manasgupta017 , via OnePlus 7T , Nov 18, 2020 : There is significant amount fo difference between the two buds , since the day of purchase I have always used them together. 4-5% difference in battery percentage between buds will be having that I was aware of but yesterday I used them completely till phone gave low battery notification for them then I noticed the percentage gap is more than expected.
SpearTony , Nov 28, 2020 : yes , at higher battery level the difference is between 2-4% when it comes below 40% then the difference increases upto 8 to 10% . I've witnessed the same . Hope they release a fix to resolve the same !
Lukas93 , Dec 2, 2020 : I got my Buds Z about 5 to 6 days ago. I experience the exact same problem that is stated above. The battery of my ear buds differs between 4-8% after an hours of use. The newest firmware update has already been installed. Any idea how to solve this issue? Maybe a manufacturing defect?
nobody69 , via OnePlus 7 Pro , Dec 8, 2020 : I face the same issue... I bought mine from Amazon... And Amazon is known to resell returned/defective products, I wonder if I got 2 different buds after some flashing or hard reset... Don't really know if that's possible just a shot in the dark
K1597934503479 , Dec 30, 2020 : I could see battery percentage differences in the OnePlus buds Z. @OnePlus team, could you please help us on this ? Why 2 buds are showing battery percentage differences of more than 6 to 7 percentage. Whether it's defect or anything . Please check and sort out this issue.
felix571 , via OnePlus Nord , Jan 1, 2021 : Same problem here - this is after 15 minutes of listening to music. Any updates here? Did anybody already get an replacement from OP?
Devansh.Gala , via OnePlus 6 , Jan 6, 2021 : I've been facing the same issue but here the left bud drains faster than the right one the difference is around 8 to 10% all the time, is this something serious, should i get them replaced?
felix571 , Jan 6, 2021 : I just started a replacement service through the oneplus shop. My nearest service partner now has to confirm the issue. After that I will get the buds replaced. Sadly, this will take 14 days minimum I think. In my case the left bud only has like 64% battery left after a 25minute run.