From: ekblaw@vnet.ibm.com   
      
   Louis Ohland wrote:   
   > More guesstimation.   
   >   
   > NiCd charges between 1.4 to 1.5 v per cell. The efficiency of the charge   
   > is @ 83%.   
   >   
   > So... 26 / 1.4 is @ 18. 18 * .83 is just shy of 15.   
   >   
   > So... Maybe the 180W PSU battery is a 3x5 pack?   
      
   Probably not NiCd cells, sealed lead acid in a 24V stack (12 cells)   
   would be more likely.   
      
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