My source for such goodies is
www.powerletproducts.com.They have a wide variety of sockets, plugs, adapters,
extension cables, etc., are economical, and great folks.
The blurb on their products page is a worthwhile read.
They stock extensions up to 40", which is priced @ $10.95.
I called for a custom 72" version & they did it for ten bucks even!
The standard Triumph socket is "BMW" style.
Adapters are available to other styles.
Be aware that if you get their "military" style socket, the
cap is olive drab color.
I got one of those & painted it with gloss black Krylon
fusion ordered in via the local do it best hardware.
To patch to a charger, SAE style connector is good.
These are standard connections on Battery Tender, Yuasa,
and others.
