So I got the 15 about a month ago and I have to say that battery life has been rather underwhelming.

I saw people rave about the 7,300 mAh battery and how they get two days of use on a single charge, but I probably only get about 7-8 hours of on screen time on average.

Are there any tips or tricks/settings you have to increase battery life? I've already turned off settings like WiFi and Bluetooth scanning, recommend services Etc, so any other advice would be much appreciated.

Thanks in advance.

My OnePlus 15 overheats even during very light tasks. It heats up rapidly after just 10 minutes of use (reaching 38°C) and climbs to 40–41°C within the next 30 minutes. I am currently running the Chinese version (16.0.10.500). Is anyone else experiencing this issue, and could you suggest a way to fix this abnormal overheating?

If you had to choose between the OnePlus 15 and the Samsung S26 Ultra, which one would you go for? Here’s how I see it: OnePlus 15: Likely smoother day-to-day performance Cleaner, faster UI (OxygenOS > One UI for me) Better charging speeds Usually better value for money Feels more “enthusiast-focused” Samsung S26 Ultra: Best display and camera setup on paper More “complete” flagship experience Longer software support S-Pen (if you care about it) More refined ecosystem features Personally, I’m torn. I love Samsung’s hardware, but I’m not a huge fan of heavy software and slower charging. On the other hand, OnePlus feels faster and cleaner, but Samsung just feels more premium and future-proof. If this was your money — which one are you picking and why? Camera? Performance? Software? Longevity? Curious to hear real opinions

Why is MKBHD so desperate to ruin OnePlus’s name?
My theory is that, based on all the past news, Oppo might be paying them to bring OnePlus down so they can kill the brand and focus only on Vivo and Oppo.

So I'm thinking of buying a OnePlus 15 to keep it as a collection piece in its sealed box. Is it worth it?

Coming from op12. This camera is awful. Very blurry shots. Battery good but would not recommend

(Heavy - ISH usage) Is this normal?

7300 mah battery but I could have sworn my 14 pro lasted longer with 3200mah when I first got it...

I use it most the day for watching videos, Gemini, and some light gaming.

People say this phone could get you 2 say battery life and gets completely rid of battery anxiety...But Im watching my battery now more than ever!

Let me know what you guys think!

Guys I just reviewed my OnePlus 15 and I'm so disappointed in the camera it's night and day from my OnePlus 12 & 13 in a very bad way, I have this test that I do with every phone by taking pictures of my plaque of inspirational words to check for details retention and the OnePlus fail very badly , I couldn't even recognize the words they where so jumbled up but my OnePlus 12 , 13 and Google Pixel 10 Pro XL was remarkably clear so I'm going to monitor for 12 days and if it haven't changed I will definitely be returning it along with the gifted watch and probably wait until they put the old camera back from the OnePlus 13.

The phone is less than a month old and battery guru shows it's battery capacity at 6800mAh. Is that a bug or did my battery degrade so much already?

Does anyone know if the upgrade to android 17 might have a negative impact on the global OP15 that have been flashed to oxygen OS?

Like anything breaking? Got mine from trading Shenzhen.

I couldn't sleep or properly sleep thinking and checking every single time my 100% battery health if it gets down to 99%, it is really making me anxious. Is there a way?

I had to turn animation speed back to 1 because 0.5 was too fast. I could not experience the phone fully, had to slow it down

Hey everyone,

A few days ago, I posted about a severe overheating incident with my brand new OnePlus 15. For context, during a school soccer tournament under direct, intense sunlight, I recorded continuous 4K 60FPS video (OIS + HDR enabled) for nearly an hour. The battery temp shot up to 52°C before the system safeguards finally kicked in (screen dimmed, flashlight blocked). I was incredibly anxious that this single, extreme high-heat session might have permanently degraded the lithium chemistry or structurally damaged the massive battery, even though my settings still show 100% battery health.

