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Hi , I have a 912ul , I seem to be having problems with battery drain, when I have not run the engine for about a week the battery goes flat, so thinking it was the battery I bought a new item, only to find the same thing happening, I have had an ammeter in series with the battery and the appears to be no discharge when the ignition is switched off. Help
  • Re: Battery drain.

    by » 8 years ago


    If the battery isn't bad (new ones sometimes aren't in great shape and can be old) then it must be some parasitic drain. Are you sure you are completely switching off all power when you leave it for the day?

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell


  • Re: Battery drain.

    by » 8 years ago


    Found the problem, turned out I had a 25ma drain, this was because the the c connection on the regulator was not through the ignition switch, wire moved to the switched live side of the ignition switch and all is well.

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