Jabiru 3300 gen4 & EarthX Batt - Overvoltage Module - Zenith Aircraft Builders and Flyers2024-03-28T12:57:47Zhttps://zenith.aero/forum/topics/jabiru-3300-gen4-earthx-batt-overvoltage-module?commentId=2606393%3AComment%3A631602&x=1&feed=yes&xn_auth=noEarthx answered without delay…tag:zenith.aero,2018-06-08:2606393:Comment:6316022018-06-08T22:46:53.006ZJames Nicholshttps://zenith.aero/profile/JamesNichols
<p>Earthx answered without delay - </p>
<p style="font-weight: 400;">" We are going to update our technical information to reflect that your engine/charging system<span> </span><em>does not need</em><span> </span>the additional over voltage crowbar (along with the Rotax/ ULS Power permanent magnet charging systems).</p>
<p style="font-weight: 400;"> Tech Support,</p>
<p style="font-weight: 400;">P: (970) 674-8884…</p>
<p style="font-weight: 400;"></p>
<p>Earthx answered without delay - </p>
<p style="font-weight: 400;">" We are going to update our technical information to reflect that your engine/charging system<span> </span><em>does not need</em><span> </span>the additional over voltage crowbar (along with the Rotax/ ULS Power permanent magnet charging systems).</p>
<p style="font-weight: 400;"> Tech Support,</p>
<p style="font-weight: 400;">P: (970) 674-8884</p>
<p style="font-weight: 400;"><a href="http://www.earthxbatteries.com/">www.earthxbatteries.com</a> "</p> Somewhere way back it was exp…tag:zenith.aero,2018-06-08:2606393:Comment:6314842018-06-08T17:18:21.531ZJohn Austinhttps://zenith.aero/profile/JohnLAustin
<p>Somewhere <em>way</em> back it was explained to me (don't remember who, but it wasn't EarthX) that since the Jab has a permanent magnet alternator, a "run away" alternator situation is impossible, so therefore, no crowbar protection is necessary.</p>
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<p>This sounds reasonable, but I'm no electrician! All I can say is that I've run my Jab 3300 with an EarthX battery for several hundred hours with no problems. That's my story and I'm sticking to it! </p>
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<p>If EarthX tells…</p>
<p>Somewhere <em>way</em> back it was explained to me (don't remember who, but it wasn't EarthX) that since the Jab has a permanent magnet alternator, a "run away" alternator situation is impossible, so therefore, no crowbar protection is necessary.</p>
<p></p>
<p>This sounds reasonable, but I'm no electrician! All I can say is that I've run my Jab 3300 with an EarthX battery for several hundred hours with no problems. That's my story and I'm sticking to it! </p>
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<p>If EarthX tells you differently, please post their response! </p>
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<p>John</p>
<p>N750A</p> Sounds like the Jabiru chargi…tag:zenith.aero,2018-06-08:2606393:Comment:6314812018-06-08T16:48:48.177ZKen Ryanhttps://zenith.aero/profile/KenRyan
<p>Sounds like the Jabiru charging system is similar to the dynamo that is built into the Rotax 9 series engines. It is my understanding that EarthX does not require OV protection for such a system because the internal BMS (battery management system) can handle it. Larger alternators could overpower the internal BMS. But to be certain, why not contact EarthX? I have found them very responsive to inquiries.</p>
<p>Sounds like the Jabiru charging system is similar to the dynamo that is built into the Rotax 9 series engines. It is my understanding that EarthX does not require OV protection for such a system because the internal BMS (battery management system) can handle it. Larger alternators could overpower the internal BMS. But to be certain, why not contact EarthX? I have found them very responsive to inquiries.</p>