Float voltage. Float voltage is the voltage at which a battery is maintained after being fully charged to maintain that capacity by compensating for self-discharge of the battery. The voltage could be held constant for the entire duration of the cell's operation (such as in an automotive battery) or could be held for a particular phase of charging by the charger.
Definition of sup. : a mouthful especially of liquor or broth : sip; also : a small quantity of liquid pour me just a sup of tea.
Freebase (0.00 / 0 votes) Rate this definition: Sop. A sop is a piece of bread or toast that is soaked in liquid food and then eaten. In medieval cuisine, sops were very common. Sops were served with wine, soup or broth, and then picked apart into smaller pieces to soak in the liquid.