I have a 24v system comprising 2 battery banks 1st (2x12v) engine and the
2nd (2x12v) domestic, each battery is approximately 100ah (ie 200 ah per
bank). The banks have 2 separate double pole switches, until now in order to
charge the domestic batteries there has been a link between the 2 negative
poles on the switched side of the switches. I brought a VSR (voltage
sensitive relay) to replace this link, but when I came to fit it I found
that it needs to connect between the 2 positives of the battery banks. So I
plan to buy another relay (an ordinary one), wire it in the link currently
joining the 2 banks, and then, use my VSR to switch this relay on and off.
Does that sound sensible or have I lost the plot.
Thanks