Results 1 to 34 of 34

Thread: Earth X Certified

  1. #1
    Bearhawk Builder's Avatar
    Join Date
    Aug 2012
    Location
    In the woods
    Posts
    618
    Post Thanks / Like

    Earth X Certified

    https://earthxbatteries.com/product-...ified-aircraft

    TSO'd, no STC available so still a field approval.
    Thanks 180Marty thanked for this post

  2. #2

    Join Date
    Nov 2006
    Posts
    59
    Post Thanks / Like
    I know this is a popular topic, but for a CAR 3 certified airplane, does the TSO suffice to make it legal? CAR-3 reads “Batteries. When an item of electrical equipment which is essential to the safe operation of the airplane is installed, the battery required shall have sufficient capacity to supply the electrical power necessary for dependable operation of the connected electrical equipment.”

    The remaining language discusses what to do with battery acid and venting.


    Sent from my iPad using SuperCub.Org
    Likes mike mcs repair, skywagon8a, Ruffair liked this post

  3. #3

    Join Date
    May 2017
    Posts
    379
    Post Thanks / Like

    Earth X Certified

    Quote Originally Posted by silflexer View Post
    I know this is a popular topic, but for a CAR 3 certified airplane, does the TSO suffice to make it legal? CAR-3 reads “Batteries. When an item of electrical equipment which is essential to the safe operation of the airplane is installed, the battery required shall have sufficient capacity to supply the electrical power necessary for dependable operation of the connected electrical equipment.”

    The remaining language discusses what to do with battery acid and venting.


    Sent from my iPad using SuperCub.Org
    Interesting question. Given that the installation manual would require a light and a volt meter, and there are procedures that would require a flight manual supplement, I don’t see this as a minor alteration. Not a big deal to do a Field Approval or engineering approval except getting the ACO to sign off on the flight manual supplement.

    Comparing EarthX to SBSJ16, you would be paying $51 per pound for the weight savings with their introductory price. That jumps up to $71 a pound with full price. I’m all for saving weight, but that’s pretty pricey in my book.


    Sent from my iPhone using Tapatalk
    Last edited by dgapilot; 04-10-2019 at 01:58 PM.
    Likes tripper liked this post

  4. #4

    Join Date
    Nov 2006
    Posts
    59
    Post Thanks / Like
    Good point- the installation manual does indeed say that the fault light is required to be installed. It seems that placing this battery in a atlee box on the firewall of a cessna 180 would meet the requirements other than adding the vent lines. I am going to draft a 337 for the local FSDO and see what they say. I love these batteries and even though they will be expensive, they are still 10 pounds lighter where I need the weight savings the most


    Sent from my iPhone using SuperCub.Org
    Likes RaisedByWolves, Ruffair liked this post

  5. #5

    Join Date
    Oct 2012
    Posts
    4,323
    Post Thanks / Like
    What is EarthX saying about installation locations and heat? I've had an Odyssey on my 180 firewall for about 20 years and it hasn't had any heat issues but I recall an early EarthX having a melted case, and not from internal heat. I'd like to switch, too.

  6. #6

    Join Date
    Nov 2006
    Posts
    59
    Post Thanks / Like
    Battery Installation Location
    The ETX900-TSO is designed to be mounted in a variety of locations within the aircraft including the engine compartment, baggage compartment or cabin as long as the environmental condition in those locations do not exceed the battery’s specifications (see the specifications section and environmental qualification section of this manual). The battery can be mounted in any position.


    Never expose the battery to fire or temperatures above 185° F or 85° C.


    Sent from my iPhone using SuperCub.Org
    Likes mike mcs repair liked this post

  7. #7

    Join Date
    Nov 2006
    Posts
    59
    Post Thanks / Like
    I seem to remember someone saying that they were paying a whole bunch more than $51/pound when trying to save weight on a cub. Mainly when using carbon fiber and titanium to save those precious pounds. Sounds silly on a 1700# airplane but sometimes it is more about losing pounds at critical CG locations as opposed to just losing pounds. We shall see, but I do love the reliability of these batteries compared to a legacy battery. Not sure how I would rank them compared to an Odyssey.


