Backup batteries

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captain_john
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Joined: Sun Oct 31, 2004 9:17 am
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Backup batteries

Post by captain_john »

Hey All,

I am installing my IBBS Backup Battery as I type this.

...also Machine Man is a tad over 2 years runtime into his RV-7 with the same G3X panel as mine.

His IBBS just went Tango Uniform. It won't boot the system for startup without invoking the Odyssey.

Now, I went and broke the seal on my IBBS and was underwhelmed at the puny batteries within.

I like the "brains" if you will, of the IBBS. It seems like a good design. Besides, he is already wired for the IBBS.

Here is my thought...

Rather than sending the unit back to have it refurbished with the same puny cells, how bad would it be to bring the battery leads out of the box and wire them to an AGM alarm battery? Perhaps something in the vicinity of a couple of ampere hours?

The IBBS advertises it to be 4ah, but I seriously question that.

Mikey, you rolled your own alarm battery setup. How is that working?

Anyone have an opinion on what I am proposing here?



:? CJ
RV-7
Garmin G3X with VP-X & a TMX-IO-360 with G3i
It's all over but the flying! 800+ hours in only 3 years!

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leffler
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Post by leffler »

Mine is pretty simple.

I have a pair of 680's that can be put in parallel or isolated. When isolated the second 680 supplies the Ebus.

Additionally each of my three EFIS have an internal battery built into them. They weren't optional at the time, but does provide a little bit more redundacy.

bob
Bob Leffler
RV-10 - Flying
http://mykitlog.com/rleffler

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