u/Business-Acadia314

so i’ve had my iphone 15 since around the time the 16 was announced and ive never had a problem till now. about last week my phone updated and now my battery keeps going down pretty fast and didnt think too much of it but now its a problem. the phone will be at 100 and go down to 50 in 15 minutes the battery itself says it’s normal but looking at the percentage it’s clearly not good. i just need help to know if i should switch back to a older gen or switch to android completely. i just need help