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Re: How long can the battery run the compressor?
OK...
The compressor pulls 10.5 amps nominal at "full load" as per: http://www.drillspot.com/products/35..._Va cuum_Pump
The Battery will reach 1.6 volts per cell (full discharge) at a 1C (10.3 amps nominal) discharge rate in one hour as per http://www.batterystore.com/Yuasa/NP18-12.html
In gross terms, you can run the compressor continuously for a little less than one hour.
Disclaimer and warning: The compressor is going to get really hot if you run it continuously. I'm guessing that you will cook off the internal lubricants and seize the pump way before you discharge a full battery...
JMHO,
Mike
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Mike Betts
Alumnus, Team 3518, Panthrobots, 2011
Alumnus, Team 177, Bobcat Robotics, 1995 - 2010
LRI, Connecticut Regional, 2007-2010
LRI, WPI Regional, 2009 - 2010
RI, South Florida Regional, 2012 - 2013
As easy as 355/113...
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