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reheat asked

Orion TR Dual Ignition Input

I have an Orion TR Non-Isolated DC-DC 30 amp charger installed in my twin engine boat. I'd like to connect both 12v ignition lines to the H pin so that the charger operates when either engine is running. Does anyone know if this would cause any issues when both engines are running and providing 12v to the H pin at the same time? Thank you.

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klim8skeptic answered ·

You can use two diodes to combine the inputs, while preventing backfeed.

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reheat avatar image reheat commented ·
Great idea. Thank you.
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klim8skeptic avatar image klim8skeptic ♦ reheat commented ·
Pretty sure you need a positive connection to the H pin.
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reheat avatar image reheat klim8skeptic ♦ commented ·
This is correct. Thanks. I've edited my post.
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