E-16
Loading and Removing the Battery Pack
Your Handheld Terminal uses two types of battery: a battery pack and a memory 
backup battery.
The battery pack is used to power normal operations and to store data, while the 
memory backup battery provides the power required to maintain memory contents 
when the battery pack power is unable to supply power for some reason.
Use the battery pack (HA-K23XLBAT) as the main power source.
The backup battery is installed inside of the Handheld Terminal.
This guide uses the following terms to refer to the batteries.
Battery Pack:  Rechargeable battery pack (HA-K23XLBAT) for normal operations 
and data storage
Backup Battery:  Built-in battery for memory backup
When the battery pack power goes low, immediately charge it or replace it with a 
charged battery pack.
You can use the USB Cradle, the Ethernet Cradle, the USB and Charging Unit, the 
Dual Battery Charger or the Cradle-type Dual Battery Charger to charge a battery 
pack installed in the terminal. See the relevant sections in this guide for the respective 
options about how to use.
Important!
Always keep backup of all important data!
The battery pack 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 battery 
pack if 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 backup 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. 
If a battery pack is used past the end of its service life, it may swell up in size. In 
such a case, replace the battery pack with a new one.
If the backup battery is fully charged, it will maintain the contents of the 
terminal’s memory (RAM) for approximately 10 minutes when the main battery 
pack is removed.
It takes 4 days with the main battery pack installed in the terminal for the 
backup battery to be charged fully.
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