EarthX Battery in a Rv10, Comments?

[maca2790]

Hi Guys,

I am thinking about installing an ETX900 in my RV10.

I have had a 2nd Concorde 25Xc fail in 5years. The first one lasted 2 years for 87 hrs of flying. Now this 2nd battery has about 106 hrs on it for 3 years of use.
These batteries are very expensive here in Australia ($640 AUS) and I am seriously considering and EarthX ETX 900 as a replacement.

The Battery cradle will need modification for the EarthX but that should only be a minor like installing a few spacers.

Does anyone have any experience with EarthX batteries in their RV10?

Cheers

John MacCallum
VH-DUU
RV10 41016

[rleffler]

Originally Posted by maca2790

Hi Guys,

I am thinking about installing an ETX900 in my RV10.

I have had a 2nd Concorde 25Xc fail in 5years. The first one lasted 2 years for 87 hrs of flying. Now this 2nd battery has about 106 hrs on it for 3 years of use.
These batteries are very expensive here in Australia ($640 AUS) and I am seriously considering and EarthX ETX 900 as a replacement.

The Battery cradle will need modification for the EarthX but that should only be a minor like installing a few spacers.

Does anyone have any experience with EarthX batteries in their RV10?

Cheers

John MacCallum
VH-DUU
RV10 41016

I have the 900 as my main battery and a 680 for my ebus. Both are mounted when the plans battery is located. I had previously modified the tray for a pair of Oddessy 680s.

They are working great! Especially when it’s cold outside.

[Auburntsts]

I have an ETX1200 in the stock battery box. I had to fab some shims for the box, the top of the battery, and shorter hold down bolts to get it to fit.

[maca2790]

Originally Posted by rleffler

I have the 900 as my main battery and a 680 for my ebus. Both are mounted when the plans battery is located. I had previously modified the tray for a pair of Oddessy 680s.

They are working great! Especially when it’s cold outside.

Hi Bob,
yes I think I saw you post something about having an EarthX.
Interesting about the 680 for E Buss. I don't have an E buss, I have a back
up Plane Power Alternator driven off the Accessory Pad.

The Advanced Flight Screens have their own back up batteries.

In the Rv14, I am about to start work on, I haven't decided yet on what type of back up but I am thinking of going with the Back Up Alt like in the 10.

How old is your EarthX 900?


John M

[maca2790]

Originally Posted by Auburntsts

I have an ETX1200 in the stock battery box. I had to fab some shims for the box, the top of the battery, and shorter hold down bolts to get it to fit.

Hi Todd,
the 1200 has a lot of reserve I should think. How long have you had it?

Cheers

John M

[Dustyone]

Hey John,
5 years and going strong on the ETX900.
If you will love the effect on your w & b
Cheers

[cderk]

I installed the 900 in my RV10 in the stock location. I basically took a piece of wood that fit the stock battery tray and cut a hole in it to match the footprint of the EarthX. Then used the stock hardware to hold it in place. Very easy and works well.

[rvanstory]

I have EarthX in my 10. Only 48 hours of flight though. Happy with it so far.

Here's a few pics of the installation showing the added bracket on the top battery holder to keep it in place. Should I ever want to go back to larger battery, I just have to drill out 3 rivets and the tray is unaffected.

[Carl Froehlich]

Most RV-10s need some weight aft. What are you builders using the lighter EarthX batteries doing to correct for W&B?

Carl
RV-10 with dual PC-625 batteries mounted in the standard location and very happy with W&B.

[Auburntsts]

Originally Posted by Carl Froehlich

Most RV-10s need some weight aft. What are you builders using the lighter EarthX batteries doing to correct for W&B?

Carl
RV-10 with dual PC-625 batteries mounted in the standard location and very happy with W&B.

I really haven’t noticed a difference. Even with my old battery, an Odyssey 925, when solo or just a co-pilot I always flew with gear (tool kit, cover, tie down ropes, gust lock, etc) in the baggage compartment plus a plastic 5 gal collapsible water cube. What I like about using water for ballast is I can start with it full and dump if necessary if I pick up pax or cargo Enroute.