
3 Jun 2012 12:01:24 - kernel [0] (Debug): virtual void AppleRGBOUT::do_power_state_change(): fSoft: 0 fHard: 1 swapBusy: 0 fController: 0 -> 0
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleSynopsysOTGDevice::handleUSBCableDisconnect
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANCore::powerStateWillChangeToGated(): cap 0x8002, stateNum 1, dev 0xc0a6a800 (this 1, provider 0)
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANCore::powerStateDidChangeToGated(): stateNum 1, pol 0xc0a6a800 (this 1, provider 0)
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANCore::powerOnSystem() : Powering On
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANCore::powerOn(): stateFlags(24a23)
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANBusInterfaceSdio::powerOn()
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANCore::powerOn(): Tearing down WoW mode
3 Jun 2012 12:01:24 - kernel [0] (Debug): [9360.861496125]: AppleBCMWLANCore::systemWokenByWiFi(): Wake reason = wlan
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANCore::handleDataPacket(): Wake up packet received: Data
3 Jun 2012 12:01:24 - kernel [0] (Debug): Wakeup Packet: 40500428A49D4C18EB55B6DA08004500004e000040004011b948c0a80001c0a80005a9a50089003 a91d203e90000000100000000000020434b414141414141414141414141414141414141414141414 1414141414141410000210001 (92 bytes)
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLAN Woke on same BSS: @ 0xc0e90800, BSSID = 4c:17:eb:55:b6:eb, rssi = -61, rate = 54 (100%), channel = 11, encryption = 0x8, ap = 1, failures = 0, age = 34, ssid[ 9] = "SKY67278"
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedExit(): Disabled the '!ICMP' packet filter
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedExit(): Disabled the '!ICMP' packet filter
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBCMWLANCore::configureWoWAssociatedExit(): Disabled packet filters
3 Jun 2012 12:01:24 - kernel [0] (Debug): en0: BSSID changed to 4c:17:eb:55:b6:eb
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleD1946PMUPowerSource: AppleUSBCableDetect 0
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleD1946PMUPowerSource: AppleUSBCableType Detached
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleSynopsysOTGDevice::handleUSBCableDisconnect
3 Jun 2012 12:01:24 - kernel [0] (Debug): AppleBaseband::resetDetectInterrupt with 0
These repeating messages appear approx every 30 seconds the wakeup packet contains the MAC addresses for my router and iPad, so one of them is misbehaving. This may be to do with how these have been implemented:
http://en.wikipedia.org/wiki/Wake-on-LAN
http://en.wikipedia.org/wiki/Sleep_Proxy_Service
Either way I believe this is the source of the power drain issue whilst in standby with Wi-Fi turned on, perhaps this could be a router issue and that is why the issue not hitting everyone post 5.1.1?
All the best.

Wifi problems ipad 3rd and Time capsule 4th generation since iOS 8 upgrade

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It works ... removing and reestablish the wifi connection works. Thanks ...

Since ios 6.1 upgrade, less battery duration!

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