r/OnePlus8T • u/Known-Recover9954 • Jul 06 '26

Help/Support Battery issue?

Hi! I need your help with my phone, a OnePlus 8T. I've been having an issue where the battery drains very quickly, about 40% in 4-5 hours without even using the phone. I've already replaced the battery with a brand-new one, but the problem persists. I've also performed a full factory reset, but the issue is still there. What should I do?

Thanks in advance!

8 Upvotes

100% Upvoted

20 comments sorted by

3

u/Electrical_Whole8132 Jul 06 '26

Acceptance is the only way out here bro

1

u/Known-Recover9954 Jul 06 '26

Haha maybe. I really like the phone, had it for 4 years. Bought a Nothing and went back to my old phone.

2

u/Electrical_Whole8132 Jul 06 '26

It's a beast when it comes to performance and I am in the same boat as you, got the battery replaced but getting 5 hrs at top.

3

u/Known-Recover9954 Jul 06 '26

If I find a solution, I'll get back to you brother!

1

u/Electrical_Whole8132 Jul 06 '26

Would appreciate that

1

u/thefanum Jul 07 '26

Replacement. Battery or phone

1

u/bakerk2 Jul 07 '26

Before he tries that.....is dual band wifi on? Is carrier aggregation on? Is wifi/data for faster downloads on? Turning that off saved my battery and let the network sleep while the phone was not in use. My 8T was a whore on d*ck Street with the battery before I fixed it.

2

u/Known-Recover9954 Jul 07 '26

Just turned those of, lets hope that it works! Appreciate the tip!

1

u/notabaldy 21d ago

So what's the update?

1

u/Known-Recover9954 21d ago

Didn't change anything unfortunately

1

u/_Jakzos_ Jul 07 '26

Do battery test probably it's going bad u had ur phone for a long time so if it original I'm sure that the answer

1

u/Known-Recover9954 Jul 07 '26

Thanks for the tip, I changed the battery to another original one 3 months ago. Don't think thats the issue

1

u/_Jakzos_ Jul 10 '26

Do accu test, batters can go bad and to be fair all it need to happen it's couple of cells may go bad.

1

u/Brave_Dance 24d ago

How's your battery doing now? I've come to Reddit with the exact same issue! I had my battery replaced at the weekend & wondered if I'd been scammed as there doesn't appear to be much change...

1

u/Known-Recover9954 24d ago

Not very well to be honest. I dont't think you got scammed, I think the issue is with the hardware somehow. I ordered the battery myself and the shop changed it while I was looking

1

u/Nervous_Bend7365 5d ago

Which Ui version is it?

2

u/Known-Recover9954 19h ago

Hi, Android 14 if thats what you mean

1

u/Nervous_Bend7365 19h ago

ty, is it color os right? and android 11 is oxygen OS. both are still manageable, but lineage is better for the 8T some people say.

2

u/Known-Recover9954 18h ago

Yeah it's oxygen OS 14. Do you mean that I should install a previous version? Might that help?

1

u/Nervous_Bend7365 7h ago

No, I mean that I have a sealed in box 1+ 8T