Bruno Vincent :
I want long battery life, will having 2 ssd instead of typical ssd/hdd combo help?
In general terms, an SSD consumes less power than an HDD.
But....
We don't know which drives in particular
How you use them
Or what the rest of the system is.
For instance, if your current HDD is the secondary drive, and you don't use it that much, and it spins down (as is typical)...you won't see much of a benefit.