User's Manual

1-5
know when to shut down without causing problem. NiCad and NiMH batteries
don’t have the same level of reserve power as alkalines, so the Terminal will
attempt to continue operation beyond the capability of the batteries if the Setup
is left at the default alkaline setting.
Alkaline batteries (including alkaline rechargeables) should provide
approximately 14 hours of continuous operation with 8 transactions per minute
average. NiCad rechargeable batteries will give approximately 40% less
operational time than alkalines.
Rechargeable Batteries
If you want to use rechargeable batteries, you can use a fast external 3
rd
party
charger, you can use slower trickle recharging circuitry that allows you to recharge
the batteries while installed in the R/F Terminal. To use the recharging circuitry on
the T71/LT71 terminals, you must change a jumper inside the R/F Terminal itself,
(see Appendix A, Hardware Changes on the RF Terminal). Recharging
circuitry is standard on the European terminals – there are no jumper changes
required.
To recharge batteries in a RF Terminal, simply plug in an optional additional
charge Worth Data 5v Power Adapter. For best results, use only NiMH
rechargeable batteries. NiMH Rechargeable Batteries are available from Worth
Data and can be ordered as part number L01 for $10.00 for a set of 3. The internal
trickle charge takes 8-10 hours. Inexpensive, external chargers can be purchased
which recharge batteries in 2-3 hours.
You can safely use alkaline batteries in a terminal set for recharging, providing
you don’t plug a power supply into the terminal. Recharging Alkaline batteries
may cause the batteries to explode and leak battery acid throughout the RF
Terminal. Battery acid damage is not covered by the Worth Data warranty
because it not deemed to be “normal use”.
IMPORTANT! If you decide to use NiMH or NiCad batteries, with the internal
charging or an external charger, be sure to change the Speaker/Battery setting to
“rechargeable” or your terminal will start exhibiting very strange behavior as the
batteries run down.
If you are using alkaline batteries (either regular or rechargeables) and have
selected the NiCad/Rechargeables setting in the Speaker/Battery setup
parameter (See Chapter 2; RF System Setup), the RF Terminal will generate the
following error message:
Warning Alkaline
Batteries Detected
Nicads Are Specified
Do Not Recharge