oups need additional triac
need to add either scr or triac to control the ac charger
the scr is turned on by by the 4n26 (opti 1) then turned off when the relay contcts open due to reaching desired charge.
if connected as per schematic, the ac charger will be on all the time until desired charge is obtained thus opening the relay 1 contacts.
the ac charger only comes on when battery falls below 10 volts.
the solar charger comes on when batteries fall below 12v
both voltage trip points are adjustable.