quote: Stig
Photo please a little further away...to see its relative size.
1) Key on, motor off?
2) Motor at idle?
3) Riding at moderate speed?
Yes Stig, you are absolutely right, l should have said, why.
In my humble thinking l do see what my scooters electrical and charging system is doing at all times. (pls see pics)
1) key on ignition 12.2 V
means to me, ok, battery healthy so far
2) next 11.5 V during revving to start, good, does not fall under 10 V means battery fine
3) shows at idle and light on 13 V, fine too
4) then 13.9 during moderate revvs while riding
shows me my alternator is properly charging and more important, my regulator is doing its job keeping the current constant.
Of course its not a must have on a healthy and owner maintained motorcycle but is for me an additional check to see whether one of my electrical gimmicks is giving in or still behaving.
Happy riding from Italy, Ruffus