4 
1.2.2   Charging the Battery 
 
For optimal performance, we recommend charging the battery twice before initial use.  Charge 
the battery for 3 hours; disconnect the power adapter, reconnect and charge again. After this 
initial charge, charge the battery for 180 minutes whenever the low battery indicator comes on 
or as directed by you IT team. Follow the next procedure for charging the battery: 
 
  Plug battery charger adapter output cable in the battery charger connector as shown in 
Figure 3
. 
  Plug battery charger adapter into the appropriate AC line voltage socket. 
  Battery LED will illuminate amber indicating that the battery is being charged. 
  The battery will be fast charged and after about 180 minutes the Battery LED will turn off 
  To remove the battery cartridge, open the battery door and tip the battery out of the printer. 
 
 
FIGURE 3: CHARGING THE BATTERY CARTRIDGE 
 
Note: To ensure a full charge, do not operate the printer while charging. 
 
Note: The wall-mounted charger is a Class II equipment. Multiple plug configurations comply 
with most international standards. The wall-mounted charger is not supplied with plugs for 
use in Korea. 
 
Model   APEX 4 
Input Voltage/Current  100-240 VAC/ 0.4A 
Input Frequency  47-63 HZ 
 
 
Do not use a charger not approved by Datamax-O’Neil for use with the APEX 4. Use of 
an unapproved charger could damage the battery pack or the printer and will void the 
warranty. 
 
The battery terminals are well recessed inside the printer. Do not allow them to contact 
conductive material since this may create a short circuit, which could cause injury or 
start a fire. 
 
When using the wall mounted charger ensure the socket outlet is close to the printer 
and easily accessible during the battery recharging process. Either switch the socket 
off (if supplied with a socket switch) or pull out the charger from the socket or 
disconnect the plug from the printer in the event of any problems.