help with replacement of batteries for project

[a_akku]

hello friends,
i have a doubt in general,
i am doing a bike EV conversion,i am using a club car's motor and controller for the project,the cart originally had 8 6V 150 Ah batteries,i am replacing them with smaller 4 12V 42Ah sealed LA batteries.

my doubt is will i be harming the batteries if i use the this way???
i mean will the motor draw more current while accelerating and can the batteries handle this???

any suggestion or advice is welcomed :)
Thankyou

[scottyb]

I may be wrong but ...... I don't know of anybody here who can answer your question from practical experience, because this is not a golf cart application & it is something we are not experienced with. If you want to email me I can redirect you.