yo i had dat prob... first make sure dat the origional cell dont make contact wit the negative plate i used straight up electricle tape (best) den like d oda guy said u gots 2 mod ur controller.
fer who ever is interested i managed 2 get both cells in d chassis wit out chopin d car in 2.
1- drill out most of d lil screw hole u dont need it
2- get rid of d pedestal between metal contacts
3- its tight sqeeze now but if u sorta crush d batteries wit plirars it will fit. yo prabbit i give credit 2 u fer dis idea!!!
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