Melee Damage Warframe Mods - Is There A Max%?

[SecretDragoon]

Right now I have like 5 70% Melee damage mods in my Warframe. Is there a limit when I start geting diminishing returns? Do these actually do anything? I am using Dual Zoren so I am not using any charge attacks and I hear Charged attacks do not get this mod bonus.

[f3llyn]

Probably some testing is in order but I assume that since there are charge damage mods and regular old melee damage mods that charge attacks don't get the bonus from the melee ones.