Vivitar VIV-PRO-648 Camera Flash User Manual


 
Loading Batteries
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Make sure the On/Off Switch is in the Off position. Slide
open the Battery Compartment Cover and insert 4 x AA
batteries with correct polarity(-,+), as indicated in the
battery compartment. Close the Battery Compartment
Cover. Inserting batteries with the wrong polarity may
cause the batteries to heat up, leak, explode and damage
the flash. When you need to replace batteries, make sure all
batteries are of the same brand, type and same capacity.