fbpx
Login

 

Jump to Forum..

Battery

in General Tech Discussion 8 years ago
Proper battery for 912 ULS

  • Re: Battery

    by » 8 years ago

    That's kind of up to you to pick a battery. An 18 amp/hr and you're good. Some use smaller batteries, but the battery is right next to the starter and they get away with a smaller battery. I have seen 7 &12 batteries used, but that doesn't leave much reserve and the battery needs to be close to the starter and the wire short too. As a rule of thumb the farther away from the starter the bigger the gage wire.

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

      
    Report

  • Re: Battery

    by » 8 years ago

    I've been using an Odyssey PC680 for over 10 years. It is an AGM battery and, after I started religiously attaching my Battery Minder Plus smart charger, the second one lasted 7 years.

    Alan
      
    Report

  • Re: Battery

    by » 8 years ago

    There are a lot of planes that use Odyssey batteries. Average life seems to be 3-5 years. Like anything else it depends on how you take care of it.
    All the Flight Design aircraft use Odyssey. The guys in Europe use the Hawker SBS batteries which is the European make of the Odyssey.

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

      
    Report

  • Re: Battery

    by » 8 years ago

    I use a SuperB 7800 LiFePo4 battery. It is about 1/3 the weight of a descent battery, and turns the engine over so fast its amazing. I recon I could take off on battery power alone :-)
      
    Report

  • Re: Battery

    by » 8 years ago

    The battery is more than just an engine starter.
    360 amps for 10 seconds is 1 amp•Hour of power.
    As long as the battery can muster the high current, a very small battery will start the plane.

    Size the battery not just to start the plane but also to get you back on the ground with the engine still running after a generator failure.
    A 7aH battery may be able to crank the engine for over for a minute but it might not power the plane for even 30 minutes in the event of a generator failure.

    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Clicking the "Thank You" is Always Appreciated by Everyone.

      
    Report
You do not have permissions to reply to this topic.
Related Topics
Title Category Replies
About lithium ion battery last SIC-PAC Document General Tech Discussion 7
Battery Minder/Charger for 915iS 915iS Technical Questions 2
Battery Minder/Charger for 915iS 915iS Technical Questions 2
915 battery 915iS Technical Questions 4
Main Battery Low voltage 912iS Technical Questions 8
Follow Us

Recent Videos

Safety First!

 

To receive critical-to-safety information on your ROTAX Engine, please subscribe to
ROTAX-OWNER.COM

Prize Giveaway!


SUBSCRIBE NOW
to automatically enter this years draw!

Login