iPhone 14/Plus Iphone 14 Battery

[kambel]

Hello, I am on ios 17.1.1, my iPhone is new with 100% battery ( original Charger) I find that the battery life varies from one day to another, sometimes it takes 7-10 minutes to lose 1% battery (using facebook instagram and browser), other days, I lose 1% after only 4 minutes of use (same use), is this an ios problem please??

 

[spikeymike]

There is no problem.

Apps can use more or less battery each day depending on what the app is doing.

Battery drain isn't the same everyday...