hello Mark. yes the only ones i have are 90 farad. they have more than enough grunt for the little mower starter.
i have ordered some 30 farad 2.7 volt ones which should also be more than ample for this project as i want the 90 farads for my ride on mower starter.
the 30 farads should charge alot quicker too. these are about the size of a AA battery, so tiny. when i try them out, i will keep getting smaller ones until i get the lowest ones that will start the mower.
the 90 farads would kick over a small car engine.
if you have seen them coupled to a car battery then you know their potential. just awesome things they are.
