Ok well i wired up a dpst switch from autozone and.......IT WORKED!!!
No more interference what so ever...put switch on battery box.....when charging mode switch will be lit and flip switch to off and circuit disconnected from charger.
Many thanks guys for your help i greatly appreciate it
Name:  20150402_165747.jpg
Views: 158
Size:  35.9 KBName:  20150402_165758.jpg
Views: 188
Size:  36.4 KB