Reading random laptop review[1] claims to get >14h usage with 55 Wh battery, putting the average below 4W. Of course what constitutes normal usage varies, but I

Reading random laptop review[1] claims to get >14h usage with 55 Wh battery, putting the average below 4W. Of course what constitutes normal usage varies, but I'd guess modern laptops would easily halve the energy consumption of your vintage one. And Apples new M1 laptops are yet much more efficient. [1] https://www.notebookcheck.net/Razer-Book-13-Core-i7-Laptop-Review-Like-an-XPS-13-But-Faster.508474.0.html#toc-energy-management https://www.notebookcheck.net/Razer-Book-13-Core-i7-Laptop-R...