E T X T S O L I T H I U M B A T T E R I E S
10
dimensions and for recommended battery hold down bracket positions on the
battery.
Be careful that the positive battery terminal does not or will not touch any metal parts of the
aircraft.
Battery Vent Installation
This battery includes a thermal run-away containment system. The containment system
includes a vent tube designed to carry vapor or smoke to the exterior of the aircraft in the
event of a thermal run-away condition. There are no emissions during normal operation.
For specific installation instructions based on the type of aircraft and or battery mounting
location, see the Appendix. Plus, follow the below guidelines for properly installing the vent
tubes.
Route the vent tubes to the outside of the aircraft or a compartment sealed-off from
the passenger cabin that is vented to the outside. Be sure emitted gases will not be
directed to cabin air intakes.
Routing of vent tubes should include a 6” vertical section after exiting the battery
and a downward slope so condensate drains to the outside of the aircraft.
Secure the vent tubes within 12” of the battery and within 12” of the aircraft exit
Be careful not to crush or restrict flow through the tubing.
The minimum bend radius is 3”; tighter bends could cause the tubing to kink.
Only EarthX supplied tubing should be used. The tubing is chemical resistant and
rated for 500°F (Teflon tubing).
If required 90° elbows may be used to make small radius corners. Fittings must be brass,
stainless, Teflon or other material with at least a 400 °F temperature rating (i.e. nylon).
Barbed fittings must not restrict flow. To install the supplied elbows, it is helpful to heat the
tubing to a couple hundred degrees F before pressing them into the tubes. Be sure the
entire barbed part of the elbow is completely inserted into the tubing.
Installation of the battery in the cockpit requires the battery is properly vented over-
board.
Fault Monitoring Installation
The ETX Hundred Series batteries have a discrete output that can be connected to many aircraft
Electronic Flight Instrument System (EFIS) electronics or to a remote mounted LED.
Alternately, RS-232 serial communication connection can be made to an EFIS. The diagrams
below detail the required connections for each type installation. For specific installation
instructions based on the type of aircraft and or battery mounting location, see the Appendix or
refer to the instruction given in the STC.