    Sent from my iPhone using SuperCub.Org
    Likes mike mcs repair liked this post

  8. #8

    Join Date
    Oct 2012
    Posts
    4,323
    Post Thanks / Like
    Thanks for the reply.

    My Odyssey PC625 has been friggin awesome but to lose a few pounds on the firewall can't hurt. Too bad I can't use the spare ETX-900 I already have!
    Likes RaisedByWolves, mike mcs repair liked this post

  9. #9
    aktango58's Avatar
    Join Date
    Aug 2004
    Location
    18AA
    Posts
    9,022
    Post Thanks / Like
    Quote Originally Posted by silflexer View Post
    I seem to remember someone saying that they were paying a whole bunch more than $51/pound when trying to save weight on a cub. Mainly when using carbon fiber and titanium to save those precious pounds. Sounds silly on a 1700# airplane but sometimes it is more about losing pounds at critical CG locations as opposed to just losing pounds. We shall see, but I do love the reliability of these batteries compared to a legacy battery. Not sure how I would rank them compared to an Odyssey.


    Sent from my iPhone using SuperCub.Org
    My battery, (old Gill) is about totally dead. I am carrying the Earth X jump pack just in case, (thank you Stewart for suggesting). Wonder if Earth X will have a booth at Anchorage? I will buy a new battery if they do!
    I don't know where you've been me lad, but I see you won first Prize!

  10. #10
    www.SkupTech.com mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    10,121
    Post Thanks / Like
    $51 a lb is cheap! in aircraft weight savings terms.... usually measured in $1000.00 increments....

  11. #11
    aktango58's Avatar
    Join Date
    Aug 2004
    Location
    18AA
    Posts
    9,022
    Post Thanks / Like
    Compared to the Gill Jumbo Suitcase, it might be more weight savings. Move it to under my seat, cut out wires and such.. good times!
    I don't know where you've been me lad, but I see you won first Prize!

  12. #12
    nanook's Avatar
    Join Date
    Aug 2002
    Location
    northern alaska
    Posts
    1,637
    Post Thanks / Like
    Seems you could install this battery using the Atlee Dodge under-seat, battery-rack, STC...

  13. #13
    mvivion's Avatar
    Join Date
    Jun 2003
    Location
    Bozeman,MT
    Posts
    10,311
    Post Thanks / Like
    Quote Originally Posted by nanook View Post
    Seems you could install this battery using the Atlee Dodge under-seat, battery-rack, STC...
    Exactly what I was thinking.

    MTV

  14. #14

    Join Date
    May 2017
    Posts
    379
    Post Thanks / Like
    Quote Originally Posted by nanook View Post
    Seems you could install this battery using the Atlee Dodge under-seat, battery-rack, STC...
    Does that STC provide the warning light? Does it provide a flight manual supplement with the EPS called out in the battery instructions?

    I agree the Atlee Dodge STC likely provides the structural part, but not the rest.


    Sent from my iPhone using Tapatalk

  15. #15

    Join Date
    Oct 2012
    Posts
    4,323
    Post Thanks / Like
    They achieved TSO approval. No STCs yet.

    All EarthX aviation batteries have a built in LED status light and a pigtail for a panel light. They sell two different LED panel lights.

  16. #16
    RaisedByWolves's Avatar
    Join Date
    Feb 2005
    Posts
    3,707
    Post Thanks / Like
    You can get a field approval in the under seat atlee box.


