when I built my Egli, I struggled to find a secret place for the batterry, in the end I used a tiny one from a Honda 400/4, and housed it in a pair of engine brackets between the rear greabox mounts, it never gave me any kind of problem or life issues, and yes I was useing a starter motor, it surprised me and I realy did wonder why Moto Laverda fitted such a fii3?ng great thing in the first place.
CLEM