DuraMax™ Tablet 8.4 - Grayhill, Inc.

Setting Up the Tablet
DuraMax Tablet 8.4 Product Guide v2.01
The DuraMax Tablet 8.4 is typically shipped with its handle attached and its stylus in the
handle’s slot. A rechargeable Lithium Ion battery pack accompanies the product, but is not
installed in the Tablet. Thus, some initial setup is required.
1. Install the Battery Pack
The Tablet’s Lithium Ion battery is a custom battery that provides 4000 mAH at a nominal 11.1
volts. This custom battery, available only from Grayhill, is shipped uninstalled. To install the
battery pack:
1. Insert the battery pack into the battery bay at the bottom rear of the Tablet, ensuring that the
alignment tabs on the battery pack fit into the alignment slots on the top of the battery bay,
and that the battery is fully seated.
2. Using a dime or a penny, install the two slotted screws designated to secure the battery pack
in the two screw holes at the bottom of the battery pack.
2. Charge the Tablet
Figure 1. Installing the Tablet Battery Pack
Before using the DuraMax Tablet 8.4, charge its battery pack at least 2 hours, 2 using either the
AC adapter or the Tablet docking cradle. Charging the Tablet on the dock takes the same
amount of time as charging it with the AC adapter; both are effective ways to charge the Tablet.
Tablets with fully charged, new battery packs, that have continuous screen activity and the
backlight at default brightness, will have a battery life of 8 hours.
Typical use of the Tablet will not require the unit to be powered for the entire shift. Usually the
device will enter Suspend mode (see page 19 to set this feature). In Suspend mode, the Tablet
appears to be turned off; however, when the Power button is pressed, it instantly wakes up and
allows work to continue from the previous state of the unit. Thus, if the Tablet is used for 15
minutes every hour and suspended the rest of the time, a new unit with default brightness and no
peripherals attached will last for a 28-hour shift.
Note: The Tablet battery charges only at battery temperatures of 0°C - 45°C (32°F - 113°F). If the Tablet
has been running on battery power for a while, the battery may be up to 10° warmer than the ambient
temperature. Thus, charging a warm battery may only be possible at ambient temperatures ranging from
about -10°C to 35°C (14°F - 95°F). Charging the Tablet battery at room temperature will extend the
battery’s life.
2
Battery power is at approximately 80% after 2 hours of charging, 90% after 3 hours of charging, and 100% after 5 hours of charging. Charging time increases
if the Tablet is providing power for screen or peripheral activities.
© 2004 Grayhill, Inc., Confidential and Proprietary Page 7