DELL XPS13-2015 FHD Battery metering problem

Hi,
I have a XPS13 2015 FHD with 256GB and the battery measurement with the system or BatteryBarPRO was fine (8-10h).... but 256GB were not enough and I have purchased a TRANSCEND SSD of 512GB and replaced it..I reinstalled the system from Factory and now The batterybar and the system are measuring 3 4 hours which is really bad, the only thing is that they can be in the same 3h for an hour (so that´s not real.....)
Do you think the SSD change can make this? do the original SSD has something that manage the energy better?
Do you think can be other reason?
Thanks in advance for your help

 

Your battery life is probably fine. Because no, an SSD can't change battery life by that much (50% difference).

The way battery meters work is by measuring current battery capacity, and the rate of power drain. And based on that, it will give you an estimate of remaining battery life if the rate of power drain does not change.

But a laptop changes its rate of power drain all the time. If your laptop is processing a lot of data, and using the CPU a lot, then it will increase the rate of power drain. Whenever that data is finished processing, then the rate of power drain will drop.

So... the most likley reason you saw your battery life estimated at 3-4 hours is because your computer was doing something that had high power drain at that time. Let your computer settle down and finish whatever it was doing, and you'll see your remaining battery life jump back up to 9-10 hours.