The present state-of-the-art batteries have some pretty
amazing power-to-weight ratios. This is called "specific power". The
specific power of the A123 Systems cells we use in the KillaCycle is
about 4,000 Watts/kg (at 75 C.) This works out to 11.8 HP/lb. The
next generation of these cells (not in production yet, unfortunately)
are touted to have about 6,000 W/kg (17.7 HP/lb).

Cells this powerful move the weight reduction efforts over to
the motor and controller.

Bill Dube'
http://www.KillaCycle.com

 

 

yeah..I was kinda playing fast and loose with power/energy/whatever terminology....I know the diferrences though I have to ponder for a bit to remember which refers to what...

 

but in any case....when you are putting out nearly 20hp continous with a setup that probably only wieghs a hundred pounds for 30 minutes and might get up to 2 hours ...if you believe the article and video....thats pretty impressive....

 

smaller internal combustion engines for airplanes ...and 2 strokes at that....are doing good if they break somewhere between 1 and 2 pounds per hp....PLUS the fuel....which smaller 2 strokes guzzle down...sounds like this guys set up is getting close to that WITH the "fuel"....and no noise...probably a lot more reliable, cleaner, quieter, smoother, and just plain nicer....and probably with 50 cents worth of electricty versus AT LEAST a couple gallons of gas per hour for something similiar internal combustion wise...

 

and thanks for giving those numbers for your setup!

 

are those specific power levels for a continous drain done over and over for hundreds of cyles or is that for short burst and/or very few cycles?

 

Blll