Dynon Back Up Battery powering additional instruments

[sonny junell]

I am installing a D10a & opting for the backup battery option.

This instrument will be my back up gyro.

I have a MGL map-1 that will act as a back up engine instrument.

I am wireing the map-1 off the D10 power wire "in-line fuse". I thought it would be nice to have the back up battery power the map-1 in case of of all electric failure.

I spoke with dynon and respect there response "do not alter the back up battery."

But I am still looking into.

The map-1 draws less 50mA, any one have some non-liability advice/idea.

[Andy Hill]

The D180, at least, backup battery is ~16V. So there are some step-up electronics, and I doubt there is +12V coming "back out" of the power in line... but I may be wrong.

Personally I would avoid using the Dynon backup battery to power other things... If you think other areas need backup, then get insts with that ability. However, if you are determined, I am sure the Dynon pushes out some V on some sensor line (remote compass?) that you could try, albeit probably result will be a fried Dynon

Andy

[GregM]

TruTrak has a battery backup for their ADI that is small, independent, and wired up via DB9. I believe its 12V.

[breister]

Hacking into another vendor's solution for backup power is not an "approved solution" and may have very bad unintended consequences.

If you want one or more instruments to have a backup battery not integral to the unit, there is a way to wire a circuit for just those instruments and install a small gel-cell battery behind the panel dedicated to powering them. Checkout Aeroelectric Connection.

[Danny7]

why don't you ask MGL?

they sell these:

BackupBattery12V 1.2 Ah sealed lead-acid backup battery (for Enigma), $30


Qty:

BackupBattery12V 2.5 Ah sealed lead-acid backup battery (for Odyssey), $40

I think they can help you get the wiring set up to put your map1 on one of these batteries. Seems a lot cheaper than a possibly ruined dynon?

[sonny junell]

I will let yall know what I come up with, I should be receiving my d10 in a few weeks