    Sent from my iPhone using Tapatalk

  17. #17
    gdafoe's Avatar
    Join Date
    Feb 2002
    Location
    Castle Well Airpark SE of Wickenburg AZ
    Posts
    866
    Post Thanks / Like
    https://www.digikey.com/products/en?...ds=350-2511-nd This is the panel LED that I used. They are smaller and I just like the looks of it better than the one they sell. I have one for each battery for the electronic ignition system I use. I use the same one with but with amber LED for the alternator low voltage warning light. I'm experimental.
    Gerald

  18. #18
    nanook's Avatar
    Join Date
    Aug 2002
    Location
    northern alaska
    Posts
    1,637
    Post Thanks / Like
    Quote Originally Posted by dgapilot View Post
    Does that STC provide the warning light? Does it provide a flight manual supplement with the EPS called out in the battery instructions?

    I agree the Atlee Dodge STC likely provides the structural part, but not the rest.


    Sent from my iPhone using Tapatalk
    https://earthxbatteries.com/product-...ified-aircraft (pretty much self explanatory on this link).

  19. #19

    Join Date
    Nov 2012
    Location
    Lake Lanier, GA
    Posts
    1,035
    Post Thanks / Like
    It is pretty clear what is going on here. Low introductory price gets some people to 337 these things. Then the 337 will be used basis of everyone else's 337 until the FAA cries uncle at the paperwork deluge and grants an STC.

  20. #20
    nanook's Avatar
    Join Date
    Aug 2002
    Location
    northern alaska
    Posts
    1,637
    Post Thanks / Like
    There are so many variables involved with mounting these batteries, why not do it this way? They supplied all the approved data...
    Likes FdxLou liked this post

  21. #21

    Join Date
    Oct 2012
    Posts
    4,323
    Post Thanks / Like
    Installation is spelled out nicely in 43.13-2B. All you need is an approval for the LIo battery instead of the lead-acid that 43.13 allows. If they'd update 43.13 to include TSO'd LIo batteries nobody would need any approvals.

  22. #22
    hotrod180's Avatar
    Join Date
    May 2008
    Location
    Port Townsend, WA
    Posts
    2,477
    Post Thanks / Like
    Quote Originally Posted by GeeBee View Post
    It is pretty clear what is going on here. Low introductory price gets some people to 337 these things. Then the 337 will be used basis of everyone else's 337 until the FAA cries uncle at the paperwork deluge and grants an STC.
    Never seen the FAA cry uncle.
    Usually they just cry "no", at least around here.
    Pretty easy for a public agency employee to just ignore / put off paperwork,
    see that done more often than not.
    Cessna Skywagon-- accept no substitute!
    Likes RaisedByWolves, Steve Pierce liked this post

  23. #23

    Join Date
    Nov 2012
    Location
    Lake Lanier, GA
    Posts
    1,035
    Post Thanks / Like
    Once one office somewhere signs off a 337, the flood gates open.

    I see them cry uncle all the time. ex. Doing some 91.146 work. Start talking to them about paper work and they will ask if you have a commercial pilot certificate and you say yes, see if they want to write. Run a part 135 operation with 10 pilots to certify, see how quick you are a check airman. They just cried uncle on DPE's giving checkrides outside their region. Heck the whole 737 Max debacle came out of the FAA crying uncle on approval pacing.
    Likes mike mcs repair, alaskadrifter liked this post

  24. #24

    Join Date
    Oct 2012
    Posts
    4,323
    Post Thanks / Like
    Celebrate the accomplishment. Standard category planes now have a path to use the best battery available at a fraction of the weight. I have an EarthX in my exp Cub. I’ll be putting one in my 180. This is a good thing.
    Likes cubdriver2, 180Marty, RaisedByWolves liked this post

  25. #25

    Join Date
    Sep 2013
    Location
    Nor Cal
    Posts
    155
    Post Thanks / Like
    My buddy has a field approval in a J3

  26. #26
    mountainmatt's Avatar
    Join Date
    Dec 2010
    Location
    CO
    Posts
    189
    Post Thanks / Like
    Has anyone installed a ETX900-TSO into a F.A. Dodge firewall battery box? I'm looking to do so on a C180 soon and I'm getting conflicting reports that it won't fit (it's slightly wider by about 1/16").

    Looking for feedback, thanks.

