fbpx

 

I have a 912ULS with a Silent Hektik regulator. I have been flying it for 1200 hours with no problems that I am aware of. I upgraded to a EarthX battery about 3 months ago. Last week I saw the battery light flash so when down a rabbit hole. The battery apparently is not getting fully charged by the plane, charges fine with the wall charger. In the plane there is 12-14A discharge for the first 10 minutes of flight then the amp meter goes positive for the rest of the flight. It probably has been doing this for a while and I never had noticed. After an hour flight today the battery was only at 13.3 volts. Should I assume the regulator is defective? What is the current regulator to have?


Walt

my blog; waltsrv12.com

  • Re: voltage regulator questions

    by » Yesterday


    The resting voltage of a fully charged EarthX battery is 13.3 volts.


  • Re: voltage regulator questions

    by » Yesterday


    Ken Ryan wrote:

    The resting voltage of a fully charged EarthX battery is 13.3 volts.

    From EarthX tech support.


    “I still think your charging system is not working properly. Our battery should be in the 13.8 - 14.5 volt range when the charging system is working”. 

    I measured 3.3 while the engine was running. 


    Walt

    my blog; waltsrv12.com


  • Re: voltage regulator questions

    by » Yesterday


    Hi Walt! Do you know what causes the 12-14Ah discharge which appears rather high to me. Has this been the normal level of current draw over the years or is that a recent matter? The installations I happen to know range between 6 and 8Ah. Perhaps you are looking for something else but a faulty voltage regulator.

    For better understanding, what the battery voltage towards the end of a flight „in flight“ (whilst the VR is supposed to charge, engine loud) and on ground with the engine quiet and power consuming gadgets being on (as in flight)? And what Amp-readings do you get for both?

    SH have upgraded their VR some time in the past when the lighter battery technology with higher Voltage levels reached the fields to suit their charging characteristics better. Which VR (product no.) do you use?

    Regards

    Peter


  • Re: voltage regulator questions

    by » Yesterday


    I think 14A is about right. There is a Skyview Touch, Garmin 696, each has their own GPS and A-DSB, nav lights, cooling fans, GRT-200 radio, it adds up. At the end of flight, engine running the amp draw is 0, the voltage is 13.3. When the engine is turned off the amp draw is -13A and vi collage is 13.2. This SH regulator has been in the plane since about 2017. 


    Walt

    my blog; waltsrv12.com


  • Re: voltage regulator questions

    by » Yesterday


    Hi Walt,

    I have just fitted a CARMO CARR5005 charging an Earth X  - It is delivering similar numbers to your Silent Hektik😈


You do not have permissions to reply to this topic.