I had exactly the same problem with my 60cs cutting out due to loose batteries.
I have been using it off road on the KTM. I solved the problem by placing two of those foam ear plugs between the back case and the batteries.
I have since wired it up to the main battery. The units is mounted very securely with a touratec mount and two mild steel bars from homebase. see pic.
I have been using it off road on the KTM. I solved the problem by placing two of those foam ear plugs between the back case and the batteries.
I have since wired it up to the main battery. The units is mounted very securely with a touratec mount and two mild steel bars from homebase. see pic.