Your smartphone batteries can’t last forever. The lithium-ion powerhouses that run your phone have a limited life span. The longer you keep your device, the more your battery will worsen, and ultimately, it will have to be replaced.
Smartphone batteries don’t usually just die; there are small hints, mostly relating to the phone’s performance
like for example your phone battery drains quickly compare to than in past or your phone is charging slow, or it shutdowns without warning.

Let’s discuss in details
Phone won’t turn on or charge- the most obvious sign that you need to replace your phone battery is that your phone is not turning on, or is not charging, your phone has stopped working, it means the battery is not able to generate enough power for your phone.



The Phone is Getting Older - The average phone battery is designed to last from 300-500 charging cycles, so when it’s nearly 18-24 month since you purchased the phone, the battery is expected to be worn out.

Slow performance- You may notice that your phone is acting slow it takes time to respond to taps or prompts, the apps are taking longer than usual to launch



Phone battery is draining fast – If your phone’ battery is draining fast than compare to in the past and you are charging your device more than twice a day it means your phone battery needs replacement



Phone is Overheating - If your phone is getting hot more often, not only is that risky, but it is a sign that your battery might be counting the last breath.