Very newb question. I have built a scooter based on a Razor Ecosmart. I am running a “1800w” 48v brushless motor and controller - Amazon Mophorn. Plenty of power and speed now. The controller is rated (by the label) at 33Amps. I am currently just running off the 7Ah SLA batteries (12V x 4). For lower speed, short cruises around the neighborhood it seems fine, but I did run it all the way down once trying to make back to back top speed runs. I would like to switch to a Li-Ion pack to save weight and increase range in case I want to ride for a bit longer. Most of the 48v eBay packs I have been shopping are 20-25Ah. Triple the Ah seems like it would suffice.
Two questions:
Is there a way to calculate the run time per Ah for the motor/controller?
The batteries I have seen that fit the physical space requirement and budget are usually rated at 25A constant discharge rate. Some are 30A but are 52v. My simple brain tells me the controller will be needing 33A, so those will not suffice. Any recommendations on whether 25-30A constant discharge rated batteries will do the job?
Two questions:
Is there a way to calculate the run time per Ah for the motor/controller?
The batteries I have seen that fit the physical space requirement and budget are usually rated at 25A constant discharge rate. Some are 30A but are 52v. My simple brain tells me the controller will be needing 33A, so those will not suffice. Any recommendations on whether 25-30A constant discharge rated batteries will do the job?