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Note: Not FAA Approved. Intended for use in EXPERIMENTAL AIRCRAFT ONLY. This lithium aircraft battery is based on the ETX900 design. It has 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. It can be used in an aircraft that has an alternator/generator with 80 amps output or less and smaller than 550ci. In addition, the ETX900-VNT meets all of the DO-311a lithium battery use in aircraft testing requirements. This is not a TSO or PMA part number. Also, this aircraft battery comes with an LED battery fault light indicator on the battery itself. 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). Additionally, the ETX-Series battery management system (BMS) protects the cells from over discharge, over charge, short circuit, heat (excessive cranking), and have built in cell balancing technology. Plus these protections are redundant for another layer of protection. |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. |


| Voltage | 13.2V |
|---|---|
| Capacity | 16Ah @ 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 | 5.4 lb. (1.8kg) |
| Dimensions | 6.5 in (L) x 3.1 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 |

Order made it to me in a prompt manner.
EarthX Lithium Battery Experimental Aircraft 12V/15.6 AH Case E ETX900-VNT
Please note, Aircraft Spruce ®'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 ® 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.
No the vent kit is not included.