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12-21-2011, 12:23 AM
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Join Date: Oct 2005
Location: Melbourne, Australia
Posts: 1,868
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Garmin 696/796 amp draw.
I'm doing a power load analysis and I would appreciate it if any-one with a Garmin 696 or 796 can advise me how many amps the device consumes in continuous operation.
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You’re only as good as your last landing 
Bob Barrow
RV7A
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12-21-2011, 05:41 AM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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I have my 696 on a 1 amp fuse and it's never "blown", did not see a spec on it in the manual.
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Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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12-21-2011, 09:26 AM
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Join Date: Sep 2007
Location: WA
Posts: 988
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From my final load plan sheets...
I show .4 amp in my final load VP-50 planning sheets...
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Stephen
RV7 powered by a lycoming thunderbolt IO-390
turning a whirlwind HRT prop
with more hours flying than building... 2,430 on the hobbs!
ORCA Flight
Race 771
margarita!
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12-21-2011, 01:55 PM
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Join Date: Jan 2008
Location: KTCY
Posts: 643
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Quote:
Originally Posted by Walt
I have my 696 on a 1 amp fuse and it's never "blown", did not see a spec on it in the manual.
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I think that 4 amps is in there somewhere....
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Dave & Trina
RV-9A Flying  - 330 Hrs. Painted  Finishing the interior.
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12-22-2011, 08:39 PM
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Join Date: Jul 2008
Location: Plymouth, MA
Posts: 133
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The 796 hard wiring harness comes with a 3 amp fuse installed in it.
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12-22-2011, 09:26 PM
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Join Date: Oct 2006
Location: Glendale, AZ
Posts: 256
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Mine is 1.7 amps
That is with XM running and steady state like you would typically see in flight. I did not measure boot up. Bat was about 2/3 charged and some of that current would have been charging the battery. It is a 696
Quote:
Originally Posted by Captain Avgas
I'm doing a power load analysis and I would appreciate it if any-one with a Garmin 696 or 796 can advise me how many amps the device consumes in continuous operation.
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Roger Whittier
RV7A Quick Build, Tip Up
N1MY Reserved - Canopy finished - Wings mated, Engine hung, electrical 95%
Last edited by rwhittier : 12-22-2011 at 09:30 PM.
Reason: Add info
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12-23-2011, 06:20 AM
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Join Date: Jul 2005
Posts: 293
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Mine draws about 0.6A with the screen at full brightness, without XM.
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Tom Costanza
RV-7A Fuse
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09-15-2013, 09:42 AM
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Join Date: Dec 2009
Location: Savannah, GA
Posts: 89
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696 Power Draw
Just for reference, I had my VPX configured for a 2 amp draw for the 696 and it would trip every time. Setting it to 3 amps (which required a pin reassignment) and will let you know if it was successful. At least now, that circuit can draw up to 5 amps so it will be just a software change if it does not work, as opposed to assigning a different pin.
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09-15-2013, 11:24 AM
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Join Date: Feb 2011
Location: USA
Posts: 3,179
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The 795 has a 3A inline fuse. When it's internal battery needs a small amount of charging and the unit is operating at full brightness, I see 1.7A pretty consistently.
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09-16-2013, 01:29 PM
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Join Date: Dec 2009
Location: Savannah, GA
Posts: 89
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updates
Upon further investigation, the 696 was on a 1 amp circuit that I moved to a max 5 amp circuit that is set at 3 amps. I am sure it will not have any problems and was probable drawing just over 1 amp when it would trip (charging the battery).
Quote:
Originally Posted by R7237
Just for reference, I had my VPX configured for a 2 amp draw for the 696 and it would trip every time. Setting it to 3 amps (which required a pin reassignment) and will let you know if it was successful. At least now, that circuit can draw up to 5 amps so it will be just a software change if it does not work, as opposed to assigning a different pin.
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