Canon 10 x 42 L IS WP Instruction Manual - Page 9

Loading the Batteries 1 Open the cover. zzUse a coin or a similar item to turn the lock screw 90 degrees as shown by the arrow. Then open the cover. 2 Load the batteries. zzLoad two batteries in the correct + and - orientation as shown on the battery cover. 3 Close the cover. zzHold down the battery chamber cover and tighten the lock screw. Battery Life (Continuous Use) Size-AA lithium batteries Size-AA Ni-HN batteries Size-AA alkaline batteries 25˚C / 77˚F Apporox. 8 hours Apporox. 6 hours Apporox. 2.5 hours -10˚C / 14˚F Apporox. 3.5 hours Apporox. 2.5 hours Apporox. 10 minutes (Based on Canon's testing conditions.) zzSize-AA manganese batteries are not recommended due to their low energy. zzChange batteries when the binoculars are dry and there is no moisture or dirt. zzBe careful not to let moisture onto the inner side of the battery chamber cover or into the chamber. If there is moisture, make sure to remove it and adequately dry it off before changing batteries. zzWet batteries may result in battery leakage and failure. ENG-8