  27. #27
    aktango58's Avatar
    Join Date
    Aug 2004
    Location
    18AA
    Posts
    9,022
    Post Thanks / Like
    Bought the Earthx box with the battery.

    Why not? it will fit that way
    I don't know where you've been me lad, but I see you won first Prize!

  28. #28
    skukum12's Avatar
    Join Date
    Feb 2004
    Location
    The Last Frontier
    Posts
    1,074
    Post Thanks / Like
    It's just bigger enough to make one nuts. Had to modify the battery rack to fit. Wish I knew they had a box available.
    "Always looking up"

  29. #29
    mvivion's Avatar
    Join Date
    Jun 2003
    Location
    Bozeman,MT
    Posts
    10,311
    Post Thanks / Like
    Quote Originally Posted by aktango58 View Post
    Bought the Earthx box with the battery.

    Why not? it will fit that way
    Why not? Atlee’s box has an approval?

    MTV

  30. #30

    Join Date
    Oct 2012
    Posts
    4,323
    Post Thanks / Like
    Approval of the box isn't necessary. Use 43.13-2B for the relocation. The Earth X box is very nice. In a typical Skywagon installation you'd need to add stand offs to straddle the vertical leg on the seaplane mount but that'd be simple. Just make sure there's space above it since the Earth X box is a top loader. Wouldn't work in my plane. Would need to adapt it to a front loader like Mike did in the Wildcat.
    Likes 180Marty liked this post

  31. #31
    RaisedByWolves's Avatar
    Join Date
    Feb 2005
    Posts
    3,707
    Post Thanks / Like
    Got one FA in a cub atlee under seat battery tray
    Likes Steve Pierce liked this post

  32. #32
    mountainmatt's Avatar
    Join Date
    Dec 2010
    Location
    CO
    Posts
    189
    Post Thanks / Like
    Yes, I'm looking to get a FA so the Atlee box seems like a more possible scenario since it's STC'd. I already have the Atlee box installed so it would be a more cost effective solution and I hate drilling more holes than needed in the firewall.

    Thanks for the replies.

  33. #33
    Steve Pierce's Avatar
    Join Date
    Mar 2002
    Location
    Graham, TX
    Posts
    18,357
    Post Thanks / Like
    Quote Originally Posted by RaisedByWolves View Post
    Got one FA in a cub atlee under seat battery tray
    Can you share a copy?
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  34. #34
    aktango58's Avatar
    Join Date
    Aug 2004
    Location
    18AA
    Posts
    9,022
    Post Thanks / Like
    Quote Originally Posted by stewartb View Post
    Approval of the box isn't necessary. Use 43.13-2B for the relocation. The Earth X box is very nice. In a typical Skywagon installation you'd need to add stand offs to straddle the vertical leg on the seaplane mount but that'd be simple. Just make sure there's space above it since the Earth X box is a top loader. Wouldn't work in my plane. Would need to adapt it to a front loader like Mike did in the Wildcat.

    Mount box on side?

    Battery box supplied by owner. The Maule uses a rack anyway, and it is a 'hold down system', not a box. Don't see a problem.

    Any more I am just fine, no floats- only float planes are dangerous here
    I don't know where you've been me lad, but I see you won first Prize!

Similar Threads

  1. Move over Earth X
    By stewartb in forum Experimental Cubs
    Replies: 3
    Last Post: 12-08-2018, 11:33 PM
  2. non certified floats on certified plane
    By swoeric in forum Float Operations
    Replies: 25
    Last Post: 12-21-2017, 05:35 PM
  3. MT Composite Prop certified but Catto not certified
    By slowjunk in forum Cafe Supercub
    Replies: 39
    Last Post: 04-11-2017, 06:15 AM
  4. Curvature of the earth or not
    By 180Marty in forum Cafe Supercub
    Replies: 7
    Last Post: 06-17-2013, 12:51 PM
  5. Replies: 26
    Last Post: 06-09-2013, 03:04 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •