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How to Convert a 24V scooter to 36V - Dirty Method

Step 7Power On and fly!

Power On and fly!
I used my ammeter between the batteries and the controller -- this way I could monitor draw. It also served as a handy power indicator. .01A draw means the controller is on (the switch circuit is closed).

When you wire everything together -- connect the battery second to last, and the power switch last. It's also probably a good idea to do a "dry run"-- without the motor connected to the rear wheel (VIA chain).

Before powering on, make sure all connections are tight -- and insulated. The last thing you want is to accidentally short something.


Once your dry run is successful -- load everything into the scooter. I taped on my ammeter so I could monitor current flow


Results? Yes.

It's faster -- but it was a little slow to accelerate. My front tire has a leak, that keeps getting bigger. So that didn't help. But truly, much faster than the 24V variant I was running before :D

Proof of concept:
1. 24V motor appear to take the extra strain - likely shortening their expected lifetime
2. Gel Cells aren't too sensitive to Charging at 1.5A (just make sure the temps stay low)
3. This can be done within a few hours (except charge time - you'll want a bit longer)

Yes, I've been bit by eFever... I've always liked it, it's just reaching critical mass methinks.
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Author:trebuchet03
I'm an Engineer in San Francisco. Mass producer. Former Intern. Rapid Prototyper. Sometimes, I post Instructables. My Favorite number: 42 By profession - I am an energy engineer. I count electrons p...
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