Converting 36v Kuberg kids dirt bike to lithium batteries

[TRC18]

Seen this post from a couple of years ago.

We want to change ours also for more powerful lithium battery's but have a slight issue that we cant seem to find the perfect one's. We also want the option to fast charge them if that is possible.

 

[Hellion]

Greetings and welcome.

An ambitious project; who wouldn’t want the convenience and utility of lithium batteries, like an overgrown RC car (or bike). You have some space challenges for sure.