In this video I detail how to upgrade a Razor MX650 with a new controller, 1800 watt motor, and 48v Lithium Ion battery. This is a step by step guide showing all parts of the build.

Battery
https://www.ebay.com/itm/224234158431
Motor/Controller
https://www.ebay.com/itm/232655170228
Throttle
https://www.amazon.com/dp/B01NB9ICPD?...
Junction Box
https://www.amazon.com/dp/B07DLZX69X?...
Velcro Straps
https://www.amazon.com/dp/B07SMD8QVH?...
Quick Disconnect for battery
https://www.amazon.com/dp/B096P29QN3?...

Contact Info
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