120V kids Razor Dirt Bike.

[ForceFed86]

Had planned on the typical 72v build but found a few of these 120v mower batteries cheap. Went with a pretty huge fork lift KLB kelly controller and wired up 2 mower bats in parallel. Had to limit the amps to around 40 and reduce the motor speed. Really needs a couple more batteries and gears so I can crank it up. But Its a violent little ride! topped it out at 42 with the factory gears.

https://youtu.be/rur_9E17ltY

https://youtu.be/xKZbhfLe-n8

 

[EpsilonZero]

Did you swap out the motor yet? You could definitely increase speed there too.

 

[ForceFed86]

I did. It's the cheap china brushless 72v 3000w motor. They are about $80 shipped, and are a direct bolt on for the most part.

 

[EpsilonZero]

Are those two batteries getting about 12 minutes of run time? Looks like you could easily fit two more in there.

 

[ForceFed86]

Depends on how hard I am on them. I got roughly 5 miles being extremely mean to them. Was trying to stress test and overheat the motor. Outside case got to 121* and the battery and controller were at 66*. The batteries were $98 open box deals (basically half price). If anymore like this pop up I'll be sure to grab them. I think 1 more will fit easily. Unfortunately I can't just stack 2 more on the existing packs. I did plumb in an extra Xt90 for future batteries.