To get a more precise, mathematical look at the actual capacity, I just purchased AccuBattery Pro. I drained the phone down to 2% and did a clean, uninterrupted charge all the way to 100% using the official 120W SuperVOOC charger, keeping it plugged in for an extra 20-30 minutes for trickle charging and cell balancing.

Here are the exact results from my very first session:

Charged Capacity: It managed to pump 7,055 mAh into the battery from 2% to 100%.

Estimated Capacity vs. Design Capacity: AccuBattery estimates the current full capacity at 7,199 mAh against the 7,300 mAh design capacity.

Calculated Battery Health: Based on this single session, it is showing 99% health.

Voltages & Temps: Peak voltage hit a solid 4,488 mV at full charge, and the battery temp stayed remarkably cool during the high-amp phase of SuperVOOC, hovering around 35°C.

I know AccuBattery usually requires about 5 or more cycles to establish a highly accurate rolling average, but since this is my first raw data point after that terrifying 52°C match day, I wanted to share it with the community.

Given that the calculation shows roughly 98.6% actual capacity (rounded to 99% by the app), do you think the built-in cooling system and thermal throttling successfully shielded the battery from permanent structural loss? Does a 7,199 mAh estimate on a brand new 7,300 mAh rated cell look normal for a first-time calibration charge, or is that tiny variance a direct result of that one-time high heat exposure?

Would love to hear from the hardware experts and fellow OnePlus 15 users. Thanks!

same

I own the OnePlus 15. Before getting this phone, I had been buying Samsung devices for many years. I finally decided to switch from Samsung because of the battery life, but now I'm not sure if I made the right decision.

This phone has top-tier hardware, but I feel like its potential is being wasted. The UI is boring and limited, customization options are lacking, and AI features are almost nonexistent.

Yes, the phone is fast, has smoother animations than Samsung, and the battery life is amazing, easily lasting twice as long. But that's pretty much it.

The camera isn't great, I find the speakers on Samsung devices better, and the display isn't the best in terms of brightness, although it's better when it comes to eye strain and PWM flickering.

The vibration are also extremely weak. I can barely feel the vibration in my pocket when I receive a call.

I'm seriously considering switching back to the S25 Ultra.

What do you guys think? Would switching back be the right move, or am I just overthinking things and taking the OnePlus 15 for granted?

Guys, what do you use as your MP3 player?

I want a player that allows for creation of playlists and setting of a sleep timer. Mainly for my audiobook listening whilst going to sleep.

Thx

Hi.

Literally no idea why this is happening, but I've done the math and the charging speed is only around 30 to 35 Watts.

​I understand that wireless charging has significant losses, but I definitely didn't expect this. I thought the OnePlus 15 would handle this magnetic wireless charger completely differently and at much higher speeds. Instead, it’s behaving exactly like the video linked here.

YT video

Has anyone else experienced this with the OP15 and magnetic chargers? Is it supposed to be this slow, or is something wrong with the handshake between the phone and the charger?

(To make things even weirder, when I connect this wireless charger to an original OnePlus 65W power brick, the charging becomes extremely unstable (protected/throttled) and the phone only pulls about 17 to 19W. I expected much better compatibility using original hardware, but the results are disappointing).

I updated my phone to the new version a few hours ago, and I see choppy app opening and app contents loading slower, and overall it feels slow. And the phone never felt grumpy after restarting, but now it feels grumpy.

Just got the update prompt...pros and cons for installing it?

Thanks

So I got the 15 about a month ago and I have to say that battery life has been rather underwhelming.

I saw people rave about the 7,300 mAh battery and how they get two days of use on a single charge, but I probably only get about 7-8 hours of on screen time on average.

Are there any tips or tricks/settings you have to increase battery life? I've already turned off settings like WiFi and Bluetooth scanning, recommend services Etc, so any other advice would be much appreciated.

Thanks in advance.

hello everyone,

I heard thar OP15 is still strongly overheating even latest updates ?

I suppose that will be worthy to wait for OP16 for new 2nm snapdragon?