NEC MobilePro 790 User Manual page 75

Open the display panel and remove the stylus from its holder.
1.
Remove the battery pack as follows:
2.
Locate the battery lock and release latch on the bottom of the
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system.
Slide the lock to the unlocked position in the direction of the
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arrow, as indicated in the following figure.
Slide the release latch in the direction of its arrow, as indicated in
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the following figure, and hold it.
Remove the battery from the bay.
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Removing the battery pack
A – Battery release latch
B – Battery release lock
C – Battery pack
Using the NEC MobilePro 4-19