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Living Electric - What is a Watt?

posted Oct 1, 2015, 6:44 PM by Michael Braun   [ updated Oct 1, 2015, 6:48 PM ]
What is a Watt? 

750 watts is roughly 1 horsepower.

An average "healthy human" can produce a steady 0.1 horsepower for a full eight hour period, while a "first class athlete" can produce 0.4 horsepower for a similar period.  No more power is available without some rest and recovery. Thus at 0.4 hp the "healthy human" becomes exhausted within 10 minutes! 

The Yacht Scooter (Spec: Yacht.185.20.Flat.30.2) has a 48 Volt battery with a short term max 20ah controller.  This produces 48 X 20 = 960 Watts of power for short burst and 750 watts for continuous use over a duration of 30 miles at 20 mph.  Rest for a person 10-12 hours.  Rest for the Yacht Scooter is 2-3 hours.

Spec: Yacht.185.20.Flat.30.2
Yacht: Standard 
185 lb: Typical use weight limit 
20: Max speed in MPH 
Flat: Flat terrain  
30: Range in miles on flat terrain
2: 2 Hour charger 
Battery controller motor combination to achieve the above
48Volt X 15ah Lithium (LifePo4)
750 Watt motor
Model: X1 15 Amp Controller