OPZS AND OPZV BATTERIES

OPzS batteries

OPzS stands for German ortsfest Panzerplatte, Säure, meaning stationary tubular plate, acid. 

OPzS batteries are a type of deep-cycle battery commonly used for backup power systems and renewable energy applications.  OPzS is recommended for storing energy from intermittent supplies, such as wind and solar supplies for off-grid use.

OPzV batteries

OPzV stands for ortsfest Panzerplatte, verschlossen, meaning stationary tubular plate, sealed. 

OPzV batteries are very similar to OPzS batteries, with the only technical difference being that OPzV batteries are sealed. OPzV batteries are relatively maintenance-free, while OPzS batteries require the occasional top-up with distilled water.