Dell Projector 1220 - Manual (Page 21)

Using Your Projector 21
Installing the Remote Control Batteries
NOTE: Remove the batteries from the remote control when not in
use.
1
Press the tab to lift the battery compartment
cover.
2
Check the polarity (+/-) marking on the batteries.
3
Insert the batteries and align their polarity
correctly according to the marking in the battery
compartment.
NOTE: Avoid mixing different types of batteries or
using new and old batteries together.
4
Slip the battery cover back.
1
AAA
AAA
2
AAA
AAA
3
4