Experimental Aircraft

ETX900
$449.00

The ETX900 is light weight and crazy powerful!

This battery is intended for 540ci engine size or less; 80 amp alternator/generator or less.

Our ETX battery series is fully protected by an integrated battery management system (BMS) that protects the cell’s from over discharge, over charge, short circuit, temperature, plus cell balancing to ensure charge levels are equal. Additionally, our ETX Hundred series aircraft batteries have redundant electronic circuits and battery fault indication. The fault indicator can be connected into your EFIS or wired to a 12volt LED light on your control panel to alert you to the state of charge and state of health of the battery. (Please see manual for details)

EarthX is proud to be the most trusted brands in the experimental aircraft market.

If you live outside the USA or Canada, email us at sales@earthxbatteries.com for a shipping quote.

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ETX900-24 (24-28V systems)
$899.00

ETX900-24 is a replacement battery for a 24-28V battery with 840 cranking amps and only weighs 8.9 pounds! Now that’s weight saving technology!

Designed for turbine engines up to 900hp or piston engines up to 550ci . See table below for charging system guidelines.

ALTERNATOR/GENERATOR
MAX CHARGING OUTPUT VOLTAGE
REGULATOR SETTINGS # OF BATTERIES NEEDED

80A 29V 1

150A 28.2V 1

300A 28.2V 2 in parallel

Our ETX battery series is fully protected by an integrated battery management system (BMS) that protects the cell’s from over discharge, over charge, short circuit, temperature, plus cell balancing to ensure charge levels are equal. Additionally, our ETX Hundred series aircraft batteries have redundant electronic circuits and battery fault indication. The fault indicator can be connected into your EFIS or wired to a 24volt LED light on your control panel to alert you to the state of charge and state of health of the battery. (Please see manual for details)

EarthX is proud to be the most trusted brands in the experimental aircraft market.

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ETX900-VNT
$549.00
The ETX900-VNT designed for in cabin installations!

This battery is based on the ETX900 design with the same cranking, capacity and electronic protections (BMS) but also has the addition of built in thermal runaway containment and venting for in cabin installation with 1 venting tube that is 6 feet in length, 1/4″ inside diameter, 5/16″ outside diameter. Under accessories button, you can order custom lengths of tubing if needed. It is 5.4 pounds and can be used in an aircraft that has an alternator/generator with 80 amps output or less and smaller than 550ci. The ETX900-VNT meets all of the DO-347 lithium battery use in aircraft testing requirements. This is not a TSO or PMA part number.

This battery also comes with an LED battery fault light indicator on the battery itself plus it can be programed into your EFIS or wired to your control panel of your aircraft with a simple 12V LED light that alerts you to the state of charge and state of health of the battery. (Please see manual for details)

The battery management system (BMS) protects the cells from:

over discharge

over charge

short circuit

heat

cell balancing technology

PLUS these protections are redundant for another layer of protection.

EarthX is proud to be one of the most trusted brands in the experimental aircraft market.

If you live outside the USA or Canada, email us at sales@earthxbatteries.com for a shipping quote.
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Multi use battery box for ETX680/900/900-VNT/1200 or PC680
$59.00

The multi-use aluminum battery box is excellent to use with the EarthX lithium batteries for easy installation!

This battery box can be used interchangeably for the EarthX Lithium Battery models ETX680/900/900-vnt/1200 or the Odyssey PC680 with the use of a foam spacers. We call it the multi-use battery box for this reason.

$59.00

If you are using the battery box for the EarthX Lithium batteries, you will use a foam spacer on the left and right side of the battery for a snug fit. If you are using the battery box for the PC680, you will use the foam spacer on the backside at the bottom of the case to adjust for the tapering of the case for a snug fit. That easy!

This battery box was engineered to be strong enough to withstand 30 G of force for the EarthX Lithium Batteries or 15 G of force for the PC680 yet only weighs 8.6 ounces or 244 grams. This unique design allows for simple, easy installation with the dimensions: 7.1″ L x 3.1″ W x 6.5-6.6″ (adjustable)H or (180mm x 80mm 166-168mm) and the mounting holes are identical to the existing 4 sided Van’s battery box for the PC680 so no new drilling of holes needed. The holes DO NOT match up if you have the Atlee Dodge battery box. Model number BB-MU.

