I have now replaced my numax batteries with haze 110 ah (c/20) agm ones.
Supplied by Dragon Electric Vehicles, they have a c/1 capacity of 66 amp hours.
These batteries have added 9% to the total wieght of my city-el if you include me,
and yet range has gone up to 45 to 50 miles.
The ammeter which I have now fitted shows a maximum discharge of about 100 amps,
at this rate the voltage sag is noticeably less.
I just hope these haze batteries last alot longer than those numax ones.