Cathode - The electrode in an electrochemical cell where reduction takes place. During discharge, the positive electrode of the cell is the cathode. During charge in a rechargeable battery, the negative electrode is the cathode.
Absorption - The taking up or retention of one material by another by chemical or molecular action.
Distortion (individual) - Ratio between the rms value of an nth order harmonic and the rms value of the fundamental.
Self-Discharge - The loss of useful capacity of a battery on storage due to internal chemical action (local action).
Blackout - A zero voltage condition lasting for more than two cycles. Same as a power failure
Voltage (float) - DC voltage applied to the battery to maintain its charge level. This voltage depends on the type of battery, the number of cells and the manufacturer's recommendations.
Current (float) - DC current that maintains the battery at nominal charge, corresponding the float voltage. This current compensates open circuit losses.