No, usually the effect of the Merus Ring is constant – it doesn’t discharge. As long as the particles in the water aren’t limited or stopped in their movement they maintain the oscillation.
To understand how the Merus Ring works it should be compared with a CD rather than a battery. You can listen to the music as often as you want to – it will not get „empty“ or „used up“.
Nevertheless for different reasons the effect can diminish over the time (like scratches in old CDs). If you have this impression please contact us, sometimes a change of place of installation can be necessary.