skipmac, like your bladder explanation , it's exactly what happening
afkasap, in your case charging
might take somewhere between 10 - 20 hours,
simply because even smart chargers are voltage controlled and over 13 volts, charging current
is much more limited.
Wrong perception: if the battery
is relatively charge faster, it is not a good charger
or good battery
, but it's partially lost
its capacity and soon ready to dispose .
capacity creating higher internal resistance and and full charging voltage is reach much faster, total capacity is much less/