E T X T S O L I T H I U M B A T T E R I E S
180426
13
Placard:
Flight Supplement -Tabular Information
The table below is a summary of the battery’s three fault codes; solid, slow cycling or fast
cycling. The fault codes are considered cautionary or advisory ONLY. The panel mount
LED shall be yellow or amber in color.
Normal Aircraft Charging System Operation
The fault codes when active during normal electrical system operation require no pilot
corrective action.
LED Light
Voltage/Current Possible Cause
Recommended Action
Slow Flashing
(5s on/5s off)
12.8-14.6V/
Normal
Cell to cell charge level
imbalance
No pilot action is required in flight.
The pilot should report battery
problem to maintenance
personnel when back on the
ground (note how long the fault
light was on).
Solid Light
Any voltage or
current
BMS electronics problem
No pilot action is required in flight.
The pilot should report battery
problem to maintenance
personnel when back on the
ground.
Short Flashing
(2s on/2s off)
Any voltage or
current
High battery temperature
(> 85
°C / 185°F)
No pilot action is required in flight.
The pilot should report battery
problem to maintenance
personnel when back on the
ground.
