Casio DT-X5 Series - Manual (Page 29)

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Replacing the Battery
Your Handheld Terminal uses two types of battery: main battery and a memory backup
battery.
AA size alkaline batteries (DT-X5M10E/DT-X5M30E/DT-X5M30U) or the battery pack
is used for the main battery. There are two types of battery packs that can be used,
consisting of the battery pack (HA-A20BAT) and the large-capacity battery pack (DT-
5025LBAT).
The backup battery is installed inside of the Handheld Terminal.
This guide uses the following terms to refer to the batteries.
Main battery: Alkaline batteries or battery pack for operation.
Backup battery: Memory backup battery contained within the Handheld Terminal.
Battery pack: Generic name for the battery pack (HA-A20BAT) and large-capacity
battery pack (DT-5025LBAT) used for the main battery.
If the main battery becomes worn down, either replace with new AA size alkaline
batteries, promptly charge the battery pack or replace with a charged battery pack.
You can use the Dual Battery Charger, the Cradle-type Battery Charger, or the Bridge
Satellite Cradle/Bridge Basic Cradle to charge a battery pack. See the sections of this
guide that cover the Dual Battery Charger, the Cradle-type Battery Charger, and the
Bridge Satellite Cradle/Bridge Basic Cradle for information about how to use them for
charging.
Replacing the Battery Pack
Important!
Always keep backup copies of all important data!
• The main battery powers normal operation and also provides power required to
maintain memory contents, while the backup battery provides backup power to
maintain memory contents. Because of this, you should not remove the main
battery while the backup battery is dead. Removing the battery pack while the
backup battery is dead causes data in the memory to be corrupted or lost. Note
that once data is lost it cannot be recovered. Always keep separate backup copies
of all important data.
• The charge of a battery pack when you purchase it may be depleted due to testing
at the factory or natural discharge during shipment and storage. Be sure to
charge the battery pack before you use it.
• The life of a battery pack is limited, and charging a battery pack causes it to
gradually lose its ability to maintain the charge. If your battery pack seems to require
charging very frequently, it probably means it is time to purchase a new one.
• The backup battery achieves a full charge in about four days when the battery
pack is loaded.
• A fully charged backup battery can maintain memory (RAM) contents for about
three days, even when the main battery is removed.
• When using batteries for the main battery, always make sure to use AA size
alkaline batteries.
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