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Battery Holder
The plastic battery holder that comes with the 
965DSP uses six “AA” alkaline batteries (alkaline 
batteries are not included). 
Use alkaline batteries only when the NiMH battery 
pack is discharged and the AC adapter is not 
available. Typical lifetime of the alkaline battery 
pack is twenty hours of normal use (less if you 
use the backlight frequently, use the optional /SA 
or /ADSL features heavily, or work in very cold 
weather). There is no battery icon displayed if 
alkaline batteries are installed.
Note:  The battery holder has protection against 
accidental charging of alkaline batteries.  
The alkaline battery pack is installed the same way 
as the NiMH battery pack.
AC Charger
Use the AC charger to charge the NiMH Battery 
pack. Plug the AC cord into the AC charger and into 
a power outlet. Plug the DC cord into the 965DSP. 
Make sure that the key on the plug fits properly 
into the slot in the connector. The AC charger is 
meant for charging the NiMH battery pack only. 
Do not use the AC charger to power the 965DSP 
during normal operations.
DC Charger
Use the Cigarette Lighter Adapter to charge the 
NiMH battery pack from a vehicle’s battery. 
This 
adapter is meant for charging the NiHM battery 
pack only and should not be used to power the 
965DSP during normal operations.
IR Port
 
The IR Port at the top of the 965DSP is used for 
downloading new software or uploading test results 
or TDR traces to a PC or printer. A separate IR 
adapter cable is available as an option for each 
application. Refer to ‘Stored Results’ (page 30) for 
directions to print or upload results.