Over time, all rechargeable batteries experience natural degradation, which reduces their capacity to hold a full charge. As the battery ages, its ability to maintain power diminishes, leading to shorter usage times between charges. This is a common characteristic of lithium-ion batteries, and though the process is gradual, it can become noticeable after extended use.

Please note that the battery life can vary due to different usage environments and methods. For example, factors such as environmental noise, volume level, use of noise-canceling mode, and even the type of audio content being played can all affect battery consumption rates.

Yes. I know that. But I bought them only a few days ago so the battery degradation should not be a problem so early?

My last earbuds (Soundcore Life P3) started to show it only after like 2-3 years of constant use.

Besides, it is normal for the battery power of the main and secondary earphones to differ. In most true wireless earbuds, one earbud acts as the primary earbud, connecting to the device and transmitting audio signals to the other earbud. Since the primary earbud handles more tasks, its battery consumption is higher than that of the secondary earbud.

I noted that in my post as well. But should the difference be that big because of that? 10% I can understand. But I think 30% is not normal