E T X T S O L I T H I U M B A T T E R I E S
15
If the battery has been over-discharged and “disconnected”, the voltage at the battery
terminal should be near zero volts if the battery still has a load on it. If the battery is
disconnected from the load it will automatically reconnect and the terminal voltage return to
> 18 volts (remove the load by removing the positive or negative cables from the battery).
In this case, simply connect the battery to a charger to restore charge (charge for 20-30
minutes), and then re-check the voltage. If the voltage is 25V or greater and holding a
charge, the battery should be ok and can be fully charged. If the battery does not
automatically reset when removing any and all load, connect the Optimate TM281 to the
battery, then press and hold the “Reset” button on the charger for 20 seconds. The charger
should start charging in the “Save” mode. It may require several attempts. If the battery
still will not charge, contact EarthX tech 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 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.
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.
Storage
If the Aircraft is to be put in storage for an extended period of time (> 6 months),
disconnect the battery cable to eliminate drain from the Aircraft’s electrical system. A fully
charged battery can be put in storage for up to a year without charging, but should be
charged and inspected annually.
