Translations:DC system voltage/1/en

The DC system voltage chosen for the system will impact the sizing and selection of all other system components. Off-grid PV systems are typically built at several standard voltages - 12 V, 24 V, or 48 V - as all system components must be rated to operate at the same voltage. Each voltage has different advantages and disadvantages that make it appropriate for different system sizes and types. One limitation that is common to all energy storage systems with lead acid batteries is that it is not recommended to incorporate more than 3 parallel strings of batteries as it can create issues during the charging process - see Battery wiring. This constraint often determines the system voltage.