[Hackability] battery voltages in mobility scooters

Susan Werner heinousbutch at gmail.com
Wed Aug 29 04:05:53 UTC 2012


I'm working on a DC-DC converter / battery charger circuit with Liz to act as a
regenerative brake for mobility scooters, and it's an explicit goal for the 
design to be easily adaptable on different models. I've a question -- what is 
the highest battery voltage commonly used? I need this information in order to 
properly select the DC-DC converter controller and the power transistors for 
the DC-DC converter. I know 24 volts is a voltage that's used (two 12V 
batteries in series), but are there any mobility scooters that use higher 
battery voltages? Are there any that use voltages that are higher than say,
36 volts? The end goal is to have a model-agnostic regenerative brake 
controller that needs minimum customization (beyond, of course, desired 
voltage output) for each individual installation.

Also, if you'd like to get involved, let me or Liz know! 

-- 
Susan




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