The serial number on the Model C2 can be found:
- On top of the seat pan under the seat cushion
- On the front assembly frame behind the footplate
- Inside the battery compartment
Example serial number: CB2134U567890
The serial number on the Model F can be found on the front of the battery support frame (remove battery to locate).
Example serial number: FB1234U567890
The serial number on the Model R can be found inside the battery compartment.
Example serial number: RA1234U567890
