From: whit3rd@gmail.com   
      
   On Friday, February 15, 2019 at 2:46:22 PM UTC-8, Andy wrote:   
   > Is this the right battery holder so that I get 3.7 volts?   
   >   
   > https://www.ebay.com/itm/5Pcs-Empty-1-2-4-Cells-Li-Batteries-w   
   Wire-Leads-for-18650-Battery-Holders/132730830743?hash=item1ee75   
   bf97:m:mBZqCocJbuoDRghrmatEjaQ:rk:17:pf:0   
      
   There's three models listed there; the 1-cell is 3.7v nominal (4.2V to charge),   
   the others (if I read the pictures correctly) are series-connected for higher   
   voltages.   
      
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