Yes sirs I am aware of the importance the key depth and battery size.

I know that people interested in this device wouldn't care much about the overall thickness anyway.

And adding thickness can have various benefits, adding battery, protection (maybe a rugged shell) etc. But I want to control it to a level that it doesn't be so bulky and feel stupid.

We already have 3500mAh here and the thickness will be controlled below the N950's

IMHO because if its size, making it thicker than that will feel chunky and like a brick, which is opposite to "Lauta"'s beautiful spirit