why is my battery drains so fast after os update on my windows phone?

[Windows Central Question]

After the OS update on my windows phone 8.0 to 8.10.15137.148 my phone battery drains so fast (even in flight mode it hardly give my 04 hours of stand-by lifetime)
Please help

 

[oviedofreak82]

What type of phone do you have? You will need to join the site in order to reply to this thread.

 

[Chintan Gohel]

After the OS update on my windows phone 8.0 to 8.10.15137.148 my phone battery drains so fast (even in flight mode it hardly give my 04 hours of stand-by lifetime)
Please help

Can you remove the SIM card and test?

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