If you have a MX650 dirt bike, our OEM equivalent 36 volt battery pack for the Razor MX650 is a superb value. For one low price, you will receive three new 12 Volt 12 Ah batterieswith the wiring harness. Or you can upgrade your battery pack with high capacity 12 Volt 15 Ah batteries for an increased runtime of 25%.
The wiring diagram for your model can be found at the following links:

Razor MX650 Dirt Rocket Wiring Diagram (Versions 1-7)

Why buy replacement Razor scooter batteries from Monster Scooter Parts?
Monster Scooter Parts sells high quality sealed lead acid (SLA) batteries at affordable prices. Our battery packs use batteries from Universal Power Group (UPG), a leading supplier of battery and power related products in the United States for over 40 years. Based in Coppell, TX, UPG provides the OEM sealed lead batteries in critical applications such as medical mobility devices and equipment. If these batteries can meet the high standards set by the medical equipment manufacturers, you can be assured that they are of a higher quality than the OEM batteries provided by Razor, as well as the off-brand batteries sold by Amazon dealers and eBay sellers. All of our Razor battery packs are backed by a one year warranty. Compare our batteries to the shoddy, cheap, and unreliable batteries sold by our competition and you will see why Monster Scooter Parts is the right choice.

⚠ WARNING California Residents: Proposition 65 Warning