Included: top front hold down, 2 screws for the hold down, and the battery box

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Thermal Battery Box ETX680/900/900-VNT/1200
$115.00

Thermal battery box to protect from heat!

The EarthX thermal battery box is designed to protect the battery in engine compartment installations from periods of high temperature (up to 1 hour), such as after shutdown, and from radiant heat from hot surfaces like exhaust systems during and after flight. This stainless-steel box has a mirror finish to minimize the effect of radiant heat, and it has a high-performance insulating foam layer between the box and battery to reduce effect of convection heat. The hold-down tab comes with a mounting fixture that can hold a cooling air duct up to 1” in diameter. This battery box was engineered to be strong enough to withstand 30 G of force yet only weighs 1 pound. It has the same mounting holes as the custom battery box or the multi-use battery box.

All batteries have optimal temperature ranges for use in operation. The ETX hundred series is rated for 140 deg F ( 60 deg C) or less for optimal longevity and performance of the battery. Typical lead acid batteries are rated to 113 deg F or 45 deg C.

This battery box is designed to be compatible with our existing “E” case battery models; ETX680/900/1200.

Model BB-TB

The “Radiant and Convection” graph shows the internal cell temperature with an extreme test example. The battery was placed in a test environment chamber with temperatures of 185 Deg F (85 deg C) and simulated 1000 Deg F (538 deg C) exhaust pipe 6 inches from the front of the battery. In this case there was a 3.5X improvement in the time to heat up the battery cells to the high operating limit. In less extreme temperatures, the improvement can be 4X.

The “Convection” graph shows the battery (not cell) temperature rise with a test environment of 185 Deg F (85 deg C). In this case there was a 5.3X improvement in the time to heat up the battery.

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Vent Kit for ETX900-VNT
$110.00
This kit includes all you will need to make the installation of an ETX900-VNT easy and professional looking. The kit includes:

Wye fitting to connect to the ETX900-VNT’s two ¼” tubes to a single 3/8” tube

6 feet of 3/8” tubing that can be cut to a custom length

An aluminum exhaust port with 3/8” tube fitting. The exhaust port mounts to fuselage through a 9/16″ diameter hole and is secured with pal nut and lock washer.

Model: VK-900
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Testimonials

Dear EarthX, I want to thank you for great service. You warranted my battery, and exchanged it for a new one. I want you to know that I thought I was in for a fight, not used to such good service. Very well appreciated. Some times doing business online , especially second party , can be […]

Beyond excellent customer service!

I have to admit that your customer service is well above the standard level that I’ve received from other aircraft businesses. I was expecting a “shrug of the shoulders” response regarding the limited two year warranty for a battery I purchased three years ago. What I was surprised to learn is that your company is […]

Customer service well above standard!
When I called a real person picked up the phone when I had an issue with my battery. I then emailed your Warranty folks and everything was taken care of right away. I got a call right back, followed up by an email, with a replacement battery in the mail! That’s Customer Service! I will […]

Great customer service!
Thanks a million for the “care package”. It showed up this afternoon. The 36C was exactly what my 1190R needed, starter spins up like it should now – I should have bought this battery 3 years ago when I first got the bike. I appreciate your interest and help!

Craig D

I should have done this 3 years ago!
Dear EarthX,

I have made 10 or 15 engine starts since installing the new EarthX battery last week. It is PHENOMENAL! It spins the engine over much faster and makes the engine starts much better.

Gary W. (in an airshow performance plane)

PHENOMENAL!
Thank you so much for the quick reply. You folks have the service side of this business down pat. I can’t tell you how much it means to me to have been able to sort this problem out so quickly and painlessly. In my years in business I graded my […]

Customer for life!

My Aprilia Futura 1000cc V-twin doesn’t like batteries recommended by the factory and when using them it struggles to start and usually kills them within 2 years. It also likes to leave me stranded costing $400 for tow trucks and the embarrassment comes free of charge. One of my co-workers is using your batteries […]

3 years later…..love my EarthX

OMG!!! You sold me a battery for my RV-8A at the Northwest Aviation Conference in Puyallup, WA. I put it in my plane a few weeks ago but the weather did not co-operate until today. What a difference! My starter does not whine anymore and it cranks way faster! Also, I still have not lost […]

OMG! You were right!

