Paul_KD7HB:
Reverse the connections to either relay and you will be good.Paul
You could also use a full wave bridge instead of the TVS.
edgemoron:
You could also use a full wave bridge instead of the TVS.
How?
Hope this is legible, been a shaky day. 
Shaky here too, I use schematic capture to compensate.
I think this is your cct.
Battery absorbs the spike via two diodes.
.
Yes.
Shaky here too, I use schematic capture to compensate.
I would too if I had something to capture. 