If Windows gets bad battery life on MacBooks then that's an indictment of Apple's windows drivers.
Just one poorly written driver can ruin your battery life, and that's a place where the MS "hardware manufacturers write the drivers for their hardware" model really falls down - there are Windows laptops where you can nearly double the battery life by fixing the touchpad driver, or the webcam driver, or, .... In theory a manufacturer/integrator should be auditing the drivers they're shipping and making sure the whole thing works together. Maybe the signature edition programme will improve this.
Just one poorly written driver can ruin your battery life, and that's a place where the MS "hardware manufacturers write the drivers for their hardware" model really falls down - there are Windows laptops where you can nearly double the battery life by fixing the touchpad driver, or the webcam driver, or, .... In theory a manufacturer/integrator should be auditing the drivers they're shipping and making sure the whole thing works together. Maybe the signature edition programme will improve this.