Removal of battery from my mercedes A class

Question

This morning i realised for some reason my battery was flat on my A class. I located the battery under the drivers seat/foot area and disconnected si that i could charge it indoors. Howerver, it would not budge from its place, despite not being connected or having any obvious clips holding it in,

What am i doing wrong and how do i get it out?

Answer 1

Look for two small bolts, one near the red positive terminal cover and undo it, then undo the other one. The battery should come out

Answer 2

maybe the clips are low down so its hard to see them, have a look with a good torch