E T X T S O L I T H I U M B A T T E R I E S
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this case, simply connect the battery to a charger to restore charge (charge with 1-10 amps
for 20-30 minutes), and then re-check the voltage. If the voltage is 12.8V or greater and
holding a charge, the battery should be ok and can be fully charged. If the battery voltage
does not return to >9 volt after removing any and all load. Then (step 1) connect the
Optimate battery cables to the battery (red clamp to positive and black clamp to negative),
next (step 2) plug the charger power cord into AC outlet. The charger should startup and
go into the “Save” charging mode. If not contact EarthX technical support.
If using a Ground Power Unit (GPU), the current rating or current setting SHALL NOT be
more than the max charge rate stated on the battery label or in this manual. It is
recommended that a warning label is placed next to the GPU plug stating the max current
allowed.
Never jump start from a car size battery or larger!
Never charge a faulty battery (a battery that will not accept a charge or hold a
charge).
Never use the de-sulfate setting on your charger.
Be sure the charger’s output
voltage level does not exceed 15V. If the charger does not display the voltage reading, then
use a voltmeter to check the voltage while charging.
If the battery gets hot while charging, discontinue charging and use.
Do not charge battery in temperatures above 140 degrees F (60C), or in direct
sunlight.
When charging a battery, place it on a non-flammable surface, and remove any
flammable items nearby.
For maximum battery and starting system life, do not crank an engine for
more than 15 seconds within any 1 minute period.
Battery End of Life
The ETX900-TSO battery expected life is 6 years. However, the following conditions
indicate battery end-of-life and the battery shall be replaced to ensure continued
airworthiness:
Insufficient capacity per annual maintenance requirements above
Insufficient power to crank engine