Recently purchased and installed an ETX680C for my experimental plane. The 680C replaced a Ballistics Performance EVO2 battery. Your battery is FANTASTIC. There is an amazing difference in cranking performance–I can almost taxi my aircraft when just running the starter!

Ted W.

FANTASTIC PRODUCT!

Questioned myself for buying such a costly battery, however it has been one of my best decisions. This battery has performed exceptionally well and I will continue to upgrade to these Lithium batteries on all of my sport equipment!

Buck
The weight loss on my bike was felt immediately. Feels like a have a smaller bike now. Still can’t believe how light weight and strong starting ability. I’m thoroughly impressed. Hope it can hold out for the long run. Very happy so far. Install took a little TLC by bending some loop connectors but battery […]

K1200RS
By changing to this battery in my airplane, I shaved 10 lbs off the forward area and gave myself a far better battery. Easy fit too.

Don

Great weight saver in my aircraft!
Twice the CCA’s at less than 1/3 the weight. Great product and great company!

Scott

ETX36C
Purchased the ETX900 for my 3300 Jabaru aircraft engine in my Zenith CH750. The new battery spins the engine significantly faster, allowing for starting the engine without preheating every time (anytime it was below 60 degrees F) What a difference it made and saved me just over 10 pounds. It’s worth the price.

Eric

Zenith CH750
After flying all weekend I must say I am impressed with this battery (ETX 900). My Odyssey PC 925 always worked well until recently with 4 years of use it started turning the prop a bit slower each time during start.

Your ETX 900 turned my engine and prop (IO-360, C/S) faster than I’ve ever seen […]

Follow up testimonial to Aerobatic Airplane
Greetings from St Louis,
>
> I just purchased and installed an ETX 900 in my Vans RV-4. I have an IO-360 engine with a constant speed prop so I need some good cranking amps. Due to weight and balance considerations the battery is mounted just behind the back seat in the baggage compartment. The previous […]

Aerobatic Aircraft
Since receiving the EARTHX battery. . .moments before I left for a Mid-East Hare Scramble. . .I have climbed from 188th up to 38th overall finish.

Your product lightened my gas bike. . .made it start better and faster. . .and my clutch went out the first race with the EARTHX. . .and I would have […]

Your product helped me go from 188th to 38th this year!
Dear EarthX,

I purchased an ETX900 for an experimental aircraft. For 3 days I cranked on the motor and finally figured out I had a broken wire which stopped the engine from starting. The battery turned the engine over without hesitation and never needed charging. I was impressed with the performance of this light little battery!

After […]

Very happy customer!
Wow what a great customer service ! Your response was so fast and helpful.I always liked the performance and the quality of your battery, but now i really love your customer service ! Thank you so much i’m an happy customer !!!

Danny C.

Very happy customer with a Can Am
EarthX, I’m speechless. Please let me know how I can sing your company’s praises most loudly. I can’t recall ever having such prompt and wonderful customer service!

I have been enormously pleased with the battery. It is light years more powerful than the lead acid OEM battery.

Allen D.

KTM 350

EarthX, Inc., P.O. 767, Windsor, CO, 80550
sales@earthxbatteries.com • USA Toll Free 844.220.6230 • 970.674.8884

ALTERNATOR/GENERATOR MAX CHARGING OUTPUT	VOLTAGE REGULATOR SETTINGS	# OF BATTERIES NEEDED
80A	29V	1
150A	28.2V	1
300A	28.2V	2 in parallel

Experimental Aircraft

ETX900

The ETX900 is light weight and crazy powerful!

ETX900-24 (24-28V systems)

ETX900-24 is a replacement battery for a 24-28V battery with 840 cranking amps and only weighs 8.9 pounds! Now that’s weight saving technology!

ETX900-VNT

The ETX900-VNT designed for in cabin installations!

If you live outside the USA or Canada, email us at sales@earthxbatteries.com for a shipping quote.

Multi use battery box for ETX680/900/900-VNT/1200 or PC680

The multi-use aluminum battery box is excellent to use with the EarthX lithium batteries for easy installation!

Thermal Battery Box ETX680/900/900-VNT/1200

Thermal battery box to protect from heat!

Vent Kit for ETX900-VNT

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Testimonials