Registered Forum User
Ducati Corse
Posts: 3,134
Join Date: Jan 2002
Location: notts
Mood: Bloo and Yellow.. and Red now ;)
Sounds like the battery has seen beter days. Drop a new, quality, one on her. Yuasa, Varta etc.
The SPS can be notoriously heavy on the battery, so trying to get away with a cheap one wouldn't be a wise move.
You could look at a high performance type like the Oddysey but they are big bucks.