Swampthing
Hey Swampthing, welcome! 👋 Thanks for the detailed post. A few things that might help you:
🔧 About controllers:
You won’t find a single controller that can safely run both your original 60V/1200W motor and a future 72V/3–4kW motor. Different motors need different current limits, hall sensor maps, and sometimes even different connectors.
If you want to keep the scooter running now → pick up a cheap 60V 30A controller just for your 1200W motor. They’re widely available and inexpensive.
When you upgrade to the 72V 3000–4000W motor, get the matching controller recommended by the motor seller, those systems are usually bundled because they’re tuned together.
âš¡ About RPM (speed vs torque):
Higher RPM rating = more top speed, but you’ll trade off torque (hill climbing, acceleration).
Example: 3000W @ 4800RPM will spin faster but with less pull than 4000W @ 3800RPM, even though the wattage is higher.
For a heavy enclosed scooter, torque usually matters more than max RPM.
💡 96V 5–7.5kW kits:
They’re overkill unless you plan a full battery upgrade too, and that gets expensive fast. If you’re on a budget, stick to 72V 3–4kW, which is already a big jump from stock.
✅ Suggestion:
Grab a cheap controller now to get the 1200W running again.
Plan your upgrade around the 72V motor + its matched controller later. Don’t try to mix them, it’ll only cause more headaches and cost.