From: none@no.no   
      
   On Fri, 17 Mar 2023 12:45:45 -0000 (UTC),   
   vjp2.at@at.BioStrategist.dot.dot.com wrote:   
      
   >How do you use diodes and capapcitors to switch a 4v power supply   
   >so it continuously charges a battery when not being used.   
      
   First, you must specify what type of battery chemistry we are talking   
   about. But I can't imagine doing it with just diodes and capacitors.   
      
   >keep nonvolatile settings   
      
   Depending on your specific application, a super capacitor might be an   
   option?   
      
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