Strange readings were made before the instalation of new one. i didn't write it clear in my previous post. I agree with the peace of mind and testing battery, the electrician went for hollidays, i got to go to other, but was full. Week ahead i'll do that and tighten the chain.
It's new to me to run from mechanic to mechanic, ask you guys here, ask all my friends with bikes, get different information, opposite opinions... It's not just the matter of thrust nor competence, it's the wish to ride, bigger than anything else.
All these are new experiences to me, since i never put that much effort in repairing car, instruments that i play...
I'm sure you were all here...
If not, you are lucky!