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Earthx Etx900 Lithium Battery 12v/15.6 Ah Case E - Experimental Aircraft Only
MFR Model# ETX900
Overview
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Note: Not FAA Approved. Intended for use in experimental aircraft only. The ETX900 is lightweight and crazy powerful! This battery is intended for 540ci engine size or less; 80 amp alternator/generator or less. The ETX battery series is fully protected by an integrated battery management system (BMS). The BMS protects the cell’s from over discharge, over charge, short circuit, temperature, in addition to cell balancing to ensure charge levels are equal. Additionally, the 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) |
Benefits
- With EarthX, you gain the quality and performance you want from your lithium batteries. Our experienced team commits to innovation and industry best practices to deliver batteries you can trust. We only source high-quality materials for our batteries, and we support every product with attentive customer service. The aircraft specific batteries are the ETX Hundred series, do not use the power sport batteries as they do not have all the same safety features as the aircraft specific ones.
- As a veteran-owned, U.S.-based company, we’re proud to provide the batteries you require for your experimental aircraft.
- Advantages Of Utilizing EarthX Batteries For Experimental Aircraft
- EarthX lithium batteries offer many benefits for experimental aircraft, including:
- Lightweight materials: Our lithium batteries use cutting edge technology that lead to a much lighter battery and more powerful batteries as compared to lead acid counterparts. There’s about an 80% weight savings over a comparable lead acid battery for instant weight savings.
For Example: the PC680 weighs 15 pounds and has 170CCA. The EarthX ETX680 weighs 4 pounds and has 320CCA. Lighter weight makes installation easier and improves the handling of your aircraft. - Increased cranking power: EarthX Batteries do not experience the large voltage drops as lead acid batteries experience to provide you a consistent and powerful startup every time you use your aircraft.
- Safe performance: EarthX Batteries feature a state-of-the-art Battery Management System (BMS) that monitors performance and prevents overcharging and over discharging. The BMS is key to the longevity of our batteries.
- Long-lasting: With the help of the BMS, our lithium batteries can last up to six years, even with heavy use in your experimental aircraft.
- Our Commitment To Powering Aviation
- Innovation drives us, and we continue to develop our batteries for use in the aviation industry. We are the first and only company in the world to have a 12V FAA TSO approved lithium battery for aviation use, and this is only the beginning. Our engineers have more TSO approved models in the works to make a significant impact on this industry. We currently also have a 24V FAA TSO battery offering.
- Lead acid batteries have been at the forefront of aircraft power for decades, but we want to see change. Our developments in lithium iron phosphate batteries offer greater power, performance and safety for aircraft of all types. Be prepared to see new aircraft on the market that come with EarthX Batteries straight from the manufacturer.
- We have goals in the aviation industry to make changes for the betterment of all, and we’re offering our support wherever we can with a Veteran owned and operated company in the USA.
Specifications
| Voltage | 13.2V |
|---|---|
| Capacity | 15.6Ah @ I C Rate (See charts Below) |
| Capacity vs Temperature | 25°C= 100% 0°C= 92% -30°C= 80% |
| Self-Discharge Rate | <3% / month @ 25°C |
| Pulse Crank Amps (PCA) | 840A (3 sec @ 25°C, voltage >9V |
| Cold Crank Amps (CCA) | 400A (modified SAE test, 3 sec @ 0°F, volts > 7.2V) |
| Continuous Discharge Amps | 150A |
| Standard Charge Voltage | 13.9 - 14.6V |
| Maximum Charge Voltage | 15V |
| Recommended Charge Voltage | 5 - 20A |
| Max Charge Amps | 80A (from vehicle charging system) |
| Life (Charge cycles, 80% depth of discharge) | 4000 cycles @ 1°C discharge rate, 25°C 2000 cycles @ 10°C discharge rate, 25°C |
| Life (Years) | 8 Years |
| Weight | 4.9 lb. (1.8kg) |
| Dimensions | 6.5 in (L) x 3.0 in (W) x 6.6 in (H) 166mm (L) x 79mm (W) x 168mm (H) |
| Environmental Rating (resistance to water intrusion) | IP 66 (wash down with a high pressure washer) |
| Operating Temperature | -30°C to +60°C |
| Storage Temperature | -40°C to +70°C |
In The Box
- 1 x ETX900
- 2 x 6mm screws
- 2 Pieces of 1/4″ x 4″ Foam
- LED fault light sold separately
Videos
Reviews
This is our second EtX900 battery. The first one lasted 6 years and still tests within the minimum spec, but its toward the lower end now so were freshening up to make sure its good for at least 6 more years. The performance of the battery has been flawless and it just amazes me how much power these lighweight batteries can store.
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
This is my second EarthX battery for my RV7. The current one has been in the plane for 5 years and exhibits NO sign of deterioration. However, I assigned a TBO of 5 years so replace it and keeping in the plane as a back-up (just in case). Could not be happier with EarthX. I highly recommend one for your plane.
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
It reduced the weight by 10 lb (always good) and spun the prop over faster than the AGM battery ever did. Now to see what the long term is like.
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
So far so good. This is one of those projects that (time will tell). The posts aren’t located favoring one side of the battery like the concord battery, so cables and battery box may require altering. Seems to crank better than the lead/acid batteries. No worries about acid leakage so that’s a huge benefit. Weight reduction is wonderful. Don’t know the exact difference but it’s crazy. All things considered I would buy again.
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
More starting power and voltage translate into faster starts in engines with electronic ignition, e-mags and so on. Less A/h rating than Oddysey 925, so make sure you are ok with it and of not, consider the larger Earth/x models. Top mounted terminals vs side mounted in the 925 Oddysey may require minor modifications to mounting brackets less weight requires you to recalculate w&b tables
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
Less voltage drop, more starting current yield faster starts with less cranking than the Oddysey 925 I replaced with, itself a great battery. Pay attention to Amp/h rating, the Earth/x has about half the capacity of the 925, make sure you understand how much battery reserve you have and of you are ok with it
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
This battery is replacing a PC680 which has difficulty starting I0-470. The EarthEX spins the starter quickly and maintains starter wrap engagement. Spins fast enough that I can no longer count blades. No kickbacks or backfire on hot starts. Hot start issues seem to be eliminated with more energetic rotation.
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
Replaced a functioning nine- year-old EarthX to be on the safe side. Wiring location was slightly different than the older battery but just made a short jumper to resolve the difference. Definitely pleased with the product and will buy again, hopefully in another nine years. :-)
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
This is the second earthx battery I have purchased from spruce. Quality product and great service...important to leave battery on tender/smart charger.
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
Love it worth the money
Verified Purchase
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900
Q&A
Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
The terminal screws are included.
Yes, the ETX900-TSO is FAA TSO approved. Please see our part # 11-18242.
The discharge power control circuits.
No. The customer can connect directly to their EFIS system and if they do this, no need for the LED light.
4.9 lbs approx
Yes, it can be shipped via air but it is considered hazardous and will incur hazardous fees.
Vents are not required for this battery.
Part # 07-18077, Optimate 7 Select Tm-271 Charger, would be a good option.
Yes, you can put the EarthX batteries in parallel, but NOT series.