Bravo ! Bravo !
rich c, Thomas Jaszweski, Browneye, HarryS, Ebiker01
And thank you !
To rich c and Thomas Jaszweski :
Indeed, the multimiter voltage is 54.4 V
To Browneye :
Checked display settings for voltage: it’s 48 V , my battery is 48V
Battery lead after full charge is 54.4 V ( i.e...