I have this same issue. I don't think it's caused by multiple batteries. I looked through the source code and it seems when UPower reads a 0W from`power_now` it assumes it's unreliable and then tries to calculate it by other means.
I have this same issue. I don't think it's caused by multiple batteries. I looked through the source code and it seems when UPower reads a 0W from`power_now` it assumes it's unreliable and then tries to calculate it by other means.