Note: Not FAA Approved. Intended for use in experimental aircraft only.
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!
With an EarthX lithium battery, you will gain a significant amount of cranking amps and drop a minimum of 11+ pounds instantly by switching from a lead acid battery.
Please view the Aircraft Application Flowchart under the documents tab for assistance in selecting the correct EarthX battery for your application.
The 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)
|Capacity||15.6Ah @ I C Rate (See charts Below)|
|Capacity vs Temperature||25°C= 100% |
|Self-Discharge Rate||<2% / 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||27.8-28.8V|
|Maximum Charge Voltage||29.4V|
|Recommended Charge Voltage||5 - 20A|
|Max Charge Amps||80A (@29V from charing system); |
150A (@28.2V from charing 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||8.9 lb. (1.8kg)|
|Dimensions||6.5 in (L) x 5.1 in (W) x 6.6 in (H) |
166mm (L) x 129mm (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|
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.