Quite right, I've been  following these debates for many years. I have one 
point (or more of a question  really) that I can't really get over as to why 
to go with the AC over the DC.  
Can AC controllers function as voltage transformers  in order to allow the 
use of a higher voltage battery pack in order to  compensate for battery sag 
that might keep you from achieving max power and  holding that power to max 
set RPM in your controller  output.
For example a modern 300V input DC  controller can easily be set to an 
output voltage to match a lower motor voltage  requirements. 250V in 170V out 
for a 9". The advantage here would be to reduce  battery currents and keep 
them within their proper C ratings. This way you get  every Kw of controller 
you paid for right up to your set RPM.  
Does this make any sense or have I missed  something? Is there a lack of 
flexibility with AC or do I just have to plan  better?

Rick  Miller


In a message dated 12/26/2012 10:24:36 P.M. Central Standard  Time, 
[email protected] writes:
On 26 Dec 2012 at 18:17, Cruisin  wrote:

>  I guess the DC [motor] people saved a nickel and now  lost a dime.
> lets hear from some of the DC diehards 

Ah,  memories.  This takes me back to 1996!  Nothing like a good old  
fashioned EVDL AC vs DC debate.  ;-)

Maybe we can also revisit  the flooded vs AGM battery battle.  ;-)

David Roden - Akron, Ohio,  USA
EVDL Administrator

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