It depends what you mean by that.
There are 2 distinctly different types of questions we regularly receive:
- the indicator changes value for a split second: our battery level indicator is overwriting the stock Android indictor, which sometimes manifests as “glitch” in the indicated value. Don’t worry about that – it is normal. And also it is done in a completely different way in the Android 11 update.
- the indicated battery level goes rapidly down, while the voltage indicated on the Power&Charge tab in the Carpe Manager app stays practically the same: that is the battery level calibration procedure, which is explained in this post.