User's Manual

SECTION 9 BATTERY MANAGEMENT PAGE 169
9711-26020-0001
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Rev B
Fully Depleted Batteries
CAUTION!
Batteries that are allowed to discharge below the 3% charge level
may not be recoverable and may have to be discarded.
A lithium battery that is not installed in the X10gx will self discharge at the rate of about 0.3%
per day or 3% every 10 days (faster in higher temperature conditions). A fully depleted battery
(10% charge level or below) is therefore in danger of becoming overly discharged (below the
3% charge level) after about 23 days.
To protect the life of your batteries, DRS recommends you wait no longer than 10 days to
recharge a fully depleted battery.
How to Charge Your Batteries
The X10gx batteries automatically begin charging when installed in the ARMOR Tablet and
external power is applied. To recharge the batteries, plug the circular connector of the AC
adapter into the AC adapter port on the left side of the ARMOR X10gx, or into the PWR
connector on the port replicator or desk dock unit. If your X10gx is installed in a vehicle dock,
the batteries will charge whenever vehicle battery power is available.
Charging Time
The charging time for a fully depleted battery (10% charge or less) is approximately 1-2 hours
depending on battery capacity and temperature. Two fully depleted batteries will take
approximately twice as long to charge, or about 4 hours. Using the computer during charging
will lengthen the recharge time depending on backlight setting, computer usage and
surrounding temperature.
Don’t be alarmed if batteries feel warm to the touch during the charging process.
NOTE
The charging cycle is not linear and the last 20% of charge takes
proportionally longer to complete than the first 80% of charge time.