XPost: uk.rec.driving, alt.home.repair, uk.d-i-y   
   From: xenolith@optusnet.com.au   
      
   On 11/7/19 7:09 pm, Daniel60 wrote:   
   > Xeno wrote on 22/06/2019 9:03 PM:   
   >> On 22/6/19 8:00 pm, Brian Gaff wrote:   
   >>> Yes indeed, the nominal output of an alternator can be as high as 15   
   >>> volts,   
   >>> but even a fully charged car battery is only 13.8v as far as I know and   
   >>   
   >> A 12 Volt lead acid battery will show 13.2 volts straight off the   
   >> charger, about 2.2 volts per cell. That will drop to about 12.7 volts   
   >> after a day or so, a tad over 2.1 volts per cell.   
   >>   
   >> On the other hand, a vehicle's nominal *system voltage* is 14 Volts.   
   >> That's because the *alternator typically operates in the 13.8-14.2 range.   
   >>   
   >> Due to increasing loads on vehicle electrical equipment, manufacturers   
   >> were pushing to a nominal 42 Volt electrical system on cars. They were   
   >> to be equipped with a 36 Volt battery. It may not happen now.   
   >> https://en.wikipedia.org/wiki/42-volt_electrical_system   
   >   
   > Do Electric Cars have a 'standard' operating voltage?? Or does it vary   
   > from one manufacturer to another??   
   >   
   >   
   It varies. Anything up to 600 volts DC seems to be the norm at present.   
   BEVs have a regulator to drop those very high voltages down to whatever   
   voltage the ancillaries require - between 12V and 48V typically.   
      
   --   
      
   Xeno   
      
      
   Nothing astonishes Noddy so much as common sense and plain dealing.   
          (with apologies to Ralph Waldo Emerson)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)