iPhone battery drains quickly with cellular data

I'm a guy from India who got the 18 pro on the launch day itself, my first apple product. Here in India, cellular data is cheap compared to other countries that we use cellular data everyday, quite heavily. In fact, we get unlimited data while on 5G. But the moment I turn the data on, the battery drains so fast that if I took it off the charger at 100 in the morning, I'm charging it again around noon or afternoon. The android counterparts here obliterate the iphone in that regard. This is my first iphone and I'm already starting to regret it, what's a phone good for if the battery doesn't last?

For any apple devs or any people reading this, please consider optimising the phone in battery life as well, since it's well optimised in all the other aspects.

Also, compared to other countries, our weather is a little hotter as well, so if there is anything you can do on the software side to improve the cooling efficiency as well as the battery, I request you to do it ASAP. Because frankly, compared to the previous iPhones sold, these are still sitting on the shelf, with low to zero hype for the phone.

The measure of battery health deterioration/drainage is subjective and can vary depending on individual usage patterns. There is no universal standard to determine whether the battery health deterioration/drainage is normal or abnormal because it heavily relies on how the battery is used and maintained.

Protect & Prolong the Life of your iPhone's Battery:

Try to monitor Battery usage by iPhone Activity as shown below

What is shown under battery usage? Checking that would give you an indication of the usage behavior.

Background Activity
Notifications
Connected to Charger
Or any Other

Try some of these options too.

To prolong the life of your iPhone battery, you can follow these tips and best practices:

Optimize Battery Charging: Enable the "Optimized Battery Charging" feature on your iPhone. It helps reduce the wear on the battery by slowing down the battery aging process. You can find this option in Settings > Battery > Battery Health. About Optimized Battery Charging on your iPhone - Apple Support (IN)
Avoid Extreme Temperatures: Extreme temperatures, both hot and cold, can negatively impact your battery life. Avoid exposing your iPhone to excessive heat or cold, such as leaving it in direct sunlight or in a freezing car.If your iPhone or iPad gets too hot or too cold – Apple Support (UK)
Use Original Chargers and Cables: Always use Apple's original chargers and cables or certified third-party accessories. Low-quality chargers or cables can damage the battery and reduce its lifespan. Identify counterfeit or uncertified Lightning connector accessories - Apple Support (IN)
Avoid Draining the Battery to Zero: Charge it whenever the charge becomes lower than 20%. The rest is up to you when to charge. how long to charge, how often to charge, which adapter to use starting from 5W to 140W USB-C Power Adapter etc.
Optimize Display Settings: Adjust your display settings to optimize battery life. Lower the screen brightness, enable auto-brightness, and use shorter screen timeout durations. Adjust the display and text size on iPhone - Apple Support (IN)
Minimize Background App Refresh: Limit the number of apps allowed to refresh in the background. Go to Settings > General > Background App Refresh and disable it for apps that don't require real-time updates. Switch apps on your iPhone, iPad, or iPod touch - Apple Support (IN)

iPhone battery drains quickly with cellular data

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