Is it recommended to use battery Forklifts in 3 shift operation ?

I believe you have to keep 2 extra batteries per unit. so if we run 4 units needs 12 batteries. i think this will be a big hassle.

so is it advisable to use battery forklifts for such application or use LPG if possible ?

but if you use LPG the fuel cost will be high.

appreciate your comments,

Thanks in advance,