Tablet [Q] Samsung Tab 3 7.0 SM-T210 firmware

I have an question I own the samsung galxy tab 3 7inch wifi only tablet it,s currently on rocket tab 3.1 firmware with black hawk kernel flashed
i have the european model
Now is my question can you install other countries firmware as sample i have the dutch (the netherlands) stock firmware can i flash the us firmware
or the uk firmware thru odin so that i have the us or uk version on my tablet.
because i have read that those two firmware have better battery life with stock dutch firmware i can,t use the battery for more than 6hours and then i must charge it because i then have left nearly 13procent of battery.

this is also on rocket tab 3.1 i can,t use my tab for more than 6 hours and is then also empty.

so if anybody can help me or answer my question i would be happy for it