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   rec.crafts.metalworking      Metal working and metallurgy      215,367 messages   

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   Message 214,098 of 215,367   
   Jim Wilkins to All   
   Re: Batteries - EV Conversion   
   01 Mar 25 22:27:44   
   
   From: muratlanne@gmail.com   
      
   "Bob La Londe"  wrote in message news:vq01gg$denj$1@dont-email.me...   
      
   My real insight though was, "What if we could use industrial motor   
   inverters instead of auto industry proprietary distribution inverters?"   
   --------------------------------   
      
   Would the regenerative braking when you decelerate be acceptable?   
      
   I've worked as electrical tech on some EV projects as well as the Segway.   
   The wiring for the prototype electric motorcycle for [mumble] was very   
   simple, battery to controller, controller to motor and throttle to   
   controller.   
      
   Writing this is competing with Bob Dylan at Newport on PBS, and he's   
   winning. OK, pledge break.   
      
   I needed expensive special tools to crimp the connectors. Since then I've   
   collected them at flea markets. Testing required recording voltages, motor   
   current and temperature. I mounted an industrial datalogger on the   
   motorcycle "tank", a laptop with connected DVMs would work in a car or   
   truck.   
      
   A sometimes overlooked problem with Lithiums is that the battery suddenly   
   stops drawing charge current when full, and the charger voltage may spike   
   up, especially with a solar controller. I burned out an inverter that way,   
   and am now experimenting with voltage-limited charging to somewhat less than   
   100%.   
      
   Bye, I aint gonna work on Maggie's farm no more.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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