Newbie tips: Suzuki 12 v quad racer by motiontrendz

[bteevan]

Hi guys newbie here. Got gifted 2 Suzuki quad racers 12 v with no batteries.

Replacing the stock seems expensive at $70, and found this site. Thinking I am them up to 18v while I am at it.

Suggestions?

Thanks in advance.

Ps I am handy. Sheet rock, change my cars oil, and basic light fixtures and switches.

[bteevan]

Thanks so much. Just bought the batteries. Will go to Home Depot for the fuses and wiring

[bteevan]

I am thinking I cut a hole in the bottom of the battery compartment to fit the 6v
Added a pic.

[bteevan]

Hi guys thanks again - batteries come this week so i am excited.

Here is a picture of the wiring inside. I downloaded the definitive wiring chart, but admit i am not sure which component is the board that i wire the new batteries into.

If i am of with reverse being 18v, can i just wire the batteries in line?

Any idea which of these i wire the new batters into?

Thanks!