3830 SL  (250-3573)           Battery Information       Faxback Doc. # 1215

You can power the computer for about 3 hours from a fully charged battery.
However, operating time varies depending on the condition of the battery,
options you install, the backlight brightness, and the amount of diskette
drive and hard drive access. The supplied battery comes discharged. Before
you can use the computer with battery power, you must install and charge the
battery as follows:

1. Disconnect the AC adapter/charger if it is attached.
2. Turn the computer upside down and place it on a flat surface.
3. Place the battery straight down into the battery compartment so that the
   tabs on the sides of the battery fit into the slots in the compartment.
   Then, shift the battery in the direction of the arrow on top of the
   battery.
4. Adjust the battery side and press down on the battery until it is flush
   with the bottom of the computer.
5. Slide in the battery until it locks into position.
6. Turn over the computer and connect the AC adapter/charger A fully
   discharged battery takes about 2 hours to charge.

Note: If you plan to use the computer from battery power for extended periods
of time, we recommend that you buy one or more additional batteries. This
lets you use the computer longer when you are away from AC power.

Precautions for Battery use:

* To prevent damaging the battery, the computer interrupts charging if the 
  temperature is outside the range of about 40'F to 100'F. Charge the battery 
  only within this range.
* Never expose the computer to extreme heat or cold. Do not leave the computer 
  in direct sunlight or in another hot area (such as inside a car) for a long 
  period of time, and do not expose the battery to an open flame.
* Do not connect the negative and positive terminals of the battery to each 
  other.
* To save battery power, turn off the computer when you finish using it with 
  the battery.
* If you plan not to use the computer from battery power for more than about a 
  week, remove the battery.
* Eventually, a battery loses its ability to maintain a charge. When this 
  occurs, replace the battery with the same type of battery. Then, fully 
  charge the new battery before you use it.
* Use only a battery that is designed for use with the 3830 SL.
* Be careful not to short-circuit the battery by dropping it or damaging its 
  insulation. Doing so could result in overheating or a fire.
* Do not touch or bend the battery terminals in the battery cavity. Dirty or 
  damaged terminals could reduce the performance of the battery.

Recharging the Battery:

When the BATT indicator on the computer is red, recharge the battery. To do 
so, connect the AC adapter/charger to the computer. The BATT indicator; turns 
orange and charging begins. When the battery is about 90% charged, the
indicator turns to green. Then, the battery trickle charges for about 1 more
hour until it is fully charged.

Charging time depends on the following conditions:

* If the computer is off, the battery charges in about 2 hours.
* If the computer is on, the battery charges in 2 to 5 hours.
* If you installed the optional docking station, the battery charges in 3-5
  hours.

Battery Status Indicator:

The BATT (battery) indicator on the center hinge of the computer show you
the status of the battery when the computer is on. The following table
describes each indicator.

BATT Indicator Status Meaning:

Off                     The computer is being power from only the battery.
Orange                  The battery is being charged. (AC power is connected.)
Green                   The battery is at least 90% charged.
Flashing Orange         The computer is being powered from an AC outlet and
                        the battery is not attached, improperly installed,
                        or might be defective.
Red*                    The battery has less than 10 minutes of power left.
Flashes Red             There might be a problem with the battery and/or its
                        charging circuit.

CAUTION: When the BATT indicator is red, the battery can supply power for 
about 10 more minutes. The computer sounds a beep the last 2 minutes of this 
10-minute period. At the end of the 2 minutes, the computer automatically 
turns off. If the BATT indicator is red, save any files onto the computer's
hard disk. Then, connect the AC adapter/charger and recharge the battery.
If this is not possible, install a spare, fully-charged battery. Before you
install the spare battery, save all data, turn off the computer, and replace 
the battery. Then, turn the computer back on and resume operation.