Fremgangsmåde til vurdering af batteritilstanden i batteriunderstöttede fotovoltaiske strömforsyningsanlæg

摘要

The method involves automatically acquiring a residual discharge current discharge characteristic for a charged battery first put into operation and connected to the supply system in a stepwise discharge cycle after disconnecting it from the supply using a control unit. The discharge cycle is repeated at fixed times to record the current discharge characteristic for the residual voltage.