Just retested.
Had battery on charger most of the day.
Popped it in
At first all the lights come on fairly strong.
Hit the start button...nothing but a click.
Turn key off then back on lights are dim, buzz from the ignitor and then lights begin to fade.
Also tach needle is floating.
(Identical issue
http://www.triumphrat.net/twins-tech...ing-sound.html )
Hook jumper cables up to the car and no problemo.
So I think the solution to my problem is to install my wifes car as a sidecar.