Fast Charging and Battery Life: My Experience with the OnePlus 10T and Some Eye-Opening Insights

Hey everyone,

I’ve been using the OnePlus 10T for a while now, and something about its fast-charging feature has been bugging me. My phone supports 160W charging, which is insane—it can go from 0 to 100% in just 20 minutes. But here’s the catch: I noticed that my battery seems to discharge much faster when I use the fast charger.

My Experience

Recently, I decided to try something different. Instead of using the 160W charger, I charged my phone with a regular 30W charger, and guess what? My phone’s battery lasted much longer. It didn’t drain as quickly during the day, and I could actually feel the difference in how long I could use it before needing to charge again.

This got me thinking: Is the fast-charging technology actually delivering “quality” energy to the battery? Or is it just rushing to hit that 100% mark, giving us the illusion of a full charge when, in reality, it’s not as effective?

I’d love to hear if anyone else has experienced this. Do you think fast charging is worth the convenience? Have you tried slower chargers and noticed a difference? Let me know your thoughts!

Your battery did not last longer, it is 100% placebo. That’s not how charging and batteries work.

Will said:
Your battery did not last longer, it is 100% placebo. That’s not how charging and batteries work.

I’d love to hear a proper explanation about this, since none managed to give me an accurate explanation. What’s weird is by charging my phone with a regular charger, my phone battery managed to last longer than when I used my 160W charger. Any good explanation would be appreciated!

@Joss
The amount of energy that you put into the battery matters, not the speed you put it in. Think of it like a pipe: water flows faster with high pressure, but the total water transferred is the same. Daily use introduces too many variables (brightness, apps, etc.) to measure battery performance accurately. Fast charging can slightly increase battery temperature, which might influence performance, but it’s negligible in practice.

@Will
So it makes sense…well, Thank you for taking the time to explain, I appreciate it!

Is the fast-charging technology actually delivering ‘quality’ energy to the battery?

Unless you’ve discovered new physical laws, it doesn’t work that way.

Jordy said:

Is the fast-charging technology actually delivering ‘quality’ energy to the battery?

Unless you’ve discovered new physical laws, it doesn’t work that way.

He’s probably the kind of person who believes in healing crystals.

@Val
Making fun is smart, but do you have a conclusion for this?

Something you might have experienced: Some phones keep charging a bit after they hit ‘100%.’ If you unplugged the 160W charger earlier but let the slower one fully top it off, that might explain it.

Ash said:
Something you might have experienced: Some phones keep charging a bit after they hit ‘100%.’ If you unplugged the 160W charger earlier but let the slower one fully top it off, that might explain it.

Unfortunately, I did the same with both chargers. I guess it’s still a mystery, though your explanation seems accurate.

If you have root access, check the voltage and charge counter on the QCOM PMIC (10T uses PM8350). The data should be similar regardless of the charging method.

/sys/class/power_supply/battery/uevent

What you’re saying violates the laws of thermodynamics. It’s physically impossible.

Grey said:
What you’re saying violates the laws of thermodynamics. It’s physically impossible.

I’d love to hear a proper explanation about this, since none managed to give me an accurate explanation. What’s weird is by charging my phone with a regular charger, my phone battery managed to last longer than when I used my 160W charger. Any good explanation would be appreciated!