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04-16-2016, 05:55 AM
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Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,828
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Smart battery
Anyone try these? I like the construction method, a tad heavier than the other premium Li battery but it looks pretty durable vibration wise.
https://youtu.be/MEe_F9jY-cM
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7A Slider, EFII Angle 360, CS, SJ.
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08-12-2016, 10:46 AM
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Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,828
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Just an update, ordered one of these for start. No good, it will run everything fine until the starter is engaged. starter clicks and prop moves a hair then goes to open circuit  and then resets when all current is removed. Only thing I can think of is it is thinking it is a direct short and opens up for protection. it will make a good backup battery for stuff. Just ordered the EarthX ETX 900.
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7A Slider, EFII Angle 360, CS, SJ.
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08-12-2016, 11:10 AM
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Join Date: May 2006
Location: Houston
Posts: 2,010
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Sounds odd. Does your engine/starter work fine with conventional battery?
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Bryan
Houston
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08-12-2016, 11:36 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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Did you contact the mfg and ask why it drops out when you use the starter??
It shouldn't do that......perhaps the battery is defective?
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Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010 
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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08-12-2016, 11:58 AM
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Join Date: Sep 2008
Location: Palm City, FL
Posts: 315
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Which one did you get? They are only about 10C peak discharge for 5 seconds. May not be enough to crank the engine unless you get a 40AH or higher capacity one.
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08-12-2016, 12:57 PM
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Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,828
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I got this one, 20 AH, 200 5sec amp I did contact them by email a week ago, no response. I cannot recommend this company, and yes, a lead acid battery works fine to start and run, but, that is so 1950s 
http://www.lithiumion-batteries.com/...on-battery.php
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7A Slider, EFII Angle 360, CS, SJ.
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08-12-2016, 02:43 PM
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Join Date: May 2006
Location: Houston
Posts: 2,010
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Quote:
Originally Posted by bret
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The point of my question was to see if this was a new installation where the starter/contactor/switch may not have been checked out.
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Bryan
Houston
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08-12-2016, 04:23 PM
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Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,068
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The starter might draw more than 200 amps for a few millseconds when first engaged before the engine starts turning. The battery has instant Automatic Short Circuit Protection.
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Joe Gores
RV-12 Flying
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08-12-2016, 04:24 PM
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Join Date: Sep 2008
Location: Palm City, FL
Posts: 315
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The other problem is the max charge current. It's only 20A on that battery and your alternator can put out 60. It will probably also shut down when being charged at a higher current than 20A.
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08-12-2016, 08:50 PM
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Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,828
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its coming out, I have a PP certified 70 amp alt so I ordered the ETX 900 today.
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7A Slider, EFII Angle 360, CS, SJ.
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