Get a 60 volt range extender: https://alienrides.com/collections/custom-lithium-ion-batteries/products/scooter-or-e-bike-range-extender-60-volt
Some tools that may be useful for this:
Drill: https://amzn.to/3vK5mo6
Drill bit set and punch: https://amzn.to/3ENlyJ6
Hex keys: https://amzn.to/3ESfWgF
Silicone: https://amzn.to/3vJszGQ
Blue Gaffers tape: https://amzn.to/3kczvqD
