Sport mod battery placement?

[NAYRBNYLF]

Asking for opinions on battery placement. Primary trackConditions are slick through the middle with a Fast top groove.I'm thinking behind the driver?

[SportMod34]

Mine is on left side behind axle but I have a 12 gal. fuel cell. (Southern)

[UltimateRaceCars]

Put it where you have most of your lead, thats where you need the weight.