You are definitely correct ni that the screen takes a bit chunk of the power, but it is my understanding that the cpu is taking the most. This is why you cannot

You are definitely correct ni that the screen takes a bit chunk of the power, but it is my understanding that the cpu is taking the most. This is why you cannot run x86 systems on battery power very efficiently. Look at it this way. Older laptops on x86 have the same screens as the newer arm based laptops, but the arm laptops have significantly more battery life using the same battery tech. This is definitely a sign that the processor is the biggest user of power in the system.