From: none@none.com99   
      
   On 4/6/2025 10:06 AM, Jim Wilkins wrote:   
   > "Jim Wilkins"  wrote in message news:vstnuv$s7al$1@dont-email.me...   
   >   
   > For LiFePO4 the current limit is typically the Amp-hour rating or a small   
   > multiple of it, ...   
   > ---------------------------   
   > Which means that a 12V, 100Ah LiFePO4 could ideally power a 1.6 HP motor   
   > for an hour. 16 of them in the BMS maximum 4S4P configuration equals   
   > 25HP. I had such an engine in a Beetle, whose 0-60 time was 15 minutes   
   > while the tranny oil warmed up.   
   >   
   > That was a good excuse to avoid the Autobahn and instead wander through   
   > picturesque little villages on service calls. At the time the Autobahn   
   > was a squareish loop around the edges of Bavaria and cutting across   
   > diagonally was nearly as quick, plus a Jeep or Army truck wasn't much   
   > faster and I couldn't leave them parked outside a Gasthaus overnight.   
   >   
      
      
    From what I have found the only "economical" way to even make good use   
   of a mid voltage motor like the Hyper 9 is to buy used commercial EV   
   cells.  If I ran with something like a 48 volt forklift battery as Clare   
   Snyder suggest I could run multiple LiFePos in parallel, but for higher   
   voltages I'm stuck with used commercial Lithium Ion EV cells.  Well, new   
   cells/modules are available, but they price puts it back in new car range.   
      
      
      
   --   
   Bob La Londe   
   CNC Molds N Stuff   
      
   --   
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