iPhone 15 Pro Cellular connection eats half my battery life

[Hyloba]

After nearly a month of use I noticed my iPhone 15 pro getting me around 4-5 hours of screen-on time. It is a bit disappointing to me but my iPhone 11 pro was about the same.

Anyway, after remembering the excellent battery standby time of my iPhone 6s, I saw my 15 pro regularly dropping 10% or more per night, without seeing any explanation in the battery usage.

After some various testing I switched off cellular signal altogether (or turned on flight mode with wifi and bluetooth enabled), and only noticed a drop in battery of 0-2% per night, while my screen-on time increased to 9+ hours during the day. That is double or more, this is insane!

But can this really be normal behavior? I get around 1-2 bars of signal at my home or somewhere around -110dB last time I checked. I might not have the best connection at home but surely using half my battery to just connect to cellular seems over the top?

 

[Fat_Guy]

Try dropping from 5G to LTE.

 

[Hyloba]

Try dropping from 5G to LTE.

I don’t have 5g in my neighborhood, would this change anything?

 

[Reverend Benny]

Weak signal eats battery that's something i've noticed. And it doesn't really matter if its on 4 or 5G.
I would try and use another operator for a while if possible.

Its strange tho that it consumes that much battery if you are connected to Wifi all the time.
I know there is a setting somewhere that the phone can use cellular if you have weak Wi-Fi, maybe that's whats causing it?
Also, if you haven't, install the latest iOS version, hopefully 17.1.1 are being released today and that might fix some WiFi issues.

 

[Hyloba]

Weak signal eats battery that's something i've noticed. And it doesn't really matter if its on 4 or 5G.
I would try and use another operator for a while if possible.

Its strange tho that it consumes that much battery if you are connected to Wifi all the time.
I know there is a setting somewhere that the phone can use cellular if you have weak Wi-Fi, maybe that's whats causing it?
Also, if you haven't, install the latest iOS version, hopefully 17.1.1 are being released today and that might fix some WiFi issues.

Will be difficult as my operator is the most affordable around, with the most data. At home I am sitting next to the wifi router so wifi should be fine.
But it’s no problem for me to turn off cellular at home, I don’t get any cellular calls or texts anyway.

Thanks for the advice though!

 

[reppans]

Nvm

 

[Reverend Benny]

Will be difficult as my operator is the most affordable around, with the most data. At home I am sitting next to the wifi router so wifi should be fine.
But it’s no problem for me to turn off cellular at home, I don’t get any cellular calls or texts anyway.

Thanks for the advice though!

You shouldn't need to tho, wi-fi should be the preffered way of communicating. Could it be a case of that your routers covearage is not the best and that cellular takes over?
What iOS version